...
- Participating Centres are expected to produce output fields in GRIB2 data format and with consistent units. For more information please refer to WMO Manual on Codes
Parameters
Missing values
- Bitmaps shall be used to indicate missing values
...
ECMWF makes available a GRIB decoding library (ecCodes) for the benefit of the WMO community. ecCodes can be freely downloaded from here and the documentation can be found here. EcCodes provides a simplified access to GRIB2 headers through a set of virtual keys documented here
Encoding details
...
Parameters
General encoding
...
Specific details which should be encoded in GRIB2 sections 1 and 4:
...