On January 7th, 2021, we reported that due to unexpected technical issues, the ADS team had to temporarily suspend access to the CAMS European air quality forecast data more than a few days old.

On January 8th, access was restored but with slow data rates for dates more than a few days old.

On January 21st, the ADS team reported that performance to access older (more than 4 days old) forecasts and analyses data from the CAMS Europe Air Quality dataset was degraded with a very high failure rate.

This was because most of this data is hosted by an external organisation which was experiencing a severe strain on their IT resources.

Following our notification on March 1st about the external organisation system upgrade implementation on Tuesday 02 March 2021, from 08:00UTC, we are please to announce that full access to the CAMS European AQ archive has been restored.

If you continue to experience difficulties downloading CAMS European air quality forecast data from the ADS, please contact us.


Copernicus Helpdesk at ECMWF