GRIB-API ecCodes definition
Name: | Peak wave period of 1D spectra | Abbreviation: | pp1d | Unit: | s | paramId: | 140231 |
UERRA Other details
Definition | Reciprocal of the frequency corresponding to the largest value (peak) of the frequency wave spectumspectrum. The frequency wave spectrum is obtained by integrating the two-dimensional wave spectrum over all directions |
Validity | instantaneous |
Comment |
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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 |
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Level | |||
---|---|---|---|
Type of first fixed surface | 101 | 1 | ground or water surfaceMean sea level |
Scale factor of first fixed surface | 0all bits to 1 | missing | |
Scaled value of first fixed surface | 0all 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 |
...