GRIB-API definition
UERRA details
| Definition | The land-sea mask is a field that contains, for every grid point, the proportion of land in the grid box. The values are between 0 (sea) and 1 (land). |
| Validity | Fixed |
| Comment |
1 indicates land and 0 indicates sea. Should be archived with every cycle of reanalysis. |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 2 | land surface products |
| Parameter | ||
| category | 0 | vegetation/biomass |
| Parameter |
| number | 0 | land cover (proportion) |
| 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 | 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 |