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ECMWF makes available a GRIB decoding library (GRIB-API) for the benefit of the WMO community. GRIB-API can be freely downloaded from here and the documentation can be found here. The GRIB-API provides a simplified access to GRIB2 headers through a set of virtual keys documented her here
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The version of GRIB-API which can recognise all UERRA parameters is currently under development and should be released to some extent by the 1st half of June. Until then please use the version 1.15.0 which can identify UERRA products as per below (paragraph 1). |
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| Section 1 | |||
|---|---|---|---|
| Octets | Key name | Value | Description |
| 6-7 | centre | 78 | Offenbach (edzw) TBD |
| 84 | Toulouse (lfpw) TBD | ||
| 8282 (Sweden) | Sweden (eswi) | ||
| 74 | UK Meteorological Office Exeter (egrr) TBD | ||
| 10 | tablesVersion | 17 | latest WMO table with some new definitions for UERRA |
| 20 | productionStatusOfProcessedData | 8 | operational UERRA products |
| 9 | test UERRA products | ||
| 21 | typeOfProcessedData | 0 | Analysis products |
| 1 | Forecast products | ||
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| deterministic | ensemble DA | |||
| AN | FC | AN | FC | |
Accumulations | N/A | N/A | ||
| Instantaneous | ||||
| Maximum since previous post-processing | ||||
| Minimum since previous post-processing | ||||
Parameter on soil level (soil temperature on soil level 1) | ||||