GRIB-API definition
| Name | Wind direction | Abbreviation | wdir | Unit | degree true | paramId: | 3031 |
UERRA details
| Definition | Wind direction on a height level. |
| Validity | instantaneous |
| Comment |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 0 | meteorological products |
| Parameter category | 2 | momentum |
| Parameter number | 0 | wind direction (from which blowing) |
| Level | ||
|---|---|---|
| Type of first fixed surface | 103 | specified height level above ground (m) |
| Scale factor of first fixed surface | 0 | |
| Scaled value of first fixed surface | value in m | |
| 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 |