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- observations;
- analysis and forecast fields from the assimilating atmospheric model at full resolution;
- analysis and forecast fields from the atmospheric model evaluated at standard pressure levels;
- analysis and forecast fields from the atmospheric model evaluated on isentropic and PV = ± 2 surfaces;
- analysis and forecast fields from the coupled ocean-wave model on its regular 1.5° x1.5° latitude/longitude grid;
- monthly means, variances and covariances;
- feedback from the data assimilation for each observation supplied to it;
- selected diagnostic and derived data.
Data access
Data is archived at ECMWF and available for download from ECMWF data services.
References
Kållberg, P., A. Simmons, S. Uppala, and M. Fuentes, 2007: ERA-40 Project Report Series, 17. The ERA-40 Archive, 31pp, https://www.ecmwf.int/node/10595
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