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Remarks:
Useful links:
Attached documents to this page which were used for creation of GRIB2 UERRA definitions (they are linked above too):
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Output of analyses on model levels are stored up to a height of about 15km every six hours (at 00/06/12/18UTC).Exact type of each model levels must be clarified. Here are the possibilities from WMO doc (p.38)
It was agreed that hybrid level 105 from the WMO list below should be used for all UERRA origins.
- 104 Sigma level
- 105 Hybrid level
- 111 Eta level
- 113 Logarithmic hybrid level
- 118 Hybrid height level
- 119 Hybrid pressure level
- 150 Generalized vertical height coordinate
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| Name | Abbreviation | Unit | original name (temporary) |
Precipitation and humidity | |||
|---|---|---|---|
| Percolation ??? +++ | TBD ro | kg m-2 | Drainage |
| Surface air relative humidity +++ | 2r | % | 2m relative humidity |
| Surface runoff | sro | kg m-2 | Runoff |
| Total column water | tcw | kg m-2 | |
| Total precipitation | tp | kg m-2 | |
Accumulated radiation fluxes | |||
| Albedo | al | % | |
| Evaporation +++ | e | kg m-2 | |
| Time-integrated surface latent heat flux | slhf | W m-2 s |
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| Time-integrated surface sensible heat flux | sshf | W m-2 s |
|
| Time-integrated surface clear-sky solar radiation downwards +++ | scsrd | W m-2 s | Clear-sky short-wave downward flux at the surface |
| Time-integrated surface clear-sky solar radiation upwards +++ | scsru | W m-2 s | Clear-sky short-wave upward flux at the surface |
| sdsr | W m-2 s | Direct short-wave radiation flux at the surface | |
| Time-integrated surface net solar radiation | ssr | W m-2 s | Net short-wave radiation flux at the surface |
| Time-integrated surface solar radiation downwards | ssrd | W m-2 s | Total short-wave radiation flux at the surface |
| Time-integrated surface clear-sky thermal radiation downwards +++ | strcd | W m-2 s | Clear-sky long-wave downward flux at the surface |
| Time-integrated surface net thermal radiation | str | W m-2 s | Net long-wave radiation flux at the surface |
| Time-integrated surface thermal radiation downwards | strd | W m-2 s | Long-wave downward flux at the surface |
Temperature and wind speed | |||
| 10 metre wind speed | 10si | m s-1 | 10m wind speed |
| 10 metre wind direction +++ | 10wdir | degree true | 10m wind direction |
| 10 metre wind gust ???+++ | 10fg | m s-1 | 10 m wind gust [in the last 24 hrs | since previous post-processing] |
| Surface air maximum temperature ??? +++ | mx2t | K | Maximum [1.5 m | 2 m] temperature since previous post-processing |
| Surface air minimum temperature ???+++ | mn2t | K | Minimum [1.5 m | 2 m] temperature since previous post-processing |
| Surface air temperature | 2t | K | [1.5 | 2 ] m temperature |
| Skin temperature | skt | K | Surface temperature |
Pressure/Height | |||
| Mean sea level pressure | msl | Pa | |
| Surface pressure | sp | Pa | |
Cloud properties | |||
| High cloud cover +++ | hcc | % | |
| Low cloud cover +++ | lcc | % | |
| Medium cloud cover +++ | mcc | % | |
| Total cloud cover | tcc | % | |
Snow | |||
| Snow density | rsn | kg m-3 | |
| Snow depth | sd ??? | m | |
| Snow depth water equivalent | sd ??? | kg m-2 | Water equivalent of accumulated snow depth |
| Snow fall water equivalent | sf | kg m-2 | Accumulated total snowfall |
Soil | |||
| Liquid non-frozen volumetric soil moisture | lvsw | m3 m-3 | Soil water index for the first cm / for 5cm / in the root zone (liquid) |
| vsw | m3 m-3 | Volumetric soil water layer 1/2/3/4 (only 3 layers for Meteo-France) | |
| Soil heat flux ???+++ | hflux | W m-2 | |
Soil temperature +++ | st | K | Soil temperature level 1/2/3/4 |
| Soil depth +++ | TBD | m | |
Static fields | |||
| Land-sea mask | lsm | (0-1) | Land cover |
| Orography | orog | gpm | |
| Surface roughness | sr | m |