{
    "Header": {
        "data_specs_version": "01.00.33", 
        "cmor_version": "3.5", 
        "table_id": "Table Emon", 
        "realm": "land", 
        "table_date": "18 November 2020", 
        "missing_value": "1e20", 
        "int_missing_value": "-999", 
        "product": "model-output", 
        "approx_interval": "30.00000", 
        "generic_levels": "alevel olevel", 
        "mip_era": "CMIP6", 
        "Conventions": "CF-1.7 CMIP-6.2"
    }, 
    "variable_entry": {
        "c13Land": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_13C_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 13C in All Terrestrial Carbon Pools", 
            "comment": "Carbon-13 mass content per unit area in vegetation (any living plants e.g. trees, shrubs, grass), litter (dead plant material in or above the soil), soil, and forestry and agricultural products (e.g. paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock).", 
            "dimensions": "longitude latitude time", 
            "out_name": "c13Land", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c13Litter": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "litter_mass_content_of_13C", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 13C in Litter Pool", 
            "comment": "Carbon-13 mass content per unit area litter (dead plant material in or above the soil).", 
            "dimensions": "longitude latitude time", 
            "out_name": "c13Litter", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c13Soil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_13C", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 13C in Soil Pool", 
            "comment": "Carbon-13 mass content per unit area in soil.", 
            "dimensions": "longitude latitude time", 
            "out_name": "c13Soil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c13Veg": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "vegetation_mass_content_of_13C", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 13C in Vegetation", 
            "comment": "Carbon-13 mass content per unit area in vegetation (any living plants e.g. trees, shrubs, grass).", 
            "dimensions": "longitude latitude time", 
            "out_name": "c13Veg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c14Land": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_14C_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 14C in All Terrestrial Carbon Pools", 
            "comment": "Carbon-14 mass content per unit area in vegetation (any living plants e.g. trees, shrubs, grass), litter (dead plant material in or above the soil), soil, and forestry and agricultural products (e.g. paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock).", 
            "dimensions": "longitude latitude time", 
            "out_name": "c14Land", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c14Litter": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "litter_mass_content_of_14C", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 14C in Litter Pool", 
            "comment": "Carbon-14 mass content per unit area litter (dead plant material in or above the soil).", 
            "dimensions": "longitude latitude time", 
            "out_name": "c14Litter", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c14Soil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_14C", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 14C in Soil Pool", 
            "comment": "Carbon-14 mass content per unit area in soil.", 
            "dimensions": "longitude latitude time", 
            "out_name": "c14Soil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "c14Veg": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "vegetation_mass_content_of_14C", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of 14C in Vegetation", 
            "comment": "Carbon-14 mass content per unit area in vegetation (any living plants e.g. trees, shrubs, grass).", 
            "dimensions": "longitude latitude time", 
            "out_name": "c14Veg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLand": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_carbon_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Carbon in All Terrestrial Carbon Pools", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLand", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLitterCwd": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "wood_debris_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Coarse Woody Debris", 
            "comment": "'Content' indicates a quantity per unit area. 'Wood debris' means dead organic matter composed of coarse wood. It is distinct from fine litter. The precise distinction between 'fine' and 'coarse' is model dependent.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLitterCwd", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLitterGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "litter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Litter on Grass Tiles", 
            "comment": "'Litter' is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between 'fine' and 'coarse' is model dependent. 'Content' indicates a quantity per unit area. The sum of the quantities with standard names surface_litter_mass_content_of_carbon and subsurface_litter_mass_content_of_carbon has the standard name litter_mass_content_of_carbon.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLitterGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLitterShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "litter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Litter on Shrub Tiles", 
            "comment": "'Litter' is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between 'fine' and 'coarse' is model dependent. 'Content' indicates a quantity per unit area. The sum of the quantities with standard names surface_litter_mass_content_of_carbon and subsurface_litter_mass_content_of_carbon has the standard name litter_mass_content_of_carbon.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLitterShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLitterSubSurf": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "subsurface_litter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Below-Ground Litter", 
            "comment": "subsurface litter pool fed by root inputs.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLitterSubSurf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLitterSurf": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_litter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Above-Ground Litter", 
            "comment": "Surface or near-surface litter pool fed by leaf and above-ground litterfall", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLitterSurf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cLitterTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "litter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Litter on Tree Tiles", 
            "comment": "'Litter' is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between 'fine' and 'coarse' is model dependent. 'Content' indicates a quantity per unit area. The sum of the quantities with standard names surface_litter_mass_content_of_carbon and subsurface_litter_mass_content_of_carbon has the standard name litter_mass_content_of_carbon.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cLitterTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cMisc": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "miscellaneous_living_matter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Other Living Compartments on Land", 
            "comment": "e.g., labile, fruits, reserves, etc.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cMisc", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cOther": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "miscellaneous_living_matter_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Vegetation Components Other than Leaves, Stems and Roots", 
            "comment": "E.g. fruits, seeds, etc.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cOther", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Model Soil Pool", 
            "comment": "Carbon mass in the full depth of the soil model.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cSoil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoilAbove1m": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Soil Pool Above 1m Depth", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time sdepth10", 
            "out_name": "cSoilAbove1m", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoilGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Soil on Grass Tiles", 
            "comment": "'Content' indicates a quantity per unit area. The 'soil content' of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cSoilGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoilLevels": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Each Model Soil Level (Summed over All Soil Carbon Pools in That Level)", 
            "comment": "for models with vertically discretised soil carbon, report total soil carbon for each level", 
            "dimensions": "longitude latitude sdepth time", 
            "out_name": "cSoilLevels", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoilPools": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Each Model Soil Pool (Summed over Vertical Levels)", 
            "comment": "For models with multiple soil carbon pools, report each pool here. If models also have vertical discretisation these should be aggregated", 
            "dimensions": "longitude latitude soilpools time", 
            "out_name": "cSoilPools", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoilShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Soil on Shrub Tiles", 
            "comment": "'Content' indicates a quantity per unit area. The 'soil content' of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cSoilShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cSoilTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Soil on Tree Tiles", 
            "comment": "'Content' indicates a quantity per unit area. The 'soil content' of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cSoilTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cStem": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "stem_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Stem", 
            "comment": "including sapwood and hardwood.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cStem", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cTotFireLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Carbon Loss from Natural and Managed Fire on Land-Use Tile, Including Deforestation Fires [kgC m-2 s-1]", 
            "comment": "Different from LMON this flux should include all fires occurring on the land use tile, including natural, man-made and deforestation fires", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "cTotFireLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cVegGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "vegetation_carbon_content", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Vegetation on Grass Tiles", 
            "comment": "'Content' indicates a quantity per unit area. 'Vegetation' means any plants e.g. trees, shrubs, grass. Plants are autotrophs i.e. 'producers' of biomass using carbon obtained from carbon dioxide.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cVegGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cVegShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "vegetation_carbon_content", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Vegetation on Shrub Tiles", 
            "comment": "'Content' indicates a quantity per unit area. 'Vegetation' means any plants e.g. trees, shrubs, grass. Plants are autotrophs i.e. 'producers' of biomass using carbon obtained from carbon dioxide.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cVegShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cVegTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "vegetation_carbon_content", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Vegetation on Tree Tiles", 
            "comment": "'Content' indicates a quantity per unit area. 'Vegetation' means any plants e.g. trees, shrubs, grass. Plants are autotrophs i.e. 'producers' of biomass using carbon obtained from carbon dioxide.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cVegTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cWood": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "stem_mass_content_of_carbon", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass in Wood", 
            "comment": "Carbon mass per unit area in wood, including sapwood and hardwood.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cWood", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cfadDbze94": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "histogram_of_equivalent_reflectivity_factor_over_height_above_reference_ellipsoid", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CloudSat Radar Reflectivity CFAD", 
            "comment": "CFAD (Cloud Frequency Altitude Diagrams) are frequency distributions of radar  reflectivity (or lidar scattering ratio) as a function of altitude. The variable cfadDbze94 is defined as the simulated relative frequency of occurrence of radar reflectivity in sampling volumes defined by altitude bins. The radar is observing at a frequency of 94GHz.", 
            "dimensions": "longitude latitude alt40 dbze time", 
            "out_name": "cfadDbze94", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cfadLidarsr532": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "histogram_of_backscattering_ratio_in_air_over_height_above_reference_ellipsoid", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Scattering Ratio CFAD", 
            "comment": "CFAD (Cloud Frequency Altitude Diagrams) are frequency distributions of radar  reflectivity (or lidar scattering ratio) as a function of altitude. The variable cfadLidarsr532 is defined as the simulated relative frequency of lidar scattering ratio in sampling volumes defined by altitude bins. The lidar is observing at a wavelength of 532nm.", 
            "dimensions": "longitude latitude alt40 scatratio time", 
            "out_name": "cfadLidarsr532", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clcalipsoice": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "ice_cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Ice Cloud Percentage", 
            "comment": "Percentage cloud cover in CALIPSO standard atmospheric layers.", 
            "dimensions": "longitude latitude alt40 time", 
            "out_name": "clcalipsoice", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clcalipsoliq": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "liquid_water_cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Liquid Cloud Percentage", 
            "comment": "Percentage liquid water ice cloud cover in CALIPSO standard atmospheric layers.", 
            "dimensions": "longitude latitude alt40 time", 
            "out_name": "clcalipsoliq", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cldicemxrat27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_ice_mixing_ratio", 
            "units": "1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Cloud Ice Mixing Ratio", 
            "comment": "Cloud ice mixing ratio", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "cldicemxrat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cldnci": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "number_concentration_of_ice_crystals_in_air_at_ice_cloud_top", 
            "units": "m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Ice Crystal Number Concentration of Cloud Tops", 
            "comment": "Concentration 'as seen from space' over ice-cloud portion of grid cell.  This is the value from uppermost model layer with ice cloud or, if available, it is the sum over all ice cloud tops, no matter where they occur, as long as they are seen from the top of the atmosphere. Weight by total ice cloud top fraction (as seen from TOA) of each time sample when computing monthly mean.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cldnci", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cldncl": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "number_concentration_of_cloud_liquid_water_particles_in_air_at_liquid_water_cloud_top", 
            "units": "m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Cloud Droplet Number Concentration of Cloud Tops", 
            "comment": "Droplets are liquid only.  Report concentration 'as seen from space' over liquid cloudy portion of grid cell.  This is the value from uppermost model layer with liquid cloud or, if available, it is better to sum over all liquid cloud tops, no matter where they occur, as long as they are seen from the top of the atmosphere. Weight by total liquid cloud top fraction of  (as seen from TOA) each time sample when computing monthly mean.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cldncl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cldnvi": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_number_content_of_cloud_droplets", 
            "units": "m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Column Integrated Cloud Droplet Number", 
            "comment": "Droplets are liquid only.  Values are weighted by liquid cloud fraction in each layer when vertically integrating, and for monthly means the samples are weighted by total liquid cloud fraction (as seen from TOA).", 
            "dimensions": "longitude latitude time", 
            "out_name": "cldnvi", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cldwatmxrat27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_liquid_water_mixing_ratio", 
            "units": "1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Cloud Water Mixing Ratio", 
            "comment": "Cloud water mixing ratio", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "cldwatmxrat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "climodis": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "ice_cloud_area_fraction", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "MODIS Ice Cloud Area Percentage", 
            "comment": "Total ice cloud area fraction (reported as a percentage) for the whole atmospheric column, as seen by the  Moderate Resolution Imaging Spectroradiometer (MODIS). ", 
            "dimensions": "longitude latitude time", 
            "out_name": "climodis", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clmisr": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Percentage Cloud Cover as Calculated by the MISR Simulator (Including Error Flag)", 
            "comment": "Cloud percentage in spectral bands and layers as observed by the Multi-angle Imaging SpectroRadiometer (MISR) instrument. The first layer in each profile is reserved for a retrieval error flag.", 
            "dimensions": "longitude latitude alt16 tau time", 
            "out_name": "clmisr", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cltmodis": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "MODIS Total Cloud Cover Percentage", 
            "comment": "Total cloud area fraction (reported as a percentage) for the whole atmospheric column, as seen by the  Moderate Resolution Imaging Spectroradiometer (MODIS). Includes both large-scale and convective cloud.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cltmodis", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clwmodis": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "liquid_water_cloud_area_fraction", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "MODIS Liquid Cloud Percentage", 
            "comment": "Mass of cloud liquid water, as seen by the  Moderate Resolution Imaging Spectroradiometer (MODIS). Includes both large-scale and convective cloud.", 
            "dimensions": "longitude latitude time", 
            "out_name": "clwmodis", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clwvic": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_mass_content_of_convective_cloud_condensed_water", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Convective Condensed Water Path", 
            "comment": "calculate mass of convective condensed (liquid + ice) water in the column divided by the area of the column (not just the area of the cloudy portion of the column). This includes precipitating hydrometeors ONLY if the precipitating hydrometeors affect the calculation of radiative transfer in model.", 
