GRIB-API definition
| Name | Time-integrated direct short wave radiation flux | Abbreviation | tidirswrf | Unit | J m-2 | paramId: | 260264 |
UERRA details
| Definition | Direct solar (short-wave) radiation at the surface. |
| 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 | 13 | direct short wave radiation flux |
| 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 |
3 Comments
Richard Mladek
Add the newly added WMO definition to paramId 47 (Direct solar radiation)?
Shahram Najm
The WMO calls 0,4,13 "Direct short wave radiation flux"
Richard Mladek
We could probably use the already defined parameter called "Total sky direct solar radiation at surface" (228021). In that case the WMO GRIB2 definition (at surface) would have to be added.