GRIB-API definition
| Name | Total column water vapour | Abbreviation | tcwv | Unit | kg m-2 | paramId: | 137 |
UERRA details
| Definition | Vertically integrated water vapour. |
| Validity | instantaneous |
| Comment |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 0 | meteorological products |
| Parameter category | 1 | moisture |
| Parameter number | 64 | Total column integrated water vapour |
| 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 | 8 | nominal top of the atmosphere |
| Scale factor of second fixed surface | all bits to 1 | missing |
| Scaled value of second fixed surface | all bits to 1 | missing |