            "dimensions": "longitude latitude time", 
            "out_name": "clwvic", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "co23D": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_fraction_of_carbon_dioxide_tracer_in_air", 
            "units": "kg kg-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "3D-Field of Transported CO2", 
            "comment": "report 3D field of model simulated atmospheric CO2 mass mixing ration on model levels", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "co23D", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "co2s": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mole_fraction_of_carbon_dioxide_in_air", 
            "units": "1e-06", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Atmosphere CO2", 
            "comment": "As co2, but only at the surface", 
            "dimensions": "longitude latitude time", 
            "out_name": "co2s", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "columnmassflux": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_net_upward_convective_mass_flux", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Column Integrated Mass Flux", 
            "comment": "Column integral of (mcu-mcd)", 
            "dimensions": "longitude latitude time", 
            "out_name": "columnmassflux", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "conccmcn": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "number_concentration_of_coarse_mode_ambient_aerosol_particles_in_air", 
            "units": "m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Number Concentration Coarse Mode Aerosol", 
            "comment": "includes all particles with diameter larger than 1 micron", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "conccmcn", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "conccn": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "number_concentration_of_ambient_aerosol_particles_in_air", 
            "units": "m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Aerosol Number Concentration", 
            "comment": "'Number concentration' means the number of particles or other specified objects per unit volume. 'Aerosol' means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. 'Ambient_aerosol' means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. 'Ambient aerosol particles' are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "conccn", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "concdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_concentration_of_dust_dry_aerosol_particles_in_air", 
            "units": "kg m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Concentration of Dust", 
            "comment": "Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. 'Aerosol' means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. 'Dry aerosol particles' means aerosol particles without any water uptake.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "concdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "concnmcn": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "number_concentration_of_nucleation_mode_ambient_aerosol_particles_in_air", 
            "units": "m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Number Concentration of Nucleation Mode Aerosol", 
            "comment": "includes all particles with diameter smaller than 3 nm", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "concnmcn", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cropFracC3": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Percentage Cover by C3 Crops", 
            "comment": "Percentage of entire grid cell covered by C3 crops", 
            "dimensions": "longitude latitude time typec3crop", 
            "out_name": "cropFracC3", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cropFracC4": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Percentage Cover by C4 Crops", 
            "comment": "Percentage of entire grid cell covered by C4 crops", 
            "dimensions": "longitude latitude time typec4crop", 
            "out_name": "cropFracC4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "depdust": {
            "frequency": "mon", 
            "modeling_realm": "aerosol", 
            "standard_name": "minus_tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_deposition", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Deposition Rate of Dust", 
            "comment": "Fdry mass deposition rate of dust", 
            "dimensions": "longitude latitude time", 
            "out_name": "depdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "diabdrag": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_eastward_wind_due_to_numerical_artefacts", 
            "units": "m s-2", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Eastward Wind from Numerical Artefacts", 
            "comment": "Other sub-grid scale/numerical zonal drag excluding that already provided for the parameterized orographic and non-orographic gravity waves. This would be used to calculate the total 'diabatic drag'. Contributions to this additional drag such Rayleigh friction and diffusion that can be calculated from the monthly mean wind fields should not be included, but details (e.g. coefficients) of the friction and/or diffusion used in the model should be provided separately.", 
            "dimensions": "longitude latitude plev19 time", 
            "out_name": "diabdrag", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "dissi14c": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "mole_concentration_of_dissolved_inorganic_14C_in_sea_water", 
            "units": "mol m-3", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Dissolved Inorganic Carbon-14 Concentration", 
            "comment": "Dissolved inorganic carbon-14 (CO3+HCO3+H2CO3) concentration", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "dissi14c", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ec550aer": {
            "frequency": "mon", 
            "modeling_realm": "aerosol", 
            "standard_name": "volume_extinction_coefficient_in_air_due_to_ambient_aerosol_particles", 
            "units": "m-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Aerosol Extinction Coefficient", 
            "comment": "Aerosol volume extinction coefficient at 550nm wavelength.", 
            "dimensions": "longitude latitude alevel time lambda550nm", 
            "out_name": "ec550aer", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "evspsblpot": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "water_potential_evaporation_flux", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Potential Evapotranspiration", 
            "comment": "at surface; potential flux of water into the atmosphere due to conversion of both liquid and solid phases to vapor (from underlying surface and vegetation)", 
            "dimensions": "longitude latitude time", 
            "out_name": "evspsblpot", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "exparag": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "sinking_mole_flux_of_aragonite_expressed_as_carbon_in_sea_water", 
            "units": "mol m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Downward Flux of Aragonite", 
            "comment": "Downward flux of Aragonite", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "exparag", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "expcalc": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "sinking_mole_flux_of_calcite_expressed_as_carbon_in_sea_water", 
            "units": "mol m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Downward Flux of Calcite", 
            "comment": "Downward flux of Calcite", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "expcalc", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "expfe": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "sinking_mole_flux_of_particulate_iron_in_sea_water", 
            "units": "mol m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sinking Particulate Iron Flux", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.   'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "expfe", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "expn": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "sinking_mole_flux_of_particulate_organic_nitrogen_in_sea_water", 
            "units": "mol m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sinking Particulate Organic Nitrogen Flux", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.   'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "expn", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "expp": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "sinking_mole_flux_of_particulate_organic_phosphorus_in_sea_water", 
            "units": "mol m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sinking Particulate Organic Phosphorus Flux", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.   'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "expp", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "expsi": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "sinking_mole_flux_of_particulate_silicon_in_sea_water", 
            "units": "mol m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sinking Particulate Silicon Flux", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.   'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "expsi", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fAnthDisturb": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_atmosphere_mass_content_of_carbon_dioxide_expressed_as_carbon_due_to_anthropogenic_emission", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux from Vegetation, Litter or Soil Pools into the Atmosphere Due to any Human Activity [kgC m-2 s-1]", 
            "comment": "Anthropogenic flux of carbon as carbon dioxide into the atmosphere. That is, emissions influenced, caused, or created by human activity. Anthropogenic emission of carbon dioxide includes fossil fuel use, cement production, agricultural burning and sources associated with anthropogenic land use change, except forest regrowth.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fAnthDisturb", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fBNF": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_soil_and_vegetation_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_fixation", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Biological Nitrogen Fixation", 
            "comment": "The fixation (uptake of nitrogen gas directly from the atmosphere) of nitrogen due to biological processes.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fBNF", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fCLandToOcean": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_into_sea_water_from_rivers", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacellr", 
            "long_name": "Lateral Transfer of Carbon out of Grid Cell That Eventually Goes into Ocean", 
            "comment": "leached carbon etc that goes into run off or river routing and finds its way into ocean should be reported here.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fCLandToOcean", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fDeforestToAtmos": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_anthropogenic_land_use_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Deforested Biomass That Goes into Atmosphere as a Result of Anthropogenic Land-Use Change [kgC m-2 s-1]", 
            "comment": "When land use change results in deforestation of natural vegetation (trees or grasslands) then natural biomass is removed. The treatment of deforested biomass differs significantly across models, but it should be straight-forward to compare deforested biomass across models.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fDeforestToAtmos", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fDeforestToProduct": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "carbon_mass_flux_into_forestry_and_agricultural_products_due_to_anthropogenic_land_use_or_land_cover_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Deforested Biomass That Goes into Product Pool as a Result of Anthropogenic Land-Use Change", 
            "comment": "When land use change results in deforestation of natural vegetation (trees or grasslands) then natural biomass is removed. The treatment of deforested biomass differs significantly across models, but it should be straight-forward to compare deforested biomass across models.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fDeforestToProduct", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fFireAll": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux into Atmosphere Due to CO2 Emission from Fire Including All Sources [kgC m-2 s-1]", 
            "comment": "From all sources,  Including natural, anthropogenic and Land-use change. Only total fire emissions can be compared to observations.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fFireAll", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fFireNat": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_natural_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux into Atmosphere Due to CO2 Emission from Natural Fire [kgC m-2 s-1]", 
            "comment": "CO2 emissions from natural fires", 
            "dimensions": "longitude latitude time", 
            "out_name": "fFireNat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fHarvestToAtmos": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_crop_harvesting", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Harvested Biomass That Goes Straight into Atmosphere as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "any harvested carbon that is assumed to decompose immediately into the atmosphere is reported here", 
            "dimensions": "longitude latitude time", 
            "out_name": "fHarvestToAtmos", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fHarvestToProduct": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_into_forestry_and_agricultural_products_due_to_crop_harvesting", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Harvested Biomass That Goes into Product Pool", 
            "comment": "be it food or wood harvest, any carbon that is subsequently stored is reported here", 
            "dimensions": "longitude latitude time", 
            "out_name": "fHarvestToProduct", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fLitterFire": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_litter_in_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux from Litter, CWD or any non-Living Pool into Atmosphere Due to CO2 Emission from All Fire [kgC m-2 s-1]", 
            "comment": "Required for unambiguous separation of vegetation and soil + litter turnover times, since total fire flux draws from both sources", 
            "dimensions": "longitude latitude time", 
            "out_name": "fLitterFire", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fLuc": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_anthropogenic_land_use_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Carbon Mass Flux into Atmosphere Due to Land-Use Change [kgC m-2 s-1]", 
            "comment": "Carbon mass flux per unit area into atmosphere due to human changes to land (excluding forest regrowth) accounting possibly for different time-scales related to fate of the wood, for example.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fLuc", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fLulccAtmLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_anthropogenic_land_use_or_land_cover_change_excluding_forestry_and_agricultural_products", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Transferred Directly to Atmosphere Due to any Land-Use or Land-Cover Change Activities [kgC m-2 s-1]", 
            "comment": "This annual mean flux refers to the transfer of carbon directly to the atmosphere due to any land-use or land-cover change activities.  Include carbon transferred due to deforestation or agricultural directly into atmosphere, and  emissions form anthropogenic pools into atmosphere", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "fLulccAtmLut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fLulccProductLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "carbon_mass_flux_into_forestry_and_agricultural_products_due_to_anthropogenic_land_use_or_land_cover_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Harvested Due to Land-Use or Land-Cover Change Process That Enters Anthropogenic Product Pools on Tile", 
            "comment": "This annual mean flux refers to the transfer of carbon primarily through harvesting land use into anthropogenic product pools, e.g.,deforestation or wood harvesting from primary or secondary lands, food harvesting on croplands, harvesting (grazing) by animals on pastures.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "fLulccProductLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fLulccResidueLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "carbon_mass_flux_into_litter_and_soil_due_to_anthropogenic_land_use_or_land_cover_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Transferred to Soil or Litter Pools Due to Land-Use or Land-Cover Change Processes on Tile", 
            "comment": "This annual mean flux refers to the transfer of carbon into soil or litter pools due to any land use or land-cover change activities", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "fLulccResidueLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fN2O": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_nitrous_oxide_expressed_as_nitrogen_out_of_vegetation_and_litter_and_soil", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Land N2O Flux", 
            "comment": "Surface upward flux of nitrous oxide (N2O) from vegetation (any living plants e.g. trees, shrubs, grass), litter (dead plant material in or above the soil), soil.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fN2O", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNAnthDisturb": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_atmosphere_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_anthropogenic_emission", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass Flux out of Land Due to any Human Activity", 
            "comment": "will require some careful definition to make sure we capture everything - any human activity that releases nitrogen from land  instead of into product pool goes here. E.g. Deforestation fire, harvest assumed to decompose straight away, grazing...", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNAnthDisturb", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNLandToOcean": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_into_sea_from_rivers", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Lateral Transfer of Nitrogen out of Grid Cell That Eventually Goes into Ocean", 
            "comment": "leached nitrogen etc that goes into run off or river routing and finds its way into ocean should be reported here.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNLandToOcean", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNLitterSoil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "nitrogen_mass_flux_into_soil_from_litter", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Mass Flux from Litter to Soil", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Litter' is dead plant material in or above the soil.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNLitterSoil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNOx": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_nox_expressed_as_nitrogen_out_of_vegetation_and_litter_and_soil", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Land NOx Flux", 
            "comment": "The surface called 'surface' means the lower boundary of the atmosphere. 'Upward' indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. 'Nox' means a combination of two radical species containing nitrogen and oxygen NO+NO2. 'Vegetation' means any living plants e.g. trees, shrubs, grass. 'Litter' is dead plant material in or above the soil.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNOx", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNProduct": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "nitrogen_mass_flux_into_forestry_and_agricultural_products_due_to_anthropogenic_land_use_or_land_cover_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Deforested or Harvested Biomass as a Result of Anthropogenic Land-Use or Change", 
