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Several of the upgrades in CY49R1 have resulted in new parameters, some of which will be added to the dissemination through the Atmosphere Data Store (ADS) and the ECPDS ftp server. For now, the main new parameters are listed in the table below. Others might be added based on user requests. (any changes?)
Change to GRIB encoding
The GRIB model identifiers (generating process identification number) for cycle 49r1 will be changed as follows:
GRIB 1 Section 1 Octets | GRIB 2 Section 4 Octets | ecCodes key | Component | Model identifier | |
|---|---|---|---|---|---|
48r1 | 49r1 | ||||
6 | 14 | generatingProcessIdentifier | Atmospheric model | 154 | 158 |
6 | 14 | generatingProcessIdentifier | Ocean wave model | 119 | 106 |
For all parameters in GRIB 2 the Master Tables Version Number will be changed as follows:
GRIB 2 Section 1 Octets | ecCodes key | Master Tables Version Number | |
|---|---|---|---|
48r1 | 49r1 | ||
10 | tablesVersion | 30 | 32 |
Software
To handle the data of Cycle 49r1 we recommend to use the ECMWF software packages
ecCodes 2.36.0 (minimum version 2.35.1)
CodesUI 1.8.0 (minimum version 1.7.3)
Magics 4.15.4 (minimum version 4.13.0)
Metview 5.22.1
ODC 1.5.2 (minimum version 1.4.6)
On the ATOS HPC these versions correspond to ecmwf-toolbox/2024.06.0.0.
Availability of test data from the cycle 48r1 test suites
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The CAMS operational FTP server (ECPDS) will serve the most recent 3 days of test data, once the e-suite is running in near-real-time, in the directories "/DATA/CAMS_GLOBAL_TEST" and "/DATA/CAMS_EUROPE_BC_TEST" for global and regional boundary condition data, respectively. In addition, surface level fields (model level 137) will be provided as individual files in the "/DATA/CAMS_GLOBAL_ADDITIONAL_TEST" directory. Users wanting to access the output from the current test system for a longer period can access the data from 1 September 2022 onwards directly on MARS or through the Atmosphere Data Store. More details can be found here: Accessing CAMS 48r1 49r1 test data. |
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