| Name | Volumetric transpiration stress-onset (soil moisture) | Abbreviation | voltso | Unit | m3 m-3 | paramId | 260211 |
| Definition | Soil water content at which plants wilt and can no longer recover. |
| Validity | instantaneous |
| Comment | It is an auxiliary field which should be supplied with the field Volumetric soil water. It should be archived with the same frequency as the static fields. |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 2 | land surface products |
| Parameter category | 3 | soil products |
| Parameter number | 11 | Volumetric transpiration stress - onset (soil moisture) |
| Level | ||
|---|---|---|
| Type of first fixed surface | 151 | soil level** |
| Scale factor of first fixed surface | 0 | |
| Scaled value of first fixed surface | 0/1/2/3/.../X-1 | n-1 for the nth soil layer |
| Type of second fixed surface | 151 | soil level* |
| Scale factor of second fixed surface | 0 | |
| Scaled value of second fixed surface | 1/2/3/.../X | n for the nth soil layer |
**newly approved level type (WMO release in May 2016)