            "comment": "When land use change results in deforestation of natural vegetation (trees or grasslands) then natural biomass is removed. The treatment of deforested biomass differs significantly across models, but it should be straight-forward to compare deforested biomass across models.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNProduct", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNVegLitter": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "nitrogen_mass_flux_into_litter_from_vegetation", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Mass Flux from Vegetation to Litter", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Litter' is dead plant material in or above the soil. 'Vegetation' means any living plants e.g. trees, shrubs, grass.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNVegLitter", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNVegSoil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "nitrogen_mass_flux_into_soil_from_vegetation_excluding_litter", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Mass Flux from Vegetation Directly to Soil", 
            "comment": "In some models part of nitrogen (e.g., root exudate) can go directly into the soil pool without entering litter.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNVegSoil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNdep": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "minus_tendency_of_atmosphere_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_deposition", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Dry and Wet Deposition of Reactive Nitrogen onto Land", 
            "comment": "Surface deposition rate of nitrogen.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNdep", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNfert": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_soil_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_fertilization", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Added for Cropland Fertilisation (Artificial and Manure)", 
            "comment": "Total Nitrogen added for cropland fertilisation (artificial and manure). Relative to total land area of a grid cell, not relative to agricultural area", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNfert", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNgas": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Lost to the Atmosphere (Sum of NHx, NOx, N2O, N2)", 
            "comment": "Total flux of Nitrogen from the land into the atmosphere.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNgas", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNgasFire": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_due_to_emission_from_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Lost to the Atmosphere (Including NHx, NOx, N2O, N2) from Fire", 
            "comment": "Flux of Nitrogen from the land into the atmosphere due to fire", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNgasFire", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNgasNonFire": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_due_to_all_land_processes_excluding_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Lost to the Atmosphere (Including NHx, NOx, N2O, N2) from All Processes Except Fire", 
            "comment": "Flux of Nitrogen from the land into the atmosphere due to all processes other than fire", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNgasNonFire", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNleach": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_out_of_soil_due_to_leaching_and_runoff", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Loss to Leaching or Runoff (Sum of Ammonium, Nitrite and Nitrate)", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. The specification of a physical process by the phrase 'due_to_' process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. 'Leaching' means the loss of water soluble chemical species from soil. Runoff is the liquid water which drains from land. If not specified, 'runoff' refers to the sum of surface runoff and subsurface drainage.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNleach", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNloss": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_out_of_vegetation_and_litter_and_soil", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen Lost (Including NHx, NOx, N2O, N2 and Leaching)", 
            "comment": "Not all models split losses into gaseous and leaching", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNloss", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNnetmin": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_out_of_litter_and_soil_due_to_immobilisation_and_remineralization", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Nitrogen Release from Soil and Litter as the Outcome of Nitrogen Immobilisation and Gross Mineralisation", 
            "comment": "Loss of soil nitrogen through remineralization and immobilisation. Remineralization is the degradation of organic matter into inorganic forms of carbon, nitrogen, phosphorus and other micronutrients, which consumes oxygen and releases energy. Immobilisation of nitrogen refers to retention of nitrogen by micro-organisms under certain conditions, making it unavailable for plants.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNnetmin", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fNup": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_vegetation_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_fixation", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Plant Nitrogen Uptake (Sum of Ammonium and Nitrate) Irrespective of the Source of Nitrogen", 
            "comment": "The uptake of nitrogen by fixation: nitrogen fixation means the uptake of nitrogen gas directly from the atmosphere. ", 
            "dimensions": "longitude latitude time", 
            "out_name": "fNup", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fProductDecomp": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_atmosphere_mass_content_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_forestry_and_agricultural_products", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Decomposition out of Product Pools to CO2 in Atmosphere as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Flux of CO2 from product pools into the atmosphere. Examples of 'forestry and agricultural products' are paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock. Models that simulate land use changes have one or more pools of carbon that represent these products in order to conserve carbon and allow its eventual release into the atmosphere, for example, when the products decompose in landfill sites.", 
            "dimensions": "longitude latitude time", 
            "out_name": "fProductDecomp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fProductDecompLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "tendency_of_atmosphere_mass_content_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_forestry_and_agricultural_products", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Carbon Mass Flux from Wood and Agricultural Product Pools on Land Use Tile into Atmosphere [kgC m-2 s-1]", 
            "comment": "Flux of CO2 from product pools into the atmosphere. Examples of 'forestry and agricultural products' are paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock. Models that simulate land use changes have one or more pools of carbon that represent these products in order to conserve carbon and allow its eventual release into the atmosphere, for example, when the products decompose in landfill sites. Produce this variable i  a model has explicit anthropogenic product pools by land use tile", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "fProductDecompLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fVegFire": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_vegetation_in_fires", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux from Vegetation into Atmosphere Due to CO2 Emission from All Fire [kgC m-2 s-1]", 
            "comment": "Required for unambiguous separation of vegetation and soil + litter turnover times, since total fire flux draws from both sources", 
            "dimensions": "longitude latitude time", 
            "out_name": "fVegFire", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fVegLitterMortality": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_into_litter_from_vegetation_due_to_mortality", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Carbon Mass Flux from Vegetation to Litter as a Result of Mortality", 
            "comment": "needed to separate changing vegetation C turnover times resulting from changing allocation versus changing mortality", 
            "dimensions": "longitude latitude time", 
            "out_name": "fVegLitterMortality", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fVegLitterSenescence": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_into_litter_from_vegetation_due_to_senescence", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Carbon Mass Flux from Vegetation to Litter as a Result of Leaf, Branch, and Root Senescence", 
            "comment": "needed to separate changing vegetation C turnover times resulting from changing allocation versus changing mortality", 
            "dimensions": "longitude latitude time", 
            "out_name": "fVegLitterSenescence", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fVegSoilMortality": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_into_soil_from_vegetation_due_to_mortality", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Carbon Mass Flux from Vegetation to Soil as a Result of Mortality", 
            "comment": "needed to separate changing vegetation C turnover times resulting from changing allocation versus changing mortality", 
            "dimensions": "longitude latitude time", 
            "out_name": "fVegSoilMortality", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fVegSoilSenescence": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_flux_of_carbon_into_soil_from_vegetation_due_to_senescence", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Carbon Mass Flux from Vegetation to Soil as a Result of Leaf, Branch, and Root Senescence", 
            "comment": "needed to separate changing vegetation C turnover times resulting from changing allocation versus changing mortality", 
            "dimensions": "longitude latitude time", 
            "out_name": "fVegSoilSenescence", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fahLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_heat_flux_due_to_anthropogenic_energy_consumption", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Anthropogenic Heat Flux Generated from non-Renewable Human Primary Energy Consumption", 
            "comment": "Anthropogenic heat flux generated from non-renewable human primary energy consumption, including energy use by vehicles, commercial and residential buildings, industry, and power plants.  Primary energy refers to energy in natural resources, fossil and nonfossil, before conversion into other forms, such as electricity.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "fahLut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fg14co2": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "surface_downward_mass_flux_of_14C_dioxide_abiotic_analogue_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Surface Downward Mass Flux of Carbon-14 as 14CO2 [kgC m-2 s-1]", 
            "comment": "Gas exchange flux of carbon-14 as CO2 (positive into ocean)", 
            "dimensions": "longitude latitude time", 
            "out_name": "fg14co2", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "flandice": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "water_flux_into_sea_water_from_land_ice", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Water Flux into Sea Water from Land Ice", 
            "comment": "Computed as the water flux into the ocean due to land ice (runoff water from surface and base of land ice or melt from base of ice shelf or vertical ice front) into the ocean divided by the area ocean portion of the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "flandice", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "flashrate": {
            "frequency": "mon", 
            "modeling_realm": "atmosChem", 
            "standard_name": "frequency_of_lightning_flashes_per_unit_area", 
            "units": "km-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Lightning Flash Rate", 
            "comment": "proposed name: lightning_flash_rate (units to be interpreted as 'counts km-2 s-1)", 
            "dimensions": "longitude latitude time", 
            "out_name": "flashrate", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "fracLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Percentage of Grid Cell for Each Land-Use Tile", 
            "comment": "End of year values (not annual mean); note that percentage should be reported as percentage of land grid cell (example: frac_lnd = 0.5, frac_ocn = 0.5, frac_crop_lnd = 0.2 (of land portion of grid cell), then frac_lut(crop) = 0.5*0.2 = 0.1)", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "fracLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "gppGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "gross_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Gross Primary Production on Grass Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total GPP of grass in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "gppGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "gppLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "gross_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Gross Primary Production on Land-Use Tile as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "The rate of synthesis of biomass from inorganic precursors by autotrophs ('producers') expressed as the mass of carbon which it contains. For example, photosynthesis in plants or phytoplankton. The producers also respire some of this biomass and the difference is referred to as the net primary production. Reported on land-use tiles.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "gppLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "gppShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "gross_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Gross Primary Production on Shrub Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total GPP of shrubs in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "gppShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "gppTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "gross_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Gross Primary Production on Tree Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total GPP of trees in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "gppTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "gppc13": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "gross_primary_productivity_of_biomass_expressed_as_13C", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon-13 Mass Flux out of Atmosphere Due to Gross Primary Production on Land [kgC m-2 s-1]", 
            "comment": "The rate of synthesis of carbon-13 in biomass from inorganic precursors by autotrophs ('producers') expressed as the mass of carbon which it contains. For example, photosynthesis in plants or phytoplankton. The producers also respire some of this biomass and the difference is referred to as the net primary production. ", 
            "dimensions": "longitude latitude time", 
            "out_name": "gppc13", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "gppc14": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "gross_primary_productivity_of_biomass_expressed_as_14C", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon-14 Mass Flux out of Atmosphere Due to Gross Primary Production on Land [kgC m-2 s-1]", 
            "comment": "The rate of synthesis of carbon-14 in biomass from inorganic precursors by autotrophs ('producers') expressed as the mass of carbon which it contains. For example, photosynthesis in plants or phytoplankton. The producers also respire some of this biomass and the difference is referred to as the net primary production. ", 
            "dimensions": "longitude latitude time", 
            "out_name": "gppc14", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "grassFracC3": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "C3 Natural Grass Area Percentage", 
            "comment": "Percentage of entire grid cell covered by C3 natural grass.", 
            "dimensions": "longitude latitude time typec3natg", 
            "out_name": "grassFracC3", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "grassFracC4": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "C4 Natural Grass Area Percentage", 
            "comment": "Percentage of entire grid cell covered by C4 natural grass.", 
            "dimensions": "longitude latitude time typec4natg", 
            "out_name": "grassFracC4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "grplmxrat27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_fraction_of_graupel_in_air", 
            "units": "1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Graupel Mixing Ratio", 
            "comment": "Graupel mixing ratio", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "grplmxrat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hflsLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_latent_heat_flux", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Latent Heat Flux on Land-Use Tile", 
            "comment": "The surface called 'surface' means the lower boundary of the atmosphere. 'Upward' indicates a vector component which is positive when directed upward (negative downward). The surface latent heat flux is the exchange of heat between the surface and the air on account of evaporation (including sublimation). In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "hflsLut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hfssLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_sensible_heat_flux", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Sensible Heat Flux on Land-Use Tile", 
            "comment": "Upward sensible heat flux on land use tiles. The surface sensible heat flux, also called turbulent heat flux, is the exchange of heat between the surface and the air by motion of air.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "hfssLut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hursminCrop": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "relative_humidity", 
            "units": "%", 
            "cell_methods": "area: mean where crops time: minimum within days time: mean over days", 
            "cell_measures": "area: areacella", 
            "long_name": "Daily Minimum Near-Surface Relative Humidity over Crop Tile", 
            "comment": "The relative humidity with respect to liquid water for T> 0 C, and with respect to ice for T<0 C.", 
            "dimensions": "longitude latitude time height2m", 
            "out_name": "hursminCrop", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hus": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "specific_humidity", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Specific Humidity", 
            "comment": "Specific humidity is the mass fraction of water vapor in (moist) air.", 
            "dimensions": "longitude latitude plev7h time", 
            "out_name": "hus", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hus27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "specific_humidity", 
            "units": "1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Specific Humidity", 
            "comment": "Specific humidity is the mass fraction of water vapor in (moist) air.", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "hus", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hussLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "specific_humidity", 
            "units": "1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Near-Surface Specific Humidity on Land-Use Tile", 
            "comment": "Normally, the specific humidity should be reported at the 2 meter height", 
            "dimensions": "longitude latitude landUse time height2m", 
            "out_name": "hussLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "intuadse": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "eastward_atmosphere_dry_static_energy_transport_across_unit_distance", 
