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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 Parameters GRIB encoding details

Variable name	ECMWF			Météo-France					Met Office			DWD			CMCC		NCEP	JMA		ECCC					BOM
	System 4 (system=4)	SEAS5 (system=5)	SEAS5 (system=51)	System 5 (system=5)	System 6 (system=6)	System 7 (system=7)	System 8 (system=8)	System 9 (system=9)	GloSea5-GC2 (system=12)	GloSea5-GC2 (C3S-0.1 netcdf) (system=12,13), GloSea5-GC2-LI (system=14,15) and GloSea6 (system=600,601)	GloSea6 (system=602,603,604)	GCFS2.0 (system=2)	GCFS2.1 (system=21)	GCFS2.

1

2 (system=22)

SPSv3 (system=3)

SPSv3.5 (system=35)

CFSv2 (system=2)

CPS2 (system=2)

CPS3 (system=3)

GEM-NEMO (system=1)

CanCM4i (system=2)

GEM5-NEMO (system=3)

CanESM5.1p1bc (system=4)

GEM5.2-NEMO (system=5)

ACCESS-S2 (system=2)

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

100 metre U wind component
100 metre U wind component
Mean sea level pressure																									(8)
Total cloud cover																	(5)			(8)	(8)	(8)		(8)
Soil temperature										(2)								(8)
Sea-surface temperature																		(8)			(8)				(8)
Sea-ice temperature					(1)	(1)	(1)	(1)		(1)	(1)	(1)	(1)	(1)	(1)	(1)
Total column water vapour			(8b)										(8b)			(8b)							(8b)	(8b)
Total column cloud liquid water			(8b)										(8b)										(8b)	(8b)
Total column cloud ice water			(8b)										(8b)										(8b)	(8b)
24-hourly
Sea-ice cover																	(5)	(8)
Snow depth																	(6)

Snow

depth

density

⁽⁶⁾

Snow

density

cover

 

2 metre maximum temperature

2 metre minimum

temperature

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)
Soil levels
24-hourly
Volumetric soil moisture (12)							(8)	(8)
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)					(8b)
Temperature	(7)	(7)		(3)(7)	(7)	(7)			(7)	(7b)		(7)			(7)		(4)(7)	(9)(7)	(7)	(10)					(8b)
Specific humidity	(7)	(7)		(3)(7)	(7)	(7)			(7)	(7b)		(7)			(7)			(9)(7)	(7)	(10)					(8b)
U component of wind	(7)	(7)		(3)(7)	(7)	(7)			(7)	(7b)		(7)			(7)		(4)(7)	(9)(7)	(7)	(10)					(8b)
V component of wind	(7)	(7)		(3)(7)	(7)	(7)			(7)	(7b)		(7)			(7)		(4)(7)	(9)(7)	(7)	(10

)

)					(8b)
Ocean
Monthly
Depth average potential temperature of upper 300m																							(11)	(11)
Depth average salinity of upper 300m																							(11)	(11)
Depth of 14°C isotherm																							(11)	(11)
Depth of 17°C isotherm																							(11)	(11)
Depth of 20°C isotherm																							(11)	(11)
Depth of 26°C isotherm																							(11)	(11)
Depth of 28°C isotherm																							(11)	(11)
Mixed layer depth 0.01																							(11)	(11)
Mixed layer depth 0.03																							(11)	(11)
Sea ice thickness																							(11)	(11)
Sea surface height above geoid																							(11)	(11)
Sea surface salinity																							(11)	(11)

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.

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