ERA Interim is the name of a global atmospheric reanalysis project at ECMWF, processing data from 1979 to date. ERA Interim is one of several ERA projects with similar scope carried out at ECMWF.

The ERA Interim project produces a single dataset, referred to as ERA Interim dataset. The ERA Interim dataset is continuously updated in near real time as new data becomes available.

Product description

Parameters and download

For a list of fields (parameters) in ERA Interim and download see the ECMWF dataserver.

Note that we are aware of several quality issues with ERA-Interim data.

Further documentation

See Berrisford et al. (2011) for detailed documentation of the parameters in this dataset.

An open-access journal article describing the ERA-Interim reanalysis is available from the Quarterly Journal of the Royal Meteorological Society. Additional details of the modelling and data assimilation system used to produce ERA-Interim can be found in the IFS documentation (choose Cy31r1) .

Further detailed documentation on ERA Interim is available in the ECMWF eLibrary.