Archive (also referred to ashistorical)datarefer to past data and include:
expired real-time forecast data
reanalysis data
data from specific experiments or observational campaigns
Find out how to get archive data
Public datasets
ECMWF's public archive data are free (terms and conditions apply) and can be explored from ourdata browser, where small amounts of data can be downloaded.
Data available through theCopernicus Climate Change and Atmosphere Monitoring Services
If you want to explore the open and free of charge (see Copernicus Licence for details) data of the Copernicus Climate Change Service (C3S) please have a look here:
If you want to explore the open and free of charge (see Copernicus Licence for details) data of the Copernicus Atmosphere Monitoring Service (CAMS) please have a look here:
A range of data related to atmospheric quality are available free of charge through the Copernicus Atmosphere Monitoring Service in the Atmosphere Data Store