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| Name: | relative humidity | Abbreviation: | rh | Unit: | % |
| Definition | The ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at the same temperature on a pressure level. |
| Validity | instantaneous |
| Comment | |
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 |