            "units": "MJ m-1 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Vertically Integrated Eastward Dry Statice Energy Transport", 
            "comment": "Vertically integrated eastward dry static energy transport (cp.T +zg).v (Mass_weighted_vertical integral of the product of eastward wind by dry static_energy per mass unit)", 
            "dimensions": "longitude latitude time", 
            "out_name": "intuadse", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "intuaw": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "eastward_atmosphere_water_transport_across_unit_distance", 
            "units": "kg m-1 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Vertically Integrated Eastward Moisture Transport", 
            "comment": "Vertically integrated Eastward moisture transport (Mass weighted vertical integral of the product of eastward wind by total water mass per unit mass)", 
            "dimensions": "longitude latitude time", 
            "out_name": "intuaw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "intvadse": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "northward_atmosphere_dry_static_energy_transport_across_unit_distance", 
            "units": "MJ m-1 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Vertically Integrated Northward Dry Static Energy Transport", 
            "comment": "Vertically integrated northward dry static energy transport (cp.T +zg).v (Mass_weighted_vertical integral of the product of northward wind by dry static_energy per mass unit)", 
            "dimensions": "longitude latitude time", 
            "out_name": "intvadse", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "intvaw": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "northward_atmosphere_water_transport_across_unit_distance", 
            "units": "kg m-1 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Vertically Integrated Northward Moisture Transport", 
            "comment": "Vertically integrated Northward moisture transport (Mass_weighted_vertical integral of the product of northward wind by total water mass per unit mass)", 
            "dimensions": "longitude latitude time", 
            "out_name": "intvaw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "irrLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_downward_mass_flux_of_water_due_to_irrigation", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Irrigation Flux Including any Irrigation for Crops, Trees, Pasture, or Urban Lawns", 
            "comment": "Mass flux of water due to irrigation.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "irrLut", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "jpdftaureicemodis": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "MODIS Joint Distribution of Optical Thickness and Particle Size, Ice", 
            "comment": "Joint probability distribution function, giving probability of cloud as a function of optical thickness and particle size, as measured by MODIS. For cloud ice particles.", 
            "dimensions": "longitude latitude effectRadIc tau time", 
            "out_name": "jpdftaureicemodis", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "jpdftaureliqmodis": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "MODIS Optical Thickness-Particle Size Joint Distribution, Liquid", 
            "comment": "Joint probability distribution function, giving probability of cloud as a function of optical thickness and particle size, as measured by MODIS. For liquid cloud particles.", 
            "dimensions": "longitude latitude effectRadLi tau time", 
            "out_name": "jpdftaureliqmodis", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "laiLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "leaf_area_index", 
            "units": "1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Leaf Area Index on Land-Use Tile", 
            "comment": "A ratio obtained by dividing the total upper leaf surface area of vegetation by the (horizontal) surface area of the land on which it grows.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "laiLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "loaddust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_mass_content_of_dust_dry_aerosol_particles", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Load of Dust", 
            "comment": "The total dry mass of dust aerosol particles per unit area.", 
            "dimensions": "longitude latitude time", 
            "out_name": "loaddust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "loadso4": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_mass_content_of_sulfate_dry_aerosol_particles", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Load of SO4", 
            "comment": "The total dry mass of sulfate aerosol particles per unit area.", 
            "dimensions": "longitude latitude time", 
            "out_name": "loadso4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "loadss": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_mass_content_of_sea_salt_dry_aerosol_particles", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Load of Sea-Salt Aerosol", 
            "comment": "The total dry mass of sea salt aerosol particles per unit area.", 
            "dimensions": "longitude latitude time", 
            "out_name": "loadss", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "lwsrfasdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_net_downward_longwave_dust_ambient_aerosol_particles_direct_radiative_effect", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "All-Sky Surface Longwave Radiative Flux Due to Dust", 
            "comment": "The direct radiative effect refers to the instantaneous radiative impact on the Earth's energy balance, excluding secondary effects such as changes in cloud cover.", 
            "dimensions": "longitude latitude time", 
            "out_name": "lwsrfasdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "lwsrfcsdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_net_downward_longwave_dust_ambient_aerosol_particles_direct_radiative_effect_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Clear-Sky Surface Longwave Radiative Flux Due to Dust", 
            "comment": "The direct radiative effect refers to the instantaneous radiative impact on the Earth's energy balance, excluding secondary effects such as changes in cloud cover. Calculating in clear-sky conditions.", 
            "dimensions": "longitude latitude time", 
            "out_name": "lwsrfcsdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "lwtoaasdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_instantaneous_longwave_forcing", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA All-Sky Longwave Radiative Forcing Due to Dust", 
            "comment": "Instantaneous forcing is the radiative flux change caused instantaneously by an imposed change in radiative forcing agent (greenhouse gases, aerosol, solar radiation, etc.).", 
            "dimensions": "longitude latitude time", 
            "out_name": "lwtoaasdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "lwtoacsaer": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_instantaneous_longwave_forcing", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA Clear-Sky Longwave Radiative Forcing Due to Aerosols", 
            "comment": "Instantaneous forcing is the radiative flux change caused instantaneously by an imposed change in radiative forcing agent (greenhouse gases, aerosol, solar radiation, etc.).", 
            "dimensions": "longitude latitude time", 
            "out_name": "lwtoacsaer", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "lwtoacsdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_longwave_dust_ambient_aerosol_particles_direct_radiative_effect_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA Clear-Sky Longwave Radiative Forcing Due to Dust", 
            "comment": "The direct radiative effect refers to the instantaneous radiative impact on the Earth's energy balance, excluding secondary effects such as changes in cloud cover.", 
            "dimensions": "longitude latitude time", 
            "out_name": "lwtoacsdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "md": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_emission", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Wet Diameter Mode Coarse Insoluble", 
            "comment": "Emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). ", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "md", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mmrno3": {
            "frequency": "mon", 
            "modeling_realm": "aerosol", 
            "standard_name": "mass_fraction_of_nitrate_dry_aerosol_particles_in_air", 
            "units": "kg kg-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "NO3 Aerosol Mass Mixing Ratio", 
            "comment": "Dry mass fraction of nitrate aerosol particles in air.", 
            "dimensions": "longitude latitude time", 
            "out_name": "mmrno3", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrlso": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "liquid_water_content_of_soil_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Soil Liquid Water Content", 
            "comment": "The mass (summed over all all layers) of liquid water.", 
            "dimensions": "longitude latitude time", 
            "out_name": "mrlso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrroLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "runoff_flux", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Runoff from Land-Use Tile", 
            "comment": "the total runoff (including 'drainage' through the base of the soil model) leaving the land use tile portion of the grid cell", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "mrroLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrsfl": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "frozen_water_content_of_soil_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Frozen Water Content of Soil Layer", 
            "comment": "in each soil layer, the mass of water in ice phase.  Reported as 'missing' for grid cells occupied entirely by 'sea'", 
            "dimensions": "longitude latitude sdepth time", 
            "out_name": "mrsfl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrsll": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "liquid_water_content_of_soil_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Liquid Water Content of Soil Layer", 
            "comment": "in each soil layer, the mass of water in liquid phase.  Reported as 'missing' for grid cells occupied entirely by 'sea'", 
            "dimensions": "longitude latitude sdepth time", 
            "out_name": "mrsll", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrsoLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_water_in_soil", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Soil Moisture", 
            "comment": "'Water' means water in all phases. 'Content' indicates a quantity per unit area. The mass content of water in soil refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including 'content_of_soil_layer' are used.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "mrsoLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrsol": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_water_in_soil_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Water Content of Soil Layer", 
            "comment": "in each soil layer, the mass of water in all phases, including ice.  Reported as 'missing' for grid cells occupied entirely by 'sea'", 
            "dimensions": "longitude latitude sdepth time", 
            "out_name": "mrsol", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrsosLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_water_in_soil_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Moisture in Upper Portion of Soil Column of Land-Use Tile", 
            "comment": "the mass of water in all phases in a thin surface layer; integrate over uppermost 10cm", 
            "dimensions": "longitude latitude landUse time sdepth1", 
            "out_name": "mrsosLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mrtws": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "land_water_amount", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Terrestrial Water Storage", 
            "comment": "Mass of water in all phases and in all components including soil, canopy, vegetation, ice sheets, rivers and ground water.", 
            "dimensions": "longitude latitude time", 
            "out_name": "mrtws", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nLand": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "mass_content_of_nitrogen_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Nitrogen in All Terrestrial Nitrogen Pools", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nLand", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nLeaf": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "leaf_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Leaves", 
            "comment": "'Content' indicates a quantity per unit area.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nLeaf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nLitter": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "litter_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Litter Pool", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nLitter", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nLitterCwd": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "wood_debris_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Coarse Woody Debris", 
            "comment": "'Content' indicates a quantity per unit area. 'Wood debris' means dead organic matter composed of coarse wood. It is distinct from fine litter. The precise distinction between 'fine' and 'coarse' is model dependent. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nLitterCwd", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nLitterSubSurf": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "subsurface_litter_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Below-Ground Litter (non CWD)", 
            "comment": "'Content' indicates a quantity per unit area. 'Litter' is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between 'fine' and 'coarse' is model dependent. 'Subsurface litter' means the part of the litter mixed within the soil below the surface. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nLitterSubSurf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nLitterSurf": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_litter_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Above-Ground Litter (non CWD)", 
            "comment": "'Content' indicates a quantity per unit area. 'Litter' is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between 'fine' and 'coarse' is model dependent. 'Surface litter' means the part of the litter resting above the soil surface. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nLitterSurf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nMineral": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mineral Nitrogen in the Soil", 
            "comment": "SUM of ammonium, nitrite, nitrate, etc over all soil layers", 
            "dimensions": "longitude latitude time", 
            "out_name": "nMineral", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nMineralNH4": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_inorganic_ammonium_expressed_as_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mineral Ammonium in the Soil", 
            "comment": "SUM of ammonium over all soil layers", 
            "dimensions": "longitude latitude time", 
            "out_name": "nMineralNH4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nMineralNO3": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mineral Nitrate in the Soil", 
            "comment": "SUM of nitrate over all soil layers", 
            "dimensions": "longitude latitude time", 
            "out_name": "nMineralNO3", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nOther": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "miscellaneous_living_matter_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Vegetation Components Other than Leaves, Stem and Root", 
            "comment": "E.g. fruits, seeds, etc.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nOther", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nProduct": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "nitrogen_mass_content_of_forestry_and_agricultural_products", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Products of Land-Use Change", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nProduct", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nRoot": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "root_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Roots", 
            "comment": "including fine and coarse roots.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nRoot", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nSoil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Soil Pool", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nSoil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nStem": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "stem_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Stem", 
            "comment": "including sapwood and hardwood.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nStem", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nVeg": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "vegetation_mass_content_of_nitrogen", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Nitrogen Mass in Vegetation", 
            "comment": "Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction.", 
            "dimensions": "longitude latitude time", 
            "out_name": "nVeg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "necbLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Carbon Mass Flux into Land-Use Tile [kgC m-2 s-1]", 
            "comment": "Computed as npp minus heterotrophic respiration minus fire minus C leaching minus harvesting/clearing. Positive rate is into the land, negative rate is from the land.  Do not include fluxes from anthropogenic product pools to atmosphere", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "necbLut", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nep": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes_excluding_anthropogenic_land_use_change", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Carbon Mass Flux out of Atmosphere Due to Net Ecosystem Productivity on Land [kgC m-2 s-1]", 
            "comment": "Natural flux of CO2 (expressed as a mass flux of carbon) from the atmosphere to the land calculated as the difference between uptake associated will photosynthesis and the release of CO2 from the sum of plant and soil respiration and fire.  Positive flux is into the land.  Emissions from natural fires and human ignition fires as calculated by the fire module of the dynamic vegetation model, but excluding any CO2 flux from fire included in fLuc (CO2 Flux to Atmosphere from Land Use Change).", 
            "dimensions": "longitude latitude time", 
            "out_name": "nep", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "netAtmosLandC13Flux": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_13C_due_to_all_land_processes", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Mass Flux of 13C Between Atmosphere and Land (Positive into Land) as a Result of All Processes [kgC m-2 s-1]", 
            "comment": "Flux of carbon 31as carbon dioxide into the land. This flux should be reproducible by differencing the sum of all carbon pools (cVeg, cLitter, cSoil, and cProducts or equivalently cLand) from one time step to the next, except in the case of lateral transfer of carbon due to harvest, riverine transport of dissolved organic and/or inorganic carbon, or any other process (in which case the lateral_carbon_transfer_over_land term, see below, will be zero data).-", 
            "dimensions": "longitude latitude time", 
            "out_name": "netAtmosLandC13Flux", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "netAtmosLandC14Flux": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_14C_due_to_all_land_processes", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Mass Flux of 14C Between Atmosphere and Land (Positive into Land) as a Result of All Processes [kgC m-2 s-1]", 
