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GEOSS Resource Details
Resource Basic Information
  Resource Id: urn:geoss:csr:resource:urn:uuid:2dd24bd3-6e01-4cdd-bfd3-8ce15773fe4c
  Name: ECMWF Interim Reanalysis (ERA-Interim): 1979-present
  Abbreviation: ERA-Interim
  Description: ERA-Interim was originally planned as an 'interim' reanalysis in preparation for the next-generation extended reanalysis to replace ERA-40. It uses a December 2006 version of the ECMWF Integrated Forecast Model (IFS Cy31r2). It originally covered dates from 1 Jan 1989 but an additional decade, from 1 January 1979, was added later. ERA-Interim is being continued in real time. The spectral resolution is T255 (about 80 km) and there are 60 vertical levels, with the model top at 0.1 hPa (about 64 km). The data assimilation is based on a 12-hourly four-dimensional variational analysis (4D-Var) with adaptive estimation of biases in satellite radiance data (VarBC). With some exceptions, ERA-Interim uses input observations prepared for ERA-40 until 2002, and data from ECMWF's operational archive thereafter. See Dee et al. (2011) in the references below for a full description of the ERA-Interim system.
  GEO Member or Participating Organisation :
ECMWF : European Centre for Medium-Range Weather Forecasts
  Responsible Organisation: ECMWF
  Resource Information URL:
  Resource Interface URL:
Resource Contact Information
  Contact Name: Dick Dee
  Contact Email:
Resource Category
Societal Benefit Areas
Resource Status
GEOSS Data Core
  GEOSS DataCore
Ontology Reference
  Water run-off
  Snow Cover Extent
  Sea Ice Cover
  Snow Depth
  Sea Surface Temperature
  Glacier/ice Sheet Extent
  Land Surface Temperature
  Soil Moisture
  Column Ozone Concentration
  Cloud Parameters (Other)
  Cloud Water/Ice Amounts
  Outgoing Longwave Radiation (Top of Atmosphere )
  Cloud Cover
  Surface Atmospheric Pressure
  Upper Level Humidity
  Surface Humidity
  Upper Level Winds
  Surface Wind Direction
  Surface Wind Speed
  Sea Ice Surface (Skin) Temperature
  Surface Albedo
  Upper Level Temperature
  Surface Air Temperature
Standard Classification
  File Transfer Protocol (FTP), Version 2.1, IETF RFC 959, October 1985
Standard Supportive
  WMO Manual on Codes
  NetCDF Network Common Data Form
Last Update Date
Date Modified