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ArcticRIMS: 2m Air Temperature From ERA-40 Re-Analysis , Aggregated by Administrative Regions


This data set provides estimates of daily mean two meter air temperature from the European Center for Medium Range Weather Forecasts (ECMWF) ERA-40 Reanalysis (ECMWF 2002). Data cover the period 1 January 1979 to 31 August 2002. Data were obtained from the National Center for Atmospheric Research (NCAR) Data Support Section, dataset ds117.0 (). Two meter temperatures are archived as 6 hour mean values. Daily means were computed from these values. Data were regridded from the native N80 (roughly 1 degree resolution) reduced Gaussian grid to the Equal-Area Scalable Earth (EASE) 25km grid using a bilinear interpolation scheme. This scheme is described in ECMWF [2003]. The ERA-40 system assimilates available surface temperature observations. Fields should therefore be superior to those from the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) Equal-Area Scalable Earth Grid (EASE-Grid) re-analysis, in which there is no assimilation of surface temperature data.

The data is presented in 24 sub-datasets of different spatial and temporal aggregations.

Data access

Additional information

  • 1.0 (2009-10-21)
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Related projects
Spatial Type grid
Frequency criteria
Language English
Grant Code 230243, 0531354
ISO Topic Categories
  • climatologyMeteorologyAtmosphere
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 1979-01-01 00:00:00
End datetime 2002-08-31 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 90.00, Minimum (South) Latitude: 45.00
Minimum (West) Longitude: -180.00, Maximum (East) Longitude: 180.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Example citation following ESIP guidelines:

Lammers, R., Serreze, M., Barrett, A. 2009. ArcticRIMS: 2m Air Temperature From ERA-40 Re-Analysis , Aggregated by Administrative Regions. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 22 Oct 2020.

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