The European Center for Medium-Range Weather Forecasts' ERA-Interim reanalysis uses the Integrated Forecast System, cycle 31r2 (IFS-Cy31r2) and covers the period from 1979 to the present. CDS provides access to the ERA-Interim reanalysis data through the ESGF ana4MIPs project for the purpose of comparing Reanalysis data to Observational data, the IPCC AR5 Climate Model data, as well as other Reanalyses. 

Spatial Coverage: Global 
Temporal Coverage: 1979 - present 
Data Resolution: .75° x .75° For more information, see the ERA-Interim page 
Data Access

ESGF    Select "Project=ana4MIPs"