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1. Brief description: After the latest CNRM model change in October 2020, the CNRM grid is inverted, i.e. j-dimension scans positively (south to north) instead of negatively (north to south) as per the S2S requirement Encoding#Gridandresolution As the related GRIB 2 scanningMode changed from 0 to 64, such GRIB 2 encoding is correct in principle. Still it is not desirable for reasons of consistency with the previous encoding of CNRM data, and in addition may cause problems for users. https://jira.ecmwf.int/servicedesk/customer/portal/4/SD-92894 2. Recommendation: Users should be aware of this when processing CNRM data from the affected period. |
Wrong units of Snow depth water equivalent
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1. Brief description: The snow depth water equivalent has been provided from CNRM model by mistake in meters instead of the requested kg/m2. The error will be fixed in the upgraded system coming in 2025 (with the maximum values close to 750000 kg/m2 on glaciers and ice-sheets) 2. Recommendation: Users need to multiply the snow depth field by 1000 to get the same units as for other S2S models. |
NCEP (kwbc)
Missing steps 0 and 0-24 in realtime outputs
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