            "comment": "Flux of carbon-14 as carbon dioxide into the land. This flux should be reproducible by differencing the sum of all carbon pools (cVeg, cLitter, cSoil, and cProducts or equivalently cLand) from one time step to the next, except in the case of lateral transfer of carbon due to harvest, riverine transport of dissolved organic and/or inorganic carbon, or any other process (in which case the lateral_carbon_transfer_over_land term, see below, will be zero data).", 
            "dimensions": "longitude latitude time", 
            "out_name": "netAtmosLandC14Flux", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "netAtmosLandCO2Flux": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Flux of CO2 Between Atmosphere and Land (Positive into Land) as a Result of All Processes [kgC m-2 s-1]", 
            "comment": "Flux of carbon as carbon dioxide into the land. This flux should be reproducible by differencing the sum of all carbon pools (cVeg, cLitter, cSoil, and cProducts or equivalently cLand) from one time step to the next, except in the case of lateral transfer of carbon due to harvest, riverine transport of dissolved organic and/or inorganic carbon, or any other process (in which case the lateral_carbon_transfer_over_land term, see below, will be zero data).", 
            "dimensions": "longitude latitude time", 
            "out_name": "netAtmosLandCO2Flux", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nppGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "net_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Primary Production on Grass Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total NPP of grass in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "nppGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nppLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "net_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Primary Production on Land-Use Tile as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "'Production of carbon' means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ('producers'), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. 'Productivity' means production per unit area. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "nppLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nppOther": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "net_primary_productivity_of_biomass_expressed_as_carbon_accumulated_in_miscellaneous_living_matter", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Primary Production Allocated to Other Pools (not Leaves Stem or Roots) as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "added for completeness with npp_root", 
            "dimensions": "longitude latitude time", 
            "out_name": "nppOther", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nppShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "net_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Primary Production on Shrub Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total NPP of shrubs in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "nppShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nppStem": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "net_primary_productivity_of_biomass_expressed_as_carbon_accumulated_in_stems", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Primary Production Allocated to Stem as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "added for completeness with npp_root", 
            "dimensions": "longitude latitude time", 
            "out_name": "nppStem", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nppTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "net_primary_productivity_of_biomass_expressed_as_carbon", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Primary Production on Tree Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total NPP of trees in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "nppTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "nwdFracLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Non-Woody Vegetation Percentage Cover", 
            "comment": "Percentage of land use tile tile that is non-woody vegetation ( e.g. herbaceous crops)", 
            "dimensions": "longitude latitude landUse time typenwd", 
            "out_name": "nwdFracLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontempdiff": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_dianeutral_mixing", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Conservative Temperature Expressed as Heat Content Due to Parameterized Dianeutral Mixing", 
            "comment": "Tendency of heat content for a grid cell from parameterized dianeutral mixing. Reported only for models that use conservative temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ocontempdiff", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontempmint": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "integral_wrt_depth_of_product_of_conservative_temperature_and_sea_water_density", 
            "units": "degC kg m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Depth Integral of Product of Sea Water Density and Conservative Temperature", 
            "comment": "Full column sum of density*cell thickness*conservative temperature. If the model is Boussinesq, then use Boussinesq reference density for the density factor.", 
            "dimensions": "longitude latitude time", 
            "out_name": "ocontempmint", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontemppadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_eddy_advection", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Conservative Temperature Expressed as Heat Content Due to Parameterized Eddy Advection", 
            "comment": "Tendency of heat content for a grid cell from parameterized eddy advection (any form of eddy advection). Reported only for models that use conservative temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ocontemppadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontemppmdiff": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_eddy_diffusion", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Conservative Temperature Expressed as Heat Content Due to Parameterized Mesoscale Diffusion", 
            "comment": "Tendency of heat content for a grid cell from parameterized mesoscale eddy diffusion. Reported only for models that use conservative temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ocontemppmdiff", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontemppsmadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_submesoscale_eddy_advection", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Conservative Temperature Expressed as Heat Content Due to Parameterized Submesoscale Advection", 
            "comment": "Tendency of heat content for a grid cell from parameterized submesoscale eddy advection. Reported only for models that use conservative temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ocontemppsmadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontemprmadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_residual_mean_advection", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Conservative Temperature Expressed as Heat Content Due to Residual Mean Advection", 
            "comment": "Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). The phrase 'residual mean advection' refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ocontemprmadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ocontemptend": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_conservative_temperature_expressed_as_heat_content", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Conservative Temperature Expressed as Heat Content", 
            "comment": "Tendency of heat content for a grid cell from all processes. Reported only for models that use conservative temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ocontemptend", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "od443dust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_optical_thickness_due_to_dust_ambient_aerosol_particles", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Optical Thickness at 443nm Dust", 
            "comment": "Total aerosol AOD due to dust aerosol at a wavelength of 443 nanometres.", 
            "dimensions": "longitude latitude time", 
            "out_name": "od443dust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "od550aerso": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "stratosphere_optical_thickness_due_to_ambient_aerosol_particles", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Stratospheric Optical Depth at 550nm (All Aerosols) 2D-Field (Stratosphere Only)", 
            "comment": "From tropopause to stratopause as defined by the model", 
            "dimensions": "longitude latitude time lambda550nm", 
            "out_name": "od550aerso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "od550so4so": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "stratosphere_optical_thickness_due_to_sulfate_ambient_aerosol_particles", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Stratospheric Optical Depth at 550nm (Sulphate Only) 2D-Field (Stratosphere Only)", 
            "comment": "Stratospheric aerosol AOD due to sulfate aerosol at a wavelength of 550 nanometres.", 
            "dimensions": "longitude latitude time lambda550nm", 
            "out_name": "od550so4so", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "od865dust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_optical_thickness_due_to_dust_ambient_aerosol_particles", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Dust Optical Depth at 865nm", 
            "comment": "Total aerosol AOD due to dust aerosol at a wavelength of 865 nanometres.", 
            "dimensions": "longitude latitude time", 
            "out_name": "od865dust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottempdiff": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_dianeutral_mixing", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Dianeutral Mixing", 
            "comment": "Tendency of heat content for a grid cell from parameterized dianeutral mixing. Reported only for models that use potential temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "opottempdiff", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottempmint": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "integral_wrt_depth_of_product_of_potential_temperature_and_sea_water_density", 
            "units": "degC kg m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Integral with Respect to Depth of Product of Sea Water Density and Potential Temperature", 
            "comment": "Integral over the full ocean depth of the product of sea water density and potential temperature.", 
            "dimensions": "longitude latitude time", 
            "out_name": "opottempmint", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottemppadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_eddy_advection", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Eddy Advection", 
            "comment": "Tendency of heat content for a grid cell from parameterized eddy advection (any form of eddy advection). Reported only for models that use potential temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "opottemppadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottemppmdiff": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_eddy_diffusion", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Mesoscale Diffusion", 
            "comment": "Tendency of heat content for a grid cell from parameterized mesoscale eddy diffusion. Reported only for models that use potential temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "opottemppmdiff", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottemppsmadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_submesoscale_eddy_advection", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Submesoscale Advection", 
            "comment": "Tendency of heat content for a grid cell from parameterized submesoscale eddy advection. Reported only for models that use potential temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "opottemppsmadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottemprmadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_residual_mean_advection", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Residual Mean Advection", 
            "comment": "The phrase 'residual mean advection' refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "opottemprmadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "opottemptend": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_potential_temperature_expressed_as_heat_content", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Potential Temperature Expressed as Heat Content", 
            "comment": "Tendency of heat content for a grid cell from all processes. Reported only for models that use potential temperature as prognostic field.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "opottemptend", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "orog": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_altitude", 
            "units": "m", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Altitude", 
            "comment": "The surface called 'surface' means the lower boundary of the atmosphere. Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level.", 
            "dimensions": "longitude latitude time", 
            "out_name": "orog", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "osaltdiff": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_dianeutral_mixing", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Salinity Expressed as Salt Content Due to Parameterized Dianeutral Mixing", 
            "comment": "Tendency of salt content for a grid cell from parameterized dianeutral mixing.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "osaltdiff", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "osaltpadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_eddy_advection", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Salinity Expressed as Salt Content Due to Parameterized Eddy Advection", 
            "comment": "Tendency of salt content for a grid cell from parameterized eddy advection (any form of eddy advection).", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "osaltpadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "osaltpmdiff": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_mesoscale_eddy_diffusion", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Salinity Expressed as Salt Content Due to Parameterized Mesoscale Diffusion", 
            "comment": "Tendency of salt content for a grid cell from parameterized mesoscale eddy diffusion.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "osaltpmdiff", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "osaltpsmadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_submesoscale_eddy_advection", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Salinity Expressed as Salt Content Due to Parameterized Submesoscale Advection", 
            "comment": "Tendency of salt content for a grid cell from parameterized submesoscale eddy advection.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "osaltpsmadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "osaltrmadvect": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_residual_mean_advection", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Salinity Expressed as Salt Content Due to Residual Mean Advection", 
            "comment": "The phrase 'residual mean advection' refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "osaltrmadvect", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "osalttend": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "tendency_of_sea_water_salinity_expressed_as_salt_content", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Tendency of Sea Water Salinity Expressed as Salt Content", 
            "comment": "Tendency of salt content for a grid cell from all processes.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "osalttend", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pabigthetao": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_added_conservative_temperature", 
            "units": "degC", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sea Water Added Conservative Temperature", 
            "comment": "A passive tracer in an ocean model whose surface flux does not come from the atmosphere but is imposed externally upon the simulated climate system. The surface flux is expressed as a heat flux and converted to a passive tracer increment as if it were a heat flux being added to conservative temperature. The passive tracer is transported within the ocean as if it were conservative temperature. The passive tracer is zero in the control climate of the model. ", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "pabigthetao", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "parasolRefl": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_bidirectional_reflectance", 
            "units": "1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "PARASOL Reflectance", 
            "comment": "Simulated reflectance from PARASOL as seen at the top of the atmosphere for 5 solar zenith angles. Valid only over ocean and for one viewing direction (viewing zenith angle of 30 degrees and relative azimuth angle 320 degrees).", 
            "dimensions": "longitude latitude sza5 time", 
            "out_name": "parasolRefl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pastureFracC3": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "C3 Pasture Area Percentage", 
            "comment": "Percentage of entire grid cell covered by C3 pasture", 
            "dimensions": "longitude latitude time typec3pastures", 
            "out_name": "pastureFracC3", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pastureFracC4": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "C4 Pasture Area Percentage", 
            "comment": "Percentage of entire grid cell covered by C4 pasture", 
            "dimensions": "longitude latitude time typec4pastures", 
            "out_name": "pastureFracC4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pathetao": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_added_potential_temperature", 
            "units": "degC", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sea Water Additional Potential Temperature", 
            "comment": "The quantity with standard name sea_water_added_potential_temperature is a passive tracer in an ocean model whose surface flux does not come from the atmosphere but is imposed externally upon the simulated climate system. The surface flux is expressed as a heat flux and converted to a passive tracer increment as if it were a heat flux being added to potential temperature. The passive tracer is transported within the ocean as if it were potential temperature. The passive tracer is zero in the control climate of the model. The passive tracer records added heat, as described for the CMIP6 FAFMIP experiment (doi:10.5194/gmd-9-3993-2016), following earlier ideas. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "pathetao", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ppcalc": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_calcareous_phytoplankton", 
            "units": "mol m-3 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Net Primary Mole Productivity of Carbon by Calcareous Phytoplankton", 
            "comment": "Primary (organic carbon) production by the calcite-producing phytoplankton component alone", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ppcalc", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ppdiat": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_diatoms", 
            "units": "mol m-3 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Net Primary Organic Carbon Production by Diatoms", 
            "comment": "Primary (organic carbon) production by the diatom component alone", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ppdiat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ppdiaz": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_diazotrophic_phytoplankton", 
            "units": "mol m-3 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Net Primary Mole Productivity of Carbon by Diazotrophs", 
