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NOTE: Variables from the atmospheric component of the forecasting systems (single and pressure levels) are stored in GRIB format.
For details about the GRIB encoding used for these parameters variables in the different CDS datasets, please visit Parameters GRIB encoding details

Single level parametersPressure level parameters
at Temperature3Specific humidity3⁽⁷⁾⁽⁷⁾

⁽⁷⁾

Parameter Variable name	ECMWF			Météo-France				Met Office			DWD		CMCC		NCEP	JMA		ECCC
Parameter Variable name	System 4	SEAS5 (system=5)	SEAS5 (system=51)	System 5	System 6	System 7	System 8	GloSea5-GC2	GloSea5-GC2 (C3S-0.1 netcdf), GloSea5-GC2-LI and GloSea6 (system=600,601)	GloSea6 (system=602, 603)	GCFS2.0	GCFS2.1	SPSv3	SPSv3.5	CFSv2	CPS2	CPS3	GEM-NEMO	CanCM4i	GEM5-NEMO
Atmosphere single level
Static fields
Surface Altitude
Land area fraction
6-hourly
2 metre temperature																			⁽⁸⁾
2 metre dewpoint temperature
10 metre U wind component																			⁽⁸⁾
10 metre V wind component																			⁽⁸⁾
Mean sea level pressure
Total cloud cover															⁽⁵⁾			⁽⁸⁾	⁽⁸⁾	⁽⁸⁾
Soil temperature									⁽²⁾							⁽⁸⁾
Sea-surface temperature																⁽⁸⁾			⁽⁸⁾
Sea-ice temperature					⁽¹⁾	⁽¹⁾	⁽¹⁾		⁽¹⁾	⁽¹⁾	⁽¹⁾	⁽¹⁾	⁽¹⁾	⁽¹⁾
24-hourly
Sea-ice cover															⁽⁵⁾	⁽⁸⁾
Snow depth															⁽⁶⁾
Snow density
2 metre maximum temperature
2 metre minimum temperature
10 metre wind gust
Total precipitation (or large-scale & convective precipitation)
Snowfall
Surface sensible heat flux
Surface latent heat flux
Surface solar radiation downwards
Surface thermal radiation downwards
Surface net solar radiation
Surface net thermal radiation
Top net solar radiation
Top incoming solar radiation
Top net thermal radiation
Eastward turbulent surface stress
Northward turbulent surface stress
Evaporation
Runoff (or surface&sub-surface runoff)															⁽⁶⁾
Total column water vapour
Total column cloud liquid water
Total column cloud ice water
Atmosphere pressure levels at 1000,																					925, 850, 700, 500, 400, 300, 200, 100, 50, 30 and 10 (hPa)
12-hourly
Geopotential	⁽⁷⁾	⁽⁷⁾		⁽³⁾⁽⁷⁾	⁽⁷⁾	⁽⁷⁾		⁽⁷⁾	^(7b)		⁽⁷⁾		⁽⁷⁾		⁽⁴⁾⁽⁷⁾	⁽⁹⁾⁽⁷⁾	⁽⁷⁾	⁽¹⁰⁾
Temperature	⁽⁷⁾	⁽⁷⁾		⁽³⁾⁽⁷⁾	⁽	⁷⁾	⁽⁷⁾		⁽⁷⁾	^(7b)		⁽⁷⁾		⁽⁷⁾		⁽⁴⁾⁽⁷⁾	⁽⁹⁾⁽⁷⁾	⁽⁷⁾	⁽¹⁰⁾
Specific humidity	⁽⁷⁾	⁽⁷⁾		⁽³⁾⁽⁷⁾	⁽	⁷⁾	⁽⁷⁾		⁽⁷⁾	^(7b)		⁽⁷⁾		⁽⁷⁾			⁽⁹⁾⁽⁷⁾	⁽⁷⁾	⁽¹⁰⁾
U component of wind	⁽⁷⁾	⁽⁷⁾		⁽³⁾⁽⁷⁾	⁽⁷⁾	⁽⁷⁾		⁽⁷⁾	^(7b)		⁽⁷⁾		⁽⁷⁾		⁽⁴⁾⁽⁷⁾	⁽⁹⁾⁽⁷⁾	⁽⁷⁾	⁽¹⁰⁾
V component of wind	⁽⁷⁾	⁽⁷⁾		⁽³⁾⁽⁷⁾	⁽⁷⁾	⁽⁷⁾		⁽⁷⁾	^(7b)		⁽⁷⁾		⁽⁷⁾		⁽⁴⁾⁽⁷⁾	⁽⁹⁾⁽⁷⁾	⁽⁷⁾	⁽¹⁰⁾
Ocean
Monthly
Depth average potential temperature of upper 300m
Depth average salinity of upper 300m
Depth of 14°C isotherm
Depth of 17°C isotherm
Depth of 20°C isotherm
Depth of 26°C isotherm
Depth of 28°C isotherm
Mixed layer depth 0.01
Mixed layer depth 0.03
Sea ice thickness
Sea surface height above geoid
Sea surface salinity

NOTES:
(1) Sea-ice temperature is currently being provided by some of our partners as listed in the table, but due to technical reasons its processing within the C3S dataset has not been yet implemented.

...

(6) Snow depth and Runoff are provided by NCEP, but due to technical reasons its processing within the C3S dataset has not been yet implemented.

(7) 1000 hPa is also availablenot available.

(7b) 1000 hPa is not available for real-time forecast data prior to nominal January 2023 and their corresponding hindcasts.

(8) These variables are available, but as 24h averages.

(9) Just available at 850, 700, 500, 300, 200, 100, 50, 30 and 10 hPa. (NOTE: All pressure level variables, except geopotential, at 925hPa are also provided by JMA CPS2, but due to technical reasons the processing within C3S datasets has not been yet implemented).

(10) Values at 30hPa are not available.

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_{This document has been produced in the context of the Copernicus Climate Change Service (C3S).}

_{The activities leading to these results have been contracted by the European Centre for Medium-Range Weather Forecasts, operator of C3S on behalf of the European Union (Delegation agreement signed on 11/11/2014). All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose.}

_{The users thereof use the information at their sole risk and liability. For the avoidance of all doubt, the European Commission and the European Centre for Medium-Range Weather Forecasts have no liability in respect of this document, which is merely representing the author's view.}

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