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There are no new or discontinued parameters in the disseminated data compared to 47r2.
Software
Change to GRIB encoding
As for the IFS Cycye 47r3 upgrade, the Master Tables Version Number for all parameters in GRIB 2 will be changed as follows:
GRIB 2 Section 1 Octets | ecCodes key | Master Tables Version Number | |
---|---|---|---|
47r2 | 47r3 | ||
10 | tablesVersion | 5 | 27 |
All users are encouraged to check their data processing with the test data provided.
Software
To ecCodes version 2.22.1 or later is required to handle the full range of parameters from this cycle. In fact, it is recommended to use , in particular the changed parameter names listed in the table below, ecCodes version 2.23.0 or later for decoding .22.1 is required as a minimum. In fact, for the decoding of all data generated by IFS cycle Cycle 47r3.In particular, ecCodes version 2.2223.1 or later will be required to properly decode the names of the parameters in the table below (which have changed):0 or later is recommended.
paramId | old name | new name |
---|---|---|
210203 | GEMS Ozone | Ozone mass mixing ratio (full chemistry scheme) |
211203 | GEMS Ozone | Ozone mass mixing ratio difference (full chemistry scheme) |
210123 | Carbon monoxide | Carbon monoxide mass mixing ratio |
211123 | Carbon monoxide | Carbon monoxide mass mixing ratio difference |
210121 | Nitrogen dioxide | Nitrogen dioxide mass mixing ratio |
211121 | Nitrogen dioxide | Nitrogen dioxide mass mixing ratio difference |
210122 | Sulphur dioxide | Sulphur dioxide mass mixing ratio |
211122 | Sulphur dioxide | Sulphur dioxide mass mixing ratio difference |
217019 | Ammonia | Ammonia mass mixing ratio |
217027 | Nitrogen monoxide | Nitrogen monoxide mass mixing ratio |
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Date | Reason for update |
---|---|
1 July 2021 | Initial version |
9 July 2021 | ecCodes version requirement noted |
20 August 2021 | Access to test data |
2 September 2021 | Implementation date postpone by 1 week to 12 October 2021 |
4 October 2021 | Recommendation to use ecCodes version 2.23.0 with cycle 47r3 and highlight of a change in the GRIB 2 encoding |