ERA5 CDS data corruption - additional data corrected on 21 Jul 2021

We have found that some additional 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 -

147 new corrupted fields have been identified and replaced.

This additional corruption issue was resolved on 2021-07-21.

Users that have downloaded any of these affected fields prior to 2021-07-21, 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 directly from the ERA5 data on MARS, so are unaffected.

There is no need to re-download these data.

We apologise for any inconvenience this may have caused you.


ECMWF Support