Below is a list of all agreed upon parameters. Participating Centres are expected to produce output fields in GRIB2 data format and with consistent units. All units are defined by the WMO in the GRIB2 manual . For more information please refer to Guide to the WMO Table Driven Code Form.
Model level parameters
Output of analyses on model levels are stored up to a height of about 15km every six hours (at 00/06/12/18UTC).
| Name | Abbreviation | Unit |
| Cloud cover | cc | % |
| Specific cloud liquid water content | clwc | kg kg**-1 |
| Specific cloud ice water content | ciwc | kg kg**-1 |
| Pressure | pres | Pa |
| Specific humidity | q | kg kg-1 |
| Temperature | t | K |
| U-velocity | u | m s-1 |
| V-velocity | v | m s-1 |
Pressure level parameters
Output of forecasts and analyses on pressure levels for defined time steps.
Pressure levels [hPa]:
1000, 975, 950, 925, 900, 875, 850, 825, 800, 750, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10
Time steps:
Analysis:
● Store analysis output in six hourly intervals at 00 UTC, 06 UTC, 12 UTC, 18 UTC for the Unified Model and Harmonie
● Store analysis output in hourly intervals for COSMO
Forecasts for all models:
● T+1,2,3,4,5,6,9,12,15,18,21,24,27,30 started at 00 UTC and 12 UTC
● T+1,2,3,4,5,6 started at 06 UTC and 18 UTC
| Name | Abbreviation | Unit |
| Cloud cover | cc | % |
| Specific cloud liquid water content | clwc | kg kg**-1 |
| Specific cloud ice water content | ciwc | kg kg**-1 |
| Geopotential heigh | gh | gpm |
| Relative humidity | rh | % |
| Temperature | t | K |
| U-velocity | u | m s-1 |
| V-velocity | v | m s-1 |
Height level parameters
Output of forecasts and analyses on pressure levels for defined time steps.
Height levels [m]:
15, 30, 50, 75, 100, 150, 200, 250, 300, 400, 500
Time steps:
Analysis:
● Store analysis output in six hourly intervals at 00 UTC, 06 UTC, 12 UTC, 18 UTC for the Unified Model and Harmonie
● Store analysis output in hourly intervals for COSMO
Forecasts for all models:
● T+1,2,3,4,5,6,9,12,15,18,21,24,27,30 started at 00 UTC and 12 UTC
● T+1,2,3,4,5,6 started at 06 UTC and 18 UTC
| Name | Abbreviation | Unit |
| Cloud cover | cc | % |
| Specific cloud liquid water content | clwc | kg kg**-1 |
| Specific cloud ice water content | ciwc | kg kg**-1 |
| Pressure | pres | Pa |
| Relative humidity | rh | % |
| Temperature | t | K |
| Wind speed | ws | m s-1 |
| Wind direction | wdir | deg |
Surface level parameters
Time steps:
Analysis:
● Store analysis output in six hourly intervals at 00 UTC, 06 UTC, 12 UTC, 18 UTC for the Unified Model, Harmonie, MESCAN
● Store hourly analysis output for COSMO, MESAN, SURFEX
Forecast:
● Store forecast output at T+1,2,3,4,5,6,9,12,15,18,21,24,27,30 started at 00 UTC and 12 UTC for the Unified Model, COSMO, Harmonie
● Store forecast output at T+1,2,3,4,5,6 started at 06 UTC and 18 UTC for the Unified Model, COSMO, Harmonie
| Name | Abbreviation | Unit |
Precipitation and humidity | ||
|---|---|---|
| Drainage | kg m-2 | |
| Surface air relative humidity *** | rh | % |
| Surface water runoff *** | sro | kg m-2 |
| Total column water *** | tcw | kg m-2 |
| Total precipitation | tp | kg m-2 |
Accumulated radiation fluxes | ||
| Albedo | a | % |
| Time-integrated surface solar radiation downwards *** | ssrd | W m-2 s |
| Time-integrated surface solar radiation upwards *** | ssru | W m-2 s |
Direct short-wave radiation flux at the surface *** | W m-2 s | |
| Time-integrated surface net solar radiation *** | ssr | W m-2 s |
Total shortwave radiation flux at the surface *** | W m-2 s | |
Direct short-wave radiation flux at the surface *** | W m-2 s | |
Clear-sky long-wave downward flux at the surface *** | W m-2 s | |
| Time-integrated surface thermal radiation downwards *** | strd | W m-2 s |
| Time-integrated surface net thermal radiation *** | str | W m-2 s |
| Evaporation *** | e | kg m-2 |
| Time-integrated surface latent heat flux *** | slhf | W m-2 s |
| Time-integrated surface sensible heat flux *** | sshf | W m-2 s |
Temperature and wind speed | ||
Pressure/Height | ||
Cloud properties | ||
Snow | ||
Soil | ||
Static fields | ||