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 |