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CDS parameter name

ESGF variable id

units

Standard name (CF)

Long name

Description

2m Near-surface air temperature

tas

K

air_temperature

Near-Surface Air Temperature

Temperature of air at 2m above the surface of land, sea or inland waters. 2m temperature is calculated by interpolating between the lowest model level and the Earth's surface, taking account of the atmospheric conditions.

Mean precipitation fluxPrecipitation

pr

kg m-2 s-1

precipitation_flux

Precipitation

The sum of liquid and frozen water, comprising rain and snow, that falls to the Earth's surface. It is the sum of large-scale precipitation and convective precipitation. This parameter does not include fog, dew or the precipitation that evaporates in the atmosphere before it lands at the surface of the Earth. This variable represents amount of water per unit area and time.

Mean sea Sea level pressure

psl

Pa

air_pressure_at_sea_level

Sea Level Pressure

The pressure (force per unit area) of the atmosphere at the surface of the Earth, adjusted to the height of sea level. It is a measure of the weight that all the air in a column vertically above a point on the Earth's surface would have, if the point were located at sea level. It is calculated over all surfaces - land, sea and inland water.

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CDS parameter name

ESGF variable id

units

Standard name (CF)

Long name

Description

Minimum 2m temperature in the last 24 hours Daily minimum near-surface air temperature 

tasmin

K

air_temperature

Daily Minimum Near-Surface Air Temperature

Daily minimum temperature of air at 2m above the surface of land, sea or inland waters.

Maximum 2m temperature in the last 24
hoursDaily maximum near-surface air temperature

tasmax

K

air_temperature

Daily Maximum Near-Surface Air Temperature

Daily maximum temperature of air at 2m above the surface of land, sea or inland waters.

Mean precipitation fluxPrecipitation

pr

kg m-2 s-1

precipitation_flux

Precipitation

The sum of liquid and frozen water, comprising rain and snow, that falls to the Earth's surface. It is the sum of large-scale precipitation and convective precipitation. This parameter does not include fog, dew or the precipitation that evaporates in the atmosphere before it lands at the surface of the Earth. This variable represents amount of water per unit area and time.

Geopotential height at 500 hPa geopotential height

zg500

m

geopotential_height

Geopotential Height at 500hPa

The geopotential height of the 500 hPa pressure surface shows approximately how far one has to go up in the atmosphere before the pressure drops to 500 hPa (i.e. 500 millibars). Gravitational potential energy per unit mass normalised by the standard gravity at 500hPa at the same latitude.

Grids

DCPP data like the rest of CMIP6 is reported either on the model’s native grid or re-gridded to one or more target grids with data variables generally provided near the centre of each grid cell (rather than at the boundaries). A grid_label (found in the file name following the ensemble identifier and also in the file's global metadata attributes) indicates whether the data is provided on the model's native grid (gn) or has been re-gridded (gr) to a target grid. For DCPP data in the CDS, only data from the EC-Earth3 model has been re-gridded to a target grid, data from the other models are provided on each model's native grid.  The file's "nominal_resolution" global metadata attribute gives an indication of the resolution of the data, for the DCPP data in the CDS the nominal resolution of the models is 100km (except for the MPI-ESM1-2-LR model, which is 250 km). 

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