{
    "Header": {
        "data_specs_version": "01.00.33", 
        "cmor_version": "3.5", 
        "table_id": "Table CFday", 
        "realm": "atmos", 
        "table_date": "18 November 2020", 
        "missing_value": "1e20", 
        "int_missing_value": "-999", 
        "product": "model-output", 
        "approx_interval": "1.00000", 
        "generic_levels": "alevel alevhalf", 
        "mip_era": "CMIP6", 
        "Conventions": "CF-1.7 CMIP-6.2"
    }, 
    "variable_entry": {
        "albisccp": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_albedo", 
            "units": "1", 
            "cell_methods": "area: time: mean where cloud", 
            "cell_measures": "area: areacella", 
            "long_name": "ISCCP Mean Cloud Albedo", 
            "comment": "ISCCP Mean Cloud Albedo. Time-means are weighted by the ISCCP Total Cloud Fraction {:cltisccp} - see  http://cfmip.metoffice.com/COSP.html", 
            "dimensions": "longitude latitude time", 
            "out_name": "albisccp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ccb": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_pressure_at_convective_cloud_base", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Air Pressure at Convective Cloud Base", 
            "comment": "Where convective cloud is present in the grid cell, the instantaneous cloud base altitude should be that of the bottom of the lowest level containing convective cloud. Missing data should be reported in the absence of convective cloud. The time mean should be calculated from these quantities averaging over occasions when convective cloud is present only, and should contain missing data for occasions when no convective cloud is present during the meaning period.", 
            "dimensions": "longitude latitude time", 
            "out_name": "ccb", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cct": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_pressure_at_convective_cloud_top", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Air Pressure at Convective Cloud Top", 
            "comment": "Where convective cloud is present in the grid cell, the instantaneous cloud top altitude should be that of the top of the highest level containing convective cloud. Missing data should be reported in the absence of convective cloud. The time mean should be calculated from these quantities averaging over occasions when convective cloud is present only, and should contain missing data for occasions when no convective cloud is present during the meaning period.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cct", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cl": {
            "frequency": "day", 
            "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", 
            "comment": "Percentage cloud cover, including both large-scale and convective cloud.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "cl", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clcalipso": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Percentage Cloud Cover", 
            "comment": "Percentage cloud cover in CALIPSO standard atmospheric layers.", 
            "dimensions": "longitude latitude alt40 time", 
            "out_name": "clcalipso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clhcalipso": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO High Level Cloud Area Percentage", 
            "comment": "Percentage cloud cover in layer centred on 220hPa", 
            "dimensions": "longitude latitude time p220", 
            "out_name": "clhcalipso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cli": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_fraction_of_cloud_ice_in_air", 
            "units": "kg kg-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass Fraction of Cloud Ice", 
            "comment": "Includes both large-scale and convective cloud. This is calculated as the mass of cloud ice in the grid cell divided by the mass of air (including the water in all phases) in the grid cell. It includes precipitating hydrometeors ONLY if the precipitating hydrometeors affect the calculation of radiative transfer in model.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "cli", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clisccp": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "ISCCP Cloud Area Percentage", 
            "comment": "Percentage cloud cover in optical depth categories.", 
            "dimensions": "longitude latitude plev7c tau time", 
            "out_name": "clisccp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clivi": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_mass_content_of_cloud_ice", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Ice Water Path", 
            "comment": "mass of ice water in the column divided by the area of the column (not just the area of the cloudy portion of the column). Includes precipitating frozen hydrometeors ONLY if the precipitating hydrometeor affects the calculation of radiative transfer in model.", 
            "dimensions": "longitude latitude time", 
            "out_name": "clivi", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cllcalipso": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Low Level Cloud Cover Percentage", 
            "comment": "Percentage cloud cover in layer centred on 840hPa", 
            "dimensions": "longitude latitude time p840", 
            "out_name": "cllcalipso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clmcalipso": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction_in_atmosphere_layer", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Mid Level Cloud Cover Percentage", 
            "comment": "Percentage cloud cover in layer centred on 560hPa", 
            "dimensions": "longitude latitude time p560", 
            "out_name": "clmcalipso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cltcalipso": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "CALIPSO Total Cloud Cover Percentage", 
            "comment": "Total cloud area fraction (reported as a percentage) for the whole atmospheric column, as seen by the  Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) instrument. Includes both large-scale and convective cloud.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cltcalipso", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "cltisccp": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "cloud_area_fraction", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "ISCCP Total Cloud Cover Percentage", 
            "comment": "Total cloud area fraction (reported as a percentage) for the whole atmospheric column, as seen by the International Satellite Cloud Climatology Project (ISCCP) analysis. Includes both large-scale and convective cloud.  (MODIS). Includes both large-scale and convective cloud.", 
            "dimensions": "longitude latitude time", 
            "out_name": "cltisccp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clw": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "mass_fraction_of_cloud_liquid_water_in_air", 
            "units": "kg kg-1", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Mass Fraction of Cloud Liquid Water", 
            "comment": "Includes both large-scale and convective cloud. Calculate as the mass of cloud liquid water in the grid cell divided by the mass of air (including the water in all phases) in the grid cells. Precipitating hydrometeors are included ONLY if the precipitating hydrometeors affect the calculation of radiative transfer in model.", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "clw", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "clwvi": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "atmosphere_mass_content_of_cloud_condensed_water", 
            "units": "kg m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Condensed Water Path", 