            "comment": "Primary (organic carbon) production by the diazotrophic phytoplankton component alone", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ppdiaz", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ppmisc": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_miscellaneous_phytoplankton", 
            "units": "mol m-3 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Net Primary Organic Carbon Production by Other Phytoplankton", 
            "comment": "Primary (organic carbon) production by other phytoplankton components alone", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "ppmisc", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pppico": {
            "frequency": "mon", 
            "modeling_realm": "ocnBgchem", 
            "standard_name": "tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_picophytoplankton", 
            "units": "mol m-3 s-1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Net Primary Mole Productivity of Carbon by Picophytoplankton", 
            "comment": "Primary (organic carbon) production by the picophytoplankton (<2 um) component alone", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "pppico", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pr17O": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "precipitation_flux_containing_17O", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation Flux of Water Containing Oxygen-17 (H2 17O)", 
            "comment": "Precipitation mass flux of water molecules that contain the oxygen-17 isotope (H2 17O), including solid and liquid phases.", 
            "dimensions": "longitude latitude time", 
            "out_name": "pr17O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pr18O": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "precipitation_flux_containing_18O", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation Flux of Water Containing Oxygen-18 (H2 18O)", 
            "comment": "Precipitation mass flux of water molecules that contain the oxygen-18 isotope (H2 18O), including solid and liquid phases.", 
            "dimensions": "longitude latitude time", 
            "out_name": "pr18O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pr2h": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "precipitation_flux_containing_single_2H", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation Flux of Water Containing Deuterium (1H 2H O)", 
            "comment": "Precipitation mass flux of water molecules that contain one atom of the hydrogen-2 isotope (1H 2H O), including solid and liquid phases.", 
            "dimensions": "longitude latitude time", 
            "out_name": "pr2h", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prCrop": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "precipitation_flux", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where crops (comment: mask=cropFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation over Crop Tile", 
            "comment": "includes both liquid and solid phases", 
            "dimensions": "longitude latitude time", 
            "out_name": "prCrop", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prbigthetao": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_redistributed_conservative_temperature", 
            "units": "degC", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sea Water Redistributed Conservative Temperature", 
            "comment": "A passive tracer in an ocean model which is subject to an externally imposed perturbative surface heat flux. The passive tracer is initialised to the conservative temperature in the control climate before the perturbation is imposed. Its surface flux is the heat flux from the atmosphere, not including the imposed perturbation, and is converted to a passive tracer increment as if it were being added to conservative temperature. The passive tracer is transported within the ocean as if it were conservative temperature. ", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "prbigthetao", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prhmax": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "precipitation_flux", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean time: mean within hours time: maximum over hours", 
            "cell_measures": "area: areacella", 
            "long_name": "Maximum Hourly Precipitation Rate", 
            "comment": "In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.", 
            "dimensions": "longitude latitude time", 
            "out_name": "prhmax", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prsn17O": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "solid_precipitation_flux_containing_17O", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation Flux of Snow and Ice Containing Oxygen-17 (H2 17O)", 
            "comment": "Precipitation mass flux of water molecules that contain the oxygen-17 isotope (H2 17O), including solid phase only.", 
            "dimensions": "longitude latitude time", 
            "out_name": "prsn17O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prsn18O": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "solid_precipitation_flux_containing_18O", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation Flux of Snow and Ice Containing Oxygen-18 (H2 18O)", 
            "comment": "Precipitation mass flux of water molecules that contain the oxygen-18 isotope (H2 18O), including solid phase only.", 
            "dimensions": "longitude latitude time", 
            "out_name": "prsn18O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prsn2h": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "solid_precipitation_flux_containing_single_2H", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Precipitation Flux of Snow and Ice Containing Deuterium (1H 2H O)", 
            "comment": "Precipitation mass flux of water molecules that contain one atom of the hydrogen-2 isotope (1H 2H O), including solid phase only.", 
            "dimensions": "longitude latitude time", 
            "out_name": "prsn2h", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prthetao": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_redistributed_potential_temperature", 
            "units": "degC", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Sea Water Redistributed Potential Temperature", 
            "comment": "A passive tracer in an ocean model which is subject to an externally imposed perturbative surface heat flux. The passive tracer is initialised to the potential temperature in the control climate before the perturbation is imposed. Its surface flux is the heat flux from the atmosphere, not including the imposed perturbation, and is converted to a passive tracer increment as if it were being added to potential temperature. The passive tracer is transported within the ocean as if it were potential temperature. ", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "prthetao", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prw17O": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_content_of_water_vapor_containing_17O_in_atmosphere_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of Water Vapor Containing Oxygen-17 (H2 17O) in Layer", 
            "comment": "Water vapor path for water molecules that contain oxygen-17 (H2 17O)", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "prw17O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prw18O": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "mass_content_of_water_vapor_containing_18O_in_atmosphere_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Mass of Water Vapor Containing Oxygen-18 (H2 18O) in Layer", 
            "comment": "Water vapor path for water molecules that contain oxygen-18 (H2 18O)", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "prw18O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "prw2H": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_content_of_water_vapor_containing_single_2H_in_atmosphere_layer", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass of Water Containing Deuterium (1H 2H O) in Layer", 
            "comment": "Water vapor path for water molecules that contain one atom of the hydrogen-2 isotope (1H 2H O)", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "prw2H", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ps": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_air_pressure", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Air Pressure", 
            "comment": "surface pressure (not mean sea-level pressure), 2-D field to calculate the 3-D pressure field from hybrid coordinates", 
            "dimensions": "longitude latitude time", 
            "out_name": "ps", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Autotrophic Respiration on Grass Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total RA of grass in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "raGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raLeaf": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_leaves", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Respiration from Leaves as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "added for completeness with Ra_root", 
            "dimensions": "longitude latitude time", 
            "out_name": "raLeaf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Autotrophic Respiration on Land-Use Tile as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Carbon mass flux per unit area into atmosphere due to autotrophic respiration on land (respiration by producers) [see rh for heterotrophic production]. Calculated on land-use tiles.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "raLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raOther": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_miscellaneous_living_matter", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Respiration from Other Pools (not Leaves Stem or Roots) as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "added for completeness with Ra_root", 
            "dimensions": "longitude latitude time", 
            "out_name": "raOther", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raRoot": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_roots", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Respiration from Roots as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total autotrophic respiration from all belowground plant parts.  This has benchmarking value because the sum of Rh and root respiration can be compared to observations of total soil respiration.", 
            "dimensions": "longitude latitude time", 
            "out_name": "raRoot", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Autotrophic Respiration on Shrub Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total RA of shrubs in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "raShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raStem": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_stems", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Respiration from Stem as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "added for completeness with Ra_root", 
            "dimensions": "longitude latitude time", 
            "out_name": "raStem", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "raTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Autotrophic Respiration on Tree Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total RA of trees in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "raTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rac13": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_13C_due_to_plant_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon-13 Mass Flux into Atmosphere Due to Autotrophic (Plant) Respiration on Land [kgC m-2 s-1]", 
            "comment": "Flux of carbon-13 into the atmosphere due to plant respiration. Plant respiration is the sum of respiration by parts of plants both above and below the soil. It is assumed that all the respired carbon dioxide is emitted to the atmosphere. ", 
            "dimensions": "longitude latitude time", 
            "out_name": "rac13", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rac14": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_14C_due_to_plant_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon-14 Mass Flux into Atmosphere Due to Autotrophic (Plant) Respiration on Land [kgC m-2 s-1]", 
            "comment": "Flux of carbon-14 into the atmosphere due to plant respiration. Plant respiration is the sum of respiration by parts of plants both above and below the soil. It is assumed that all the respired carbon dioxide is emitted to the atmosphere. ", 
            "dimensions": "longitude latitude time", 
            "out_name": "rac14", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rainmxrat27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_fraction_of_liquid_precipitation_in_air", 
            "units": "1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass Fraction of Rain in Air", 
            "comment": "Rain mixing ratio", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "rainmxrat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "reffclic": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "effective_radius_of_convective_cloud_ice_particles", 
            "units": "m", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Hydrometeor Effective Radius of Convective Cloud Ice", 
            "comment": "This is defined as the in-cloud ratio of the third moment over the second moment of the particle size distribution (obtained by considering only the cloudy portion of the grid cell).", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "reffclic", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "reffclis": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "effective_radius_of_stratiform_cloud_ice_particles", 
            "units": "m", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Hydrometeor Effective Radius of Stratiform Cloud Ice", 
            "comment": "This is defined as the in-cloud ratio of the third moment over the second moment of the particle size distribution (obtained by considering only the cloudy portion of the grid cell).", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "reffclis", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "reffclwc": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "effective_radius_of_convective_cloud_liquid_water_particles", 
            "units": "m", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Convective Cloud Liquid Droplet Effective Radius", 
            "comment": "Droplets are liquid.  The effective radius is defined as the ratio of the third moment over the second moment of the particle size distribution and the time-mean should be calculated, weighting the individual samples by the cloudy fraction of the grid cell.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "reffclwc", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "reffclws": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "effective_radius_of_stratiform_cloud_liquid_water_particles", 
            "units": "m", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Stratiform Cloud Liquid Droplet Effective Radius", 
            "comment": "Droplets are liquid.  The effective radius is defined as the ratio of the third moment over the second moment of the particle size distribution and the time-mean should be calculated, weighting the individual samples by the cloudy fraction of the grid cell.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "reffclws", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_heterotrophic_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Heterotrophic Respiration on Grass Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total RH of grass in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhLitter": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_due_to_heterotrophic_respiration_in_litter", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux into Atmosphere Due to Heterotrophic Respiration from Litter on Land", 
            "comment": "Needed to calculate litter bulk turnover time. Includes respiration from CWD as well.", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhLitter", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_heterotrophic_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Heterotrophic Respiration on Land-Use Tile as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Carbon mass flux per unit area into atmosphere due to heterotrophic respiration on land (respiration by consumers), calculated on land-use tiles.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "rhLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_heterotrophic_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Heterotrophic Respiration on Shrub Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total RH of shrubs in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhSoil": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_due_to_heterotrophic_respiration_in_soil", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon Mass Flux into Atmosphere Due to Heterotrophic Respiration from Soil on Land", 
            "comment": "Needed to calculate soil bulk turnover time", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhSoil", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_heterotrophic_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Heterotrophic Respiration on Tree Tiles as Carbon Mass Flux [kgC m-2 s-1]", 
            "comment": "Total RH of trees in the grid cell", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhc13": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_13C_due_to_heterotrophic_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon-13 Mass Flux into Atmosphere Due to Heterotrophic Respiration on Land [kgC m-2 s-1]", 
            "comment": "Heterotrophic respiration is respiration by heterotrophs ('consumers'), which are organisms (including animals and decomposers) that consume other organisms or dead organic material, rather than synthesising organic material from inorganic precursors using energy from the environment (especially sunlight) as autotrophs ('producers') do. Heterotrophic respiration goes on within both the soil and litter pools.", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhc13", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rhc14": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_carbon_dioxide_expressed_as_14C_due_to_heterotrophic_respiration", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Carbon-14 Mass Flux into Atmosphere Due to Heterotrophic Respiration on Land [kgC m-2 s-1]", 
            "comment": "Heterotrophic respiration is respiration by heterotrophs ('consumers'), which are organisms (including animals and decomposers) that consume other organisms or dead organic material, rather than synthesising organic material from inorganic precursors using energy from the environment (especially sunlight) as autotrophs ('producers') do. Heterotrophic respiration goes on within both the soil and litter pools.", 
            "dimensions": "longitude latitude time", 
            "out_name": "rhc14", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rls": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_net_downward_longwave_flux", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Longwave Surface Radiation", 
            "comment": "Net longwave surface radiation", 
            "dimensions": "longitude latitude time", 
            "out_name": "rls", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rlusLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upwelling_longwave_flux_in_air", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Upwelling Longwave on Land-Use Tile", 
            "comment": "The surface called 'surface' means the lower boundary of the atmosphere. 'longwave' means longwave radiation. Upwelling radiation is radiation from below. It does not mean 'net upward'. When thought of as being incident on a surface, a radiative flux is sometimes called 'irradiance'. In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called 'vector irradiance'. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "rlusLut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsdoabsorb": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "net_rate_of_absorption_of_shortwave_energy_in_ocean_layer", 
            "units": "W m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Net Rate of Absorption of Shortwave Energy in Ocean Layer", 
