GRIB-API definition
| Name: | Relative humidity | Abbreviation: | r | Unit: | % | paramId: | 157 |
UERRA details
| Definition | Relative humidity is defined with respect to saturation of the mixed phase, i.e. with respect to saturation over ice below -23C and with respect to saturation over water above 0C. In the regime in between a quadratic interpolation is applied. |
| Validity | instantaneous |
| Comment |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 0 | meteorological products |
| Parameter category | 1 | moisture |
| Parameter number | 1 | relative humidity |
| Level | ||
|---|---|---|
| Type of first fixed surface | 100 | pressure level |
| Scale factor of first fixed surface | 0 | |
| Scaled value of first fixed surface | value in Pa | |
| 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 |