            "comment": "Mass of 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). Includes precipitating hydrometeors ONLY if the precipitating hydrometeors affect the calculation of radiative transfer in model.", 
            "dimensions": "longitude latitude time", 
            "out_name": "clwvi", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hur": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "relative_humidity", 
            "units": "%", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Relative Humidity", 
            "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 alevel time", 
            "out_name": "hur", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "hus": {
            "frequency": "day", 
            "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 alevel time", 
            "out_name": "hus", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "mc": {
            "frequency": "day", 
            "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": "Convective Mass Flux", 
            "comment": "The net mass flux should represent the difference between the updraft and downdraft components.  The flux is computed as the mass divided by the area of the grid cell.", 
            "dimensions": "longitude latitude alevhalf time", 
            "out_name": "mc", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pctisccp": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_pressure_at_cloud_top", 
            "units": "Pa", 
            "cell_methods": "area: time: mean where cloud", 
            "cell_measures": "area: areacella", 
            "long_name": "ISCCP Mean Cloud Top Pressure", 
            "comment": "ISCCP Mean Cloud Top Pressure. Time-means are weighted by the ISCCP Total Cloud Fraction {:cltisccp} - see  http://cfmip.metoffice.com/COSP.html", 
            "dimensions": "longitude latitude time", 
            "out_name": "pctisccp", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "pfull": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_pressure", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Pressure at Model Full-Levels", 
            "comment": "Air pressure on model levels", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "pfull", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "phalf": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_pressure", 
            "units": "Pa", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Pressure on Model Half-Levels", 
            "comment": "Air pressure on model half-levels", 
            "dimensions": "longitude latitude alevhalf time", 
            "out_name": "phalf", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ps": {
            "frequency": "day", 
            "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": ""
        }, 
        "rldscs": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_downwelling_longwave_flux_in_air_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Downwelling Clear-Sky Longwave Radiation", 
            "comment": "Surface downwelling clear-sky longwave radiation", 
            "dimensions": "longitude latitude time", 
            "out_name": "rldscs", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rlutcs": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_outgoing_longwave_flux_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA Outgoing Clear-Sky Longwave Radiation", 
            "comment": "Upwelling clear-sky longwave radiation at top of atmosphere", 
            "dimensions": "longitude latitude time", 
            "out_name": "rlutcs", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsdscs": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_downwelling_shortwave_flux_in_air_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Downwelling Clear-Sky Shortwave Radiation", 
            "comment": "Surface solar irradiance clear sky for UV calculations", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsdscs", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsdt": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_incoming_shortwave_flux", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA Incident Shortwave Radiation", 
            "comment": "Shortwave radiation incident at the top of the atmosphere", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsdt", 
            "type": "real", 
            "positive": "down", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsuscs": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "surface_upwelling_shortwave_flux_in_air_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Surface Upwelling Clear-Sky Shortwave Radiation", 
            "comment": "Surface Upwelling Clear-sky Shortwave Radiation", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsuscs", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsut": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_outgoing_shortwave_flux", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA Outgoing Shortwave Radiation", 
            "comment": "at the top of the atmosphere", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsut", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "rsutcs": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "toa_outgoing_shortwave_flux_assuming_clear_sky", 
            "units": "W m-2", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "TOA Outgoing Clear-Sky Shortwave Radiation", 
            "comment": "Calculated in the absence of clouds.", 
            "dimensions": "longitude latitude time", 
            "out_name": "rsutcs", 
            "type": "real", 
            "positive": "up", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ta": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_temperature", 
            "units": "K", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Air Temperature", 
            "comment": "Air Temperature", 
            "dimensions": "longitude latitude alevel time", 
            "out_name": "ta", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ta700": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "air_temperature", 
            "units": "K", 
            "cell_methods": "area: time: mean", 
            "cell_measures": "area: areacella", 
            "long_name": "Air Temperature", 
            "comment": "Air temperature at 700hPa", 
            "dimensions": "longitude latitude time p700", 
            "out_name": "ta700", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "ua": {
            "frequency": "day", 
            "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 alevel time", 
            "out_name": "ua", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "va": {
            "frequency": "day", 
            "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 alevel time", 
            "out_name": "va", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "wap": {
            "frequency": "day", 
            "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": ""
        }, 
        "wap500": {
            "frequency": "day", 
            "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": "Pressure Tendency", 
            "comment": "Omega (vertical velocity in pressure coordinates, positive downwards) at 500hPa level;", 
            "dimensions": "longitude latitude time p500", 
            "out_name": "wap500", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }, 
        "zg": {
            "frequency": "day", 
            "modeling_realm": "atmos", 
            "standard_name": "geopotential_height", 
            "units": "m", 
            "cell_methods": "area: 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 alevel time", 
            "out_name": "zg", 
            "type": "real", 
            "positive": "", 
            "valid_min": "", 
            "valid_max": "", 
            "ok_min_mean_abs": "", 
            "ok_max_mean_abs": ""
        }
    }
}
