GRIB-API definition
time integrated surface clear-sky solar radiation downwards| Accumulated downward short-wave radiation flux, clear sky | Abbreviation |
ssrcdW s
UERRA details
| Definition | Downward clear-sky solar (short-wave) radiation at the surface (assuming transparent clouds). |
| Validity | accumulated (from the beginning of the forecast) |
| Comment | The flux sign convention is positive downwards. |
WMO GRIB2 definition
| Parameter |
|---|
| Discipline | 0 | meteorological products |
| Parameter Category | 4 | short-wave radiation |
| Parameter Number |
XXX
| clear-sky downward | 52 | Downward short-wave radiation flux, clear sky** |
| Type of statistical processing | 1 | accumulated |
| Level |
|---|
| Type of first fixed surface | 1
| ground or water surface |
| Scale factor of first fixed surface | all bits to 1 | missing |
| Scaled value of first fixed surface | all bits to 1 | missing |
| Type of second fixed surface | all bits to 1 | missing
|
| Scale factor of second fixed surface | all bits to 1 | missing |
| Scaled value of second fixed surface | all bits to 1 | missing |
**newly approved by WMO (release in May 2016)