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- Output time:00 and 12 UTC
Output frequency: between 1 and 6 hours (including step 0 encoded as forecast type as well)
- the model output steps should be the shortest available
- Wave parameters should be obtained from the full 2-D spectrum (we stress this fact as there seems to be some confusion about wave parameters' names and definitions even in the latest WMO GRIB2 code tables)
Name | units | paramId*1 | shortName*1 | |||
---|---|---|---|---|---|---|
Atmospheric forcing: | m/s | 165 | 10u | |||
m/s | 166 | 10v | ||||
Wave Fields: | m | m | ||||
s | ||||||
degree true | 140230 | mwd | s | |||
Mean zero-crossing wave period | s | 140221 | mp2 | |||
Peak wave period | s | 140231 | pp1d | |||
Significant height of combined wind waves and swell | m | 140229 | swhdegree true |
- Follow the links for exact GRIB2 WMO compliant definitions
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- *1 valid in ECMWF's ecCodes only
Encoding
All details about the required data format can be found in the page Encoding details.
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