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 on model levels are stored up to a height of about 15km, for a specific set of parameters, and for the
analyses every six hours only (at 00/06/12/18UTC).
Potential temperature level parameters
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The following parameters are available on one potential temperature level (320 K) | Name | Abbreviation | Unit | Frequency | | Potential vorticity | pv | K m2 kg-1 s-1 | Instantaneous once a day (00Z) |
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Single-level parameters
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The following parameters are available on single levels | Name | Abbreviation | Unit | Frequency | | 10 metre u-velocity | 10u | m s-1 | Instantaneous once a day (00Z) | | 10 metre v-velocity | 10v | m s-1 | Instantaneous once a day (00Z) | | CAPE | cape | J kg-1 | Daily averaged | | Skin temperature | skt | K | Daily averaged | | Snow depth water equivalent | sd | kg m-2 | Daily averaged | Snow density
| rsn | kg m-3 | Daily averaged | | Snow fall water equivalent | sf | kg m-2 | Accumulated, archived every 24 hours | Snow albedo
| asn | % | Daily averaged | | Soil moisture top 20cm | sm20
| kg m-3 | Daily averaged | | Soil moisture top 100 cm | sm100 | kg m-3 | Daily averaged | | Soil temperature top 20 cm | st20 | K | Daily averaged | | Soil temperature top 100 cm | st100 | K | Daily averaged | | Surface air maximum temperature | mx2t6 | K | 6-hourly
| | Surface air minimum temperature | mn2t6 | K | 6-hourly
| | Surface air temperature | 2t | K | Daily averaged | | Surface air dewpoint temperature | 2d | 2d | Daily averaged | Sea surface temperature
| wtmp | K | Daily averaged | | Sea ice cover | ci | proportion | Daily averaged | | Surface pressure | sp | Pa | Instantaneous once a day (00Z) | | Time-integrated top net thermal radiation | ttr | W m-2 s | Accumulated, archived every 24 hours | | Time-integrated surface latent heat flux | slhf | W m-2 s | Accumulated, archived every 24 hours | | Time-integrated surface net solar radiation | ssr | W m-2 s | Accumulated, archived every 24 hours | | Time-integrated surface net thermal radiation | str | W m-2 s | Accumulated, archived every 24 hours | | Time-integrated surface sensible heat flux | sshf | W m-2 s | Accumulated, archived every 24 hours | | Time-integrated surface solar radiation downwards | ssrd | W m-2 s | Accumulated, archived every 24 hours | | Time-integrated surface thermal radiation downwards | strd | W m-2 s | Accumulated, archived every 24 hours | | Total cloud cover | tcc | % | Daily averaged | | Total column water | tcw | kg m -2 | Daily averaged | | Total precipitation | tp | kg m-2 | Accumulated, archived every 24 hours 6-hourly | Convective precipitation *
| cp | kg m-2 | Accumulated, archived every 24 hours | Northward turbulent surface stress *
| nsss | N m-2 s | Accumulated, archived every 24 hours | | Eastward turbulent surface stress * | ewss | N m-2 s | Accumulated, archived every 24 hours | | Mean sea-level pressure | msl | Pa | Instantaneous once a day (00Z) | Water runoff and drainage *
| ro | kg m-2 | Accumulated, archived every 24 hours | Surface water runoff *
| sro | kg m-2 | Accumulated, archived every 24 hours | | Land sea mask | lsm | Proportion of land | Instantaneous once a day (00Z) Only control forecast | | Orography | orog | gpm | Instantaneous once a day (00Z) Only control forecast | | Soil type | slt | Categorical | Instantaneous once a day (00Z) Only control forecast |
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