RESTRICTED only accessable in ZMAW net or via CliSAP login What does that mean?
ERA-Interim is the latest global atmospheric reanalysis, which was produced by the "European Centre for Medium Range Weather Forecasts" (ECMWF). The ERA-Interim-project was carried out inorder to replace the previous atmospheric reanalysis ERA-40. So far it dates back to 1979 and has been continued to the present. The forecast model, data assimilation method and input data sets for ERA-Interim are described in the articles mentioned in the references, where the performance of the system is discussed, too. Problems that occurred in ERA-40 have been treated with improved methods in this new reanalysis. The identified problems were the hydrological cycle, the quality of the stratospheric circulation, and the time consistency of the analyzed fields. The number of pressure levels from ERA-40 has been increased from 23 to 37 levels and additional cloud parameters are included. The use is now free for both scientific and commercial purposes.
Coverage, spatial and temporal resolution
Period and temporal resolution:
Coverage and spatial resolution:
These are model data based on measured data. Possible sources of errors are faulty measured data that are assimilated into the model, as well as simplifications or even errors in the model. The quality of the data assimilation has been improved significantly compared to ERA40 and the model has a high quality. For details have a look on the project site at the ECMWF.
Name: Annika Jahnke-Bornemann
Email: annika.bornemann@ zmaw.de