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| Name | Relative humidity | Abbreviation | r | Unit | % | paramId: | 157 |
UERRA details
| DefinitionThe | ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at the same temperature on a height levelRelative 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
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