We have found that some ERA5 data from the Climate Data Store (CDS) has become corrupted.
The corrupted data are in the following ERA5 CDS catalogue entries (datasets):
A page listing the details of the affected fields has been produced -
361 corrupted fields (out of a total of 3.1 billion ERA5 fields)
...
have been identified and replaced.
This corruption issue was resolved on 2021-04-14.
Users that have downloaded any of these affected fields prior to 2021-04-15, are recommended to re-download them.
For reference, this issue has been recorded as a "Resolved issue" in the ERA5: data documentation.
Please note, this issue does NOT affect:
- ERA5 data downloaded from the MARS archive (such as CDS API requests using 'reanalysis-era5-complete')
- ERA5 Monthly CDS catalogue entries (datasets); these were derived from the ERA5 data on MARS
There is no need to re-download these data.
We apologise for any inconvenience this may have caused you.
Regards,
ECMWF Support