There are two versions of the ERA-20CM atmospheric model integrations.
Each is comprised of a 10-member ensemble using:
- Radiative forcing from CMIP5
- Sea-surface temperature (SST) and sea ice cover from HadISST2
|Jan 1899 - Dec 2009
|Jan 1899 - Dec 2010
Note that ERA-20CMv0 is an experimental version and public access to this data will be disabled in the future. Existing users of ERA-20CMv0 should migrate to the final version as soon as possible.
The model uses a sophisticated data assimilation methodology which includes a model bias correction. The ocean model used is forced by atmospheric daily surface fluxes, relaxed to SST and bias corrected.