| Name | u_velocity | Abbreviation | u | Unit | m s-1 |
| Definition | Zonal (Eastward) wind with a vertical coordinate on a height level. |
| Validity | instantaneous |
| Comment |
GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 0 | meteorological products |
| Parameter Category | 2 | momentum |
| Parameter Number | 2 | u-component of wind |
| Level | ||
|---|---|---|
| Type of first fixed surface | = 103 | specified height level above ground (m) |
| Scale factor of first fixed surface | = 0 | |
| Scaled value of first fixed surface | = value in m | |
| 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 |