            "comment": "'shortwave' means shortwave radiation. 'Layer' means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Net absorbed radiation is the difference between absorbed and emitted radiation.", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "rsdoabsorb", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsdscsdiff": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_diffuse_downwelling_shortwave_flux_in_air_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Diffuse Downwelling Clear Sky Shortwave Radiation", 
            "comment": "Surface downwelling solar irradiance from diffuse radiation for UV calculations in clear sky conditions", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsdscsdiff", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsdsdiff": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_diffuse_downwelling_shortwave_flux_in_air", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Diffuse Downwelling Shortwave Radiation", 
            "comment": "Surface downwelling solar irradiance from diffuse radiation for UV calculations.", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsdsdiff", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rss": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_net_downward_shortwave_flux", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Net Shortwave Surface Radiation", 
            "comment": "Net downward shortwave radiation at the surface", 
            "dimensions": "longitude latitude time", 
            "out_name": "rss", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsusLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upwelling_shortwave_flux_in_air", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Upwelling Shortwave on Land-Use Tile", 
            "comment": "The surface called 'surface' means the lower boundary of the atmosphere. 'shortwave' means shortwave radiation. Upwelling radiation is radiation from below. It does not mean 'net upward'. When thought of as being incident on a surface, a radiative flux is sometimes called 'irradiance'. In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called 'vector irradiance'. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "rsusLut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sconcdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_concentration_of_dust_dry_aerosol_particles_in_air", 
            "units": "kg m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Concentration of Dust", 
            "comment": "mass concentration of dust dry aerosol in air in model lowest layer", 
            "dimensions": "longitude latitude time", 
            "out_name": "sconcdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sconcso4": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_concentration_of_sulfate_dry_aerosol_particles_in_air", 
            "units": "kg m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Concentration of SO4", 
            "comment": "mass concentration of sulfate dry aerosol in air in model lowest layer.", 
            "dimensions": "longitude latitude time", 
            "out_name": "sconcso4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sconcss": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_concentration_of_sea_salt_dry_aerosol_particles_in_air", 
            "units": "kg m-3", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Concentration of Sea-Salt Aerosol", 
            "comment": "mass concentration of sea-salt dry aerosol in air in model lowest layer", 
            "dimensions": "longitude latitude time", 
            "out_name": "sconcss", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sedustCI": {
            "frequency": "mon", 
            "modeling_realm": "aerosol", 
            "standard_name": "minus_tendency_of_atmosphere_mass_content_of_insoluble_dust_dry_aerosol_particles_due_to_deposition", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Sedimentation Flux of Dust Mode Coarse Insoluble", 
            "comment": "Dry mass deposition rate of dust aerosol.", 
            "dimensions": "longitude latitude time", 
            "out_name": "sedustCI", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sfcWindmax": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "wind_speed", 
            "units": "m s-1", 
            "cell_methods": "area: mean time: maximum within days time: mean over days", 
            "cell_measures": "area: areacella", 
            "long_name": "Daily Maximum Near-Surface Wind Speed", 
            "comment": "Daily maximum near-surface (usually, 10 meters) wind speed.", 
            "dimensions": "longitude latitude time height10m", 
            "out_name": "sfcWindmax", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "snowmxrat27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_fraction_of_snow_in_air", 
            "units": "1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass Fraction of Snow in Air", 
            "comment": "Snow mixing ratio", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "snowmxrat", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "somint": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "integral_wrt_depth_of_product_of_salinity_and_sea_water_density", 
            "units": "g m-2", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Depth Integral of Product of Sea Water Density and Prognostic Salinity", 
            "comment": "Full column sum of density*cell thickness*prognostic salinity. If the model is Boussinesq, then use Boussinesq reference density for the density factor.", 
            "dimensions": "longitude latitude time", 
            "out_name": "somint", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sw17O": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "isotope_ratio_of_17O_to_16O_in_sea_water_excluding_solutes_and_solids", 
            "units": "1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Isotopic Ratio of Oxygen-17 in Sea Water", 
            "comment": "Ratio of abundance of oxygen-17 (17O) atoms to oxygen-16 (16O) atoms in sea water", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "sw17O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sw18O": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "isotope_ratio_of_18O_to_16O_in_sea_water_excluding_solutes_and_solids", 
            "units": "1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Isotopic Ratio of Oxygen-18 in Sea Water", 
            "comment": "Ratio of abundance of oxygen-18 (18O) atoms to oxygen-16 (16O) atoms in sea water", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "sw18O", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sw2H": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "isotope_ratio_of_2H_to_1H_in_sea_water_excluding_solutes_and_solids", 
            "units": "1", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello volume: volcello", 
            "long_name": "Isotopic Ratio of Deuterium in Sea Water", 
            "comment": "Ratio of abundance of hydrogen-2 (2H) atoms to hydrogen-1 (1H) atoms in sea water", 
            "dimensions": "longitude latitude olevel time", 
            "out_name": "sw2H", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "sweLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "lwe_thickness_of_surface_snow_amount", 
            "units": "m", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Snow Water Equivalent on Land-Use Tile", 
            "comment": "The surface called 'surface' means the lower boundary of the atmosphere. 'lwe' means liquid water equivalent. 'Amount' means mass per unit area. The construction lwe_thickness_of_X_amount or _content means the vertical extent of a layer of liquid water having the same mass per unit area. Surface amount refers to the amount on the ground, excluding that on the plant or vegetation canopy.", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "sweLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "swsrfasdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_net_downward_shortwave_dust_ambient_aerosol_particles_direct_radiative_effect", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "All-Sky Surface Shortwave Radiative Flux Due to Dust", 
            "comment": "The direct radiative effect refers to the instantaneous radiative impact on the Earth's energy balance, excluding secondary effects such as changes in cloud cover.", 
            "dimensions": "longitude latitude time", 
            "out_name": "swsrfasdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "swsrfcsdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_net_downward_shortwave_dust_ambient_aerosol_particles_direct_radiative_effect_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Clear-Sky Surface Shortwave Radiative Flux Due to Dust", 
            "comment": "The direct radiative effect refers to the instantaneous radiative impact on the Earth's energy balance, excluding secondary effects such as changes in cloud cover. Calculated in clear-sky conditions.", 
            "dimensions": "longitude latitude time", 
            "out_name": "swsrfcsdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "swtoaasdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_instantaneous_shortwave_forcing", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "All-Sky Shortwave Flux Due to Dust at Toa", 
            "comment": "Instantaneous forcing is the radiative flux change caused instantaneously by an imposed change in radiative forcing agent (greenhouse gases, aerosol, solar radiation, etc.).", 
            "dimensions": "longitude latitude time", 
            "out_name": "swtoaasdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "swtoacsdust": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_instantaneous_shortwave_forcing", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Clear Sky Shortwave Flux Due to Dust at Toa", 
            "comment": "Instantaneous forcing is the radiative flux change caused instantaneously by an imposed change in radiative forcing agent (greenhouse gases, aerosol, solar radiation, etc.).", 
            "dimensions": "longitude latitude time", 
            "out_name": "swtoacsdust", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "t2": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "square_of_air_temperature", 
            "units": "K2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mean-Squared Air Temperature", 
            "comment": "Air temperature squared", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "t2", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "t20d": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "depth_of_isosurface_of_sea_water_potential_temperature", 
            "units": "m", 
            "cell_methods": "area: mean where sea time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Depth of 20 degree Celsius Isotherm", 
            "comment": "This quantity, sometimes called the 'isotherm depth', is the depth (if it exists) at which the sea water potential temperature equals some specified value. This value should be specified in a scalar coordinate variable. Depth is the vertical distance below the surface. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.", 
            "dimensions": "longitude latitude time", 
            "out_name": "t20d", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tSoilPools": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "soil_pool_carbon_decay_rate", 
            "units": "s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Turnover Rate of Each Model Soil Carbon Pool", 
            "comment": "defined as 1/(turnover time) for each soil pool. Use the same pools reported under cSoilPools", 
            "dimensions": "longitude latitude soilpools time", 
            "out_name": "tSoilPools", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ta27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "air_temperature", 
            "units": "K", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Air Temperature", 
            "comment": "Air Temperature", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "ta", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tasLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "air_temperature", 
            "units": "K", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Near-Surface Air Temperature on Land Use Tile", 
            "comment": "Air temperature is the bulk temperature of the air, not the surface (skin) temperature.", 
            "dimensions": "longitude latitude landUse time height2m", 
            "out_name": "tasLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tasmaxCrop": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "air_temperature", 
            "units": "K", 
            "cell_methods": "area: mean where crops time: maximum within days time: mean over days", 
            "cell_measures": "area: areacella", 
            "long_name": "Daily Maximum Near-Surface Air Temperature over Crop Tile", 
            "comment": "maximum near-surface (usually, 2 meter) air temperature (add cell_method attribute 'time: max')", 
            "dimensions": "longitude latitude time height2m", 
            "out_name": "tasmaxCrop", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tasminCrop": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "air_temperature", 
            "units": "K", 
            "cell_methods": "area: mean where crops time: minimum within days time: mean over days", 
            "cell_measures": "area: areacella", 
            "long_name": "Daily Minimum Near-Surface Air Temperature over Crop Tile", 
            "comment": "minimum near-surface (usually, 2 meter) air temperature (add cell_method attribute 'time: min')", 
            "dimensions": "longitude latitude time height2m", 
            "out_name": "tasminCrop", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tdps": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "dew_point_temperature", 
            "units": "K", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "2m Dewpoint Temperature", 
            "comment": "Dew point temperature is the temperature at which a parcel of air reaches saturation upon being cooled at constant pressure and specific humidity.", 
            "dimensions": "longitude latitude time", 
            "out_name": "tdps", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "thetaot": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_potential_temperature", 
            "units": "degC", 
            "cell_methods": "area: depth: time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Vertically Averaged Sea Water Potential Temperature", 
            "comment": "Vertical average of the sea water potential temperature through the whole ocean depth", 
            "dimensions": "longitude latitude time", 
            "out_name": "thetaot", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "thetaot2000": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_potential_temperature", 
            "units": "degC", 
            "cell_methods": "area: depth: time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Depth Average Potential Temperature of Upper 2000m", 
            "comment": "Upper 2000m, 2D field", 
            "dimensions": "longitude latitude time depth2000m", 
            "out_name": "thetaot2000", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "thetaot300": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_potential_temperature", 
            "units": "degC", 
            "cell_methods": "area: depth: time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Depth Average Potential Temperature of Upper 300m", 
            "comment": "Upper 300m, 2D field", 
            "dimensions": "longitude latitude time depth300m", 
            "out_name": "thetaot300", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "thetaot700": {
            "frequency": "mon", 
            "modeling_realm": "ocean", 
            "standard_name": "sea_water_potential_temperature", 
            "units": "degC", 
            "cell_methods": "area: depth: time: mean", 
            "cell_measures": "area: areacello", 
            "long_name": "Depth Average Potential Temperature of Upper 700m", 
            "comment": "Upper 700m, 2D field", 
            "dimensions": "longitude latitude time depth700m", 
            "out_name": "thetaot700", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tnhuspbl": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_specific_humidity_due_to_boundary_layer_mixing", 
            "units": "s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Specific Humidity Due to Boundary Layer Mixing", 
            "comment": "Includes all boundary layer terms including diffusive terms.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tnhuspbl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tnhusscp": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_specific_humidity_due_to_stratiform_cloud_and_precipitation", 
            "units": "s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Specific Humidity Due to Stratiform Clouds and Precipitation", 
            "comment": "The phrase 'tendency_of_X' means derivative of X with respect to time. 'Specific' means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air. The specification of a physical process by the phrase 'due_to_' process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. A variable with the standard name of tendency_of_specific_humidity_due_to_stratiform_cloud_and_precipitation should contain the effects of all processes which convert stratiform clouds and precipitation to or from water vapor. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes).", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tnhusscp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntd": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_air_temperature_due_to_diffusion", 
            "units": "K s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Numerical Diffusion", 
            "comment": "This includes any horizontal or vertical numerical temperature diffusion not associated with the parametrized moist physics or the resolved dynamics.  For example, any vertical diffusion which is part of the boundary layer mixing scheme should be excluded, as should any diffusion which is included in the terms from the resolved dynamics.   This term is required to check the closure of the temperature budget.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tntd", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntmp27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_air_temperature_due_to_model_physics", 
            "units": "K s-1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Model Physics", 
            "comment": "Tendency of air temperature due to model physics. This includes sources and sinks from parametrized physics (e.g. radiation, convection, boundary layer, stratiform condensation/evaporation, etc.). It excludes sources and sinks from resolved dynamics and numerical diffusion not associated with parametrized physics.  For example, any vertical diffusion which is part of the boundary layer mixing scheme should be included, while numerical diffusion applied in addition to physics or resolved dynamics should be excluded.  This term is required to check the closure of the heat budget.", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "tntmp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntpbl": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_air_temperature_due_to_boundary_layer_mixing", 
            "units": "K s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Boundary Layer Mixing", 
            "comment": "Includes all boundary layer terms including diffusive terms.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tntpbl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntrl27": {
            "frequency": "mon", 
            "modeling_realm": "aerosol", 
            "standard_name": "tendency_of_air_temperature_due_to_longwave_heating", 
            "units": "K s-1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Longwave Radiative Heating", 
            "comment": "Tendency of air temperature due to longwave radiative heating", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "tntrl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntrlcs": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_air_temperature_due_to_longwave_heating_assuming_clear_sky", 
            "units": "K s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Clear Sky Longwave Radiative Heating", 
            "comment": "Tendency of Air Temperature due to Clear Sky Longwave Radiative Heating", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tntrlcs", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntrs27": {
