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
| Ensemble | Status | Period | IFS cycle |
Radiative forcing |
Sea-surface | Production year |
| ERA-20CMv0 | experimental | Jan 1899 - Dec 2009 | Cy37r3 | CMIP5 | HadISST2.0.0.0 | 2013 |
| ERA-20CM | final | Jan 1899 - Dec 2010 | Cy38r1 | CMIP5 | HadISST2.1.0.0 |
2014 |
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.
Product description
Note: Due to an error in the calculation of the daily monthly means (edmo) for a number of parameters for ERA-20CMv0, access to this stream has been disabled. Values from the daily monthly means values can be calculated via the synoptic monthly means (edmm) by averaging over the 8 time=0/to/21/by/3 fields for each month
ERA-20CMv0: See Hersbach et al (2013) for a detailed description.
ERA-20CM: See Hersbach et al (2015) for a detailed description.