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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).
- 104 Sigma leve level
- 105 Hybrid level
- 111 Eta level
- 113 Logarithmic hybrid level
- 118 Hybrid height level
- 119 Hybrid pressure level
- 150 Generalized vertical height coordinate
| Name | Abbreviation | Unit |
| Cloud cover +++ | cc | % |
| Pressure | pres | Pa |
| Specific cloud liquid water content | clwc | kg kg-1 |
| Specific cloud ice water content | ciwc | kg kg-1 |
| Specific humidity *** | q | kg kg-1 |
| Temperature | t | K |
| U-velocity | u | m s-1 |
| V-velocity | v | m s-1 |
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| Name | Abbreviation | Unit |
| Cloud cover +++ | cc | % |
| Geopotential height | gh | gpm |
| Specific cloud liquid water content | clwc | kg kg-1 |
| Specific cloud ice water content | ciwc | kg kg-1 |
| Relative humidity *** | r | % |
| Temperature | t | K |
| U-velocity | u | m s-1 |
| V-velocity | v | m s-1 |
...
| Name | Abbreviation | Unit |
| Cloud cover +++ | cc | % |
| Pressure | pres | Pa |
| Specific cloud liquid water content | clwc | kg kg-1 |
| Specific cloud ice water content | ciwc | kg kg-1 |
| Relative humidity *** | r | % |
| Temperature | t | K |
| Wind speed | ws | m s-1 |
| Wind direction +++ | wdir | degree true |
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| Name | Abbreviation | Unit | original name (temporary) |
Precipitation and humidity | |||
|---|---|---|---|
| Water runoff and drainage *** Percolation ??? | 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 |
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| 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) |
Volumetric soil moisture *** +++ | 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 |
Static fields | |||
| Land-sea mask *** | lsm | (0-1) | Land cover |
| Orography *** | orog | gpm | |
| Surface roughness *** | sr | m |