            "frequency": "mon", 
            "modeling_realm": "aerosol", 
            "standard_name": "tendency_of_air_temperature_due_to_shortwave_heating", 
            "units": "K s-1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Shortwave Radiative Heating", 
            "comment": "Tendency of air temperature due to shortwave radiative heating", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "tntrs", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntrscs": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_air_temperature_due_to_shortwave_heating_assuming_clear_sky", 
            "units": "K s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Clear Sky Shortwave Radiative Heating", 
            "comment": "Tendency of Air Temperature due to Clear Sky Shortwave Radiative Heating", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tntrscs", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tntscp": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_air_temperature_due_to_stratiform_cloud_and_precipitation", 
            "units": "K s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Tendency of Air Temperature Due to Stratiform Clouds and Precipitation", 
            "comment": "The phrase 'tendency_of_X' means derivative of X with respect to time. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The specification of a physical process by the phrase 'due_to_' process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. A variable with the standard name tendency_of_air_temperature_due_to_stratiform_cloud_and_precipitation should contain net latent heating effects of all processes which convert stratiform clouds and precipitation between water vapour, liquid or ice phases. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes).", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "tntscp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "treeFracBdlDcd": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Broadleaf Deciduous Tree Area Percentage", 
            "comment": "This is the percentage of the entire grid cell that is covered by broadleaf deciduous trees.", 
            "dimensions": "longitude latitude time typetreebd", 
            "out_name": "treeFracBdlDcd", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "treeFracBdlEvg": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Broadleaf Evergreen Tree Area Percentage", 
            "comment": "This is the percentage of the entire grid cell that is covered by broadleaf evergreen trees.", 
            "dimensions": "longitude latitude time typetreebe", 
            "out_name": "treeFracBdlEvg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "treeFracNdlDcd": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Needleleaf Deciduous Tree Area Percentage", 
            "comment": "This is the percentage of the entire grid cell that is covered by needleleaf deciduous trees.", 
            "dimensions": "longitude latitude time typetreend", 
            "out_name": "treeFracNdlDcd", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "treeFracNdlEvg": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Needleleaf Evergreen Tree Area Percentage", 
            "comment": "This is the percentage of the entire grid cell that is covered by needleleaf evergreen trees.", 
            "dimensions": "longitude latitude time typetreene", 
            "out_name": "treeFracNdlEvg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "tslsiLut": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_temperature", 
            "units": "K", 
            "cell_methods": "area: time: mean where sector", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Temperature on Landuse Tile", 
            "comment": "Surface temperature (i.e. temperature at which long-wave radiation emitted)", 
            "dimensions": "longitude latitude landUse time", 
            "out_name": "tslsiLut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "twap": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "product_of_lagrangian_tendency_of_air_pressure_and_air_temperature", 
            "units": "K Pa s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Product of Air Temperature and Omega", 
            "comment": "Product of air temperature and pressure tendency", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "twap", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "u2": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "square_of_eastward_wind", 
            "units": "m2 s-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mean-Squared Eastward Wind Speed", 
            "comment": "u*u", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "u2", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ua": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "eastward_wind", 
            "units": "m s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Eastward Wind", 
            "comment": "Zonal wind (positive in a eastward direction).", 
            "dimensions": "longitude latitude plev7h time", 
            "out_name": "ua", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ua27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "eastward_wind", 
            "units": "m s-1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Eastward Wind", 
            "comment": "Zonal wind (positive in a eastward direction).", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "ua", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "uqint": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "integral_wrt_height_of_product_of_eastward_wind_and_specific_humidity", 
            "units": "m2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Eastward Humidity Transport", 
            "comment": "Column integrated eastward wind times specific humidity", 
            "dimensions": "longitude latitude time", 
            "out_name": "uqint", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ut": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "product_of_eastward_wind_and_air_temperature", 
            "units": "K m s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Product of Air Temperature and Eastward Wind", 
            "comment": "Product of air temperature and eastward wind", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "ut", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "utendnogw": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_eastward_wind_due_to_nonorographic_gravity_wave_drag", 
            "units": "m s-2", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Eastward Acceleration Due to Non-Orographic Gravity Wave Drag", 
            "comment": "Tendency of the eastward wind by parameterized nonorographic gravity waves.", 
            "dimensions": "longitude latitude plev19 time", 
            "out_name": "utendnogw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "utendogw": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_eastward_wind_due_to_orographic_gravity_wave_drag", 
            "units": "m s-2", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Eastward Acceleration Due to Orographic Gravity Wave Drag", 
            "comment": "Tendency of the eastward wind by parameterized orographic gravity waves.", 
            "dimensions": "longitude latitude plev19 time", 
            "out_name": "utendogw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "uv": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "product_of_eastward_wind_and_northward_wind", 
            "units": "m2 s-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Product of Eastward Wind and Northward Wind", 
            "comment": "u*v", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "uv", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "uwap": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "product_of_eastward_wind_and_lagrangian_tendency_of_air_pressure", 
            "units": "Pa m s-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Product of Eastward Wind and Omega", 
            "comment": "u*omega", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "uwap", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "v2": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "square_of_northward_wind", 
            "units": "m2 s-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mean-Squared Northward Wind Speed", 
            "comment": "v*v", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "v2", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "va": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "northward_wind", 
            "units": "m s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Northward Wind", 
            "comment": "Meridional wind (positive in a northward direction).", 
            "dimensions": "longitude latitude plev7h time", 
            "out_name": "va", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "va27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "northward_wind", 
            "units": "m s-1", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Northward Wind", 
            "comment": "Meridional wind (positive in a northward direction).", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "va", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegFrac": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Total Vegetated Percentage Cover", 
            "comment": "Percentage of grid cell that is covered by vegetation.This SHOULD be the sum of tree, grass (natural and pasture), crop and shrub fractions.", 
            "dimensions": "longitude latitude time typeveg", 
            "out_name": "vegFrac", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegHeight": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "canopy_height", 
            "units": "m", 
            "cell_methods": "area: time: mean where vegetation (comment: mask=vegFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Height of the Vegetation Canopy", 
            "comment": "Vegetation height averaged over all vegetation types and over the vegetated fraction of a grid cell.", 
            "dimensions": "longitude latitude time", 
            "out_name": "vegHeight", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegHeightCrop": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "canopy_height", 
            "units": "m", 
            "cell_methods": "area: time: mean where crops (comment: mask=cropFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Height of Crops", 
            "comment": "Vegetation height averaged over the crop fraction of a grid cell.", 
            "dimensions": "longitude latitude time", 
            "out_name": "vegHeightCrop", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegHeightGrass": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "canopy_height", 
            "units": "m", 
            "cell_methods": "area: time: mean where natural_grasses (comment: mask=grassFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Height of Grass", 
            "comment": "Vegetation height averaged over the grass fraction of a grid cell.", 
            "dimensions": "longitude latitude time", 
            "out_name": "vegHeightGrass", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegHeightPasture": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "canopy_height", 
            "units": "m", 
            "cell_methods": "area: time: mean where pastures (comment: mask=pastureFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Height of Pastures", 
            "comment": "Vegetation height averaged over the pasture fraction of a grid cell.", 
            "dimensions": "longitude latitude time", 
            "out_name": "vegHeightPasture", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegHeightShrub": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "canopy_height", 
            "units": "m", 
            "cell_methods": "area: time: mean where shrubs (comment: mask=shrubFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Height of Shrubs", 
            "comment": "Vegetation height averaged over the shrub fraction of a grid cell.", 
            "dimensions": "longitude latitude time", 
            "out_name": "vegHeightShrub", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vegHeightTree": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "canopy_height", 
            "units": "m", 
            "cell_methods": "area: time: mean where trees (comment: mask=treeFrac)", 
            "cell_measures": "area: areacella", 
            "long_name": "Height of Trees", 
            "comment": "Vegetation height averaged over the tree fraction of a grid cell.", 
            "dimensions": "longitude latitude time", 
            "out_name": "vegHeightTree", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vqint": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "integral_wrt_height_of_product_of_northward_wind_and_specific_humidity", 
            "units": "m2 s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Northward Humidity Transport", 
            "comment": "Column integrated northward wind times specific humidity", 
            "dimensions": "longitude latitude time", 
            "out_name": "vqint", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vt": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "product_of_northward_wind_and_air_temperature", 
            "units": "K m s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Product of Air Temperature and Northward Wind", 
            "comment": "Product of air temperature and northward wind", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "vt", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vtendnogw": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_northward_wind_due_to_nonorographic_gravity_wave_drag", 
            "units": "m s-2", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Northward Acceleration Due to Non-Orographic Gravity Wave Drag", 
            "comment": "Tendency of the northward wind by parameterized nonorographic gravity waves.  (Note that CF name tables only have a general northward tendency for all gravity waves, and we need it separated by type.)", 
            "dimensions": "longitude latitude plev19 time", 
            "out_name": "vtendnogw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vtendogw": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "tendency_of_northward_wind_due_to_orographic_gravity_wave_drag", 
            "units": "m s-2", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Northward Acceleration Due to Orographic Gravity Wave Drag", 
            "comment": "Tendency of the northward wind by parameterized orographic gravity waves.  (Note that CF name tables only have a general northward tendency for all gravity waves, and we need it separated by type.)", 
            "dimensions": "longitude latitude plev19 time", 
            "out_name": "vtendogw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "vwap": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "product_of_northward_wind_and_lagrangian_tendency_of_air_pressure", 
            "units": "Pa m s-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Product of Northward Wind and Omega", 
            "comment": "v*omega", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "vwap", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wap": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "lagrangian_tendency_of_air_pressure", 
            "units": "Pa s-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Omega (=dp/dt)", 
            "comment": "Omega (vertical velocity in pressure coordinates, positive downwards)", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "wap", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wap2": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "square_of_lagrangian_tendency_of_air_pressure", 
            "units": "Pa2 s-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mean-Squared Vertical Velocity (Omega)", 
            "comment": "omega*omega", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "wap2", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wetlandCH4": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_net_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_processes", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Grid Averaged Methane Emissions from Wetlands", 
            "comment": "Net upward flux of methane (NH4) from wetlands (areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season). ", 
            "dimensions": "longitude latitude time", 
            "out_name": "wetlandCH4", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wetlandCH4cons": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_downward_mass_flux_of_methane_due_to_wetland_biological_consumption", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Grid Averaged Methane Consumption (Methanotrophy) from Wetlands", 
            "comment": "Biological consumption (methanotrophy) of methane (NH4) by wetlands (areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season). ", 
            "dimensions": "longitude latitude time", 
            "out_name": "wetlandCH4cons", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wetlandCH4prod": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_production", 
            "units": "kg m-2 s-1", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Grid Averaged Methane Production (Methanogenesis) from Wetlands", 
            "comment": "Biological emissions (methanogenesis) of methane (NH4) from wetlands (areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season). ", 
            "dimensions": "longitude latitude time", 
            "out_name": "wetlandCH4prod", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wetlandFrac": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "area_fraction", 
            "units": "%", 
            "cell_methods": "area: mean where land over all_area_types time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Wetland Percentage Cover", 
            "comment": "Percentage of grid cell covered by wetland. Report only one year if  fixed percentage is used, or time series if values are determined dynamically.", 
            "dimensions": "longitude latitude time typewetla", 
            "out_name": "wetlandFrac", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wtd": {
            "frequency": "mon", 
            "modeling_realm": "land", 
            "standard_name": "water_table_depth", 
            "units": "m", 
            "cell_methods": "area: mean where land time: mean", 
            "cell_measures": "area: areacellr", 
            "long_name": "Water Table Depth", 
            "comment": "Depth is the vertical distance below the surface. The water table is the surface below which the soil is saturated with water such that all pore spaces are filled.", 
            "dimensions": "longitude latitude time", 
            "out_name": "wtd", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "xgwdparam": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_eastward_stress_due_to_gravity_wave_drag", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Eastward Gravity Wave Drag", 
            "comment": "Parameterised x-component of gravity wave drag", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "xgwdparam", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ygwdparam": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_northward_stress_due_to_gravity_wave_drag", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Northward Gravity Wave Drag", 
            "comment": "Parameterised y- component of gravity wave drag", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "ygwdparam", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "zg27": {
            "frequency": "mon", 
            "modeling_realm": "atmos", 
            "standard_name": "geopotential_height", 
            "units": "m", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Geopotential Height", 
            "comment": "Geopotential is the sum of the specific gravitational potential energy relative to the geoid and the specific centripetal potential energy. Geopotential height is the geopotential divided by the standard acceleration due to gravity. It is numerically similar to the altitude (or geometric height) and not to the quantity with standard name height, which is relative to the surface.", 
            "dimensions": "longitude latitude plev27 time", 
            "out_name": "zg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }
    }
}
