ecCodes definition
| Name: | Peak wave period | Abbreviation: | pp1d | Unit: | s | paramId: | 140231 |
Other details
| Definition | Reciprocal of the frequency corresponding to the largest value (peak) of the frequency wave spectrum. The frequency wave spectrum is obtained by integrating the two-dimensional wave spectrum over all directions |
| Validity | instantaneous |
| Comment | Missing values should be encoded as bitmap. |
WMO GRIB2 definition
| Parameter | ||
|---|---|---|
| Discipline | 10 | oceanographic products |
| Parameter category | 0 | waves |
| Parameter number | 34 | Peak wave period |
| 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 |