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Toward Reanalysis of the Arctic Climate System - Sea Ice and Ocean Reconstruction with Data Assimilation


The major goal of this project was to develop an integrated set of data assimilation procedures for the ice-ocean system that is able to provide gridded data sets that are physically consistent and constrained to the observations of sea ice and ocean parameters. The project uses modern four-dimensional variational (4D-Var, adjoint) data assimilation methods. Sea ice and ocean models with new data assimilation procedures were employed to maximize the integration of model results with observations and thus attempt to provide the arctic research community with complete and accurate data sets for 3 different climate regimes, namely: 1972-1978, 1989-1996, and 1997-2006. The reconstructed monthly mean water temperature, salinity and currents at standard for above mentioned climate regimes are provided in figures and in gridded digital form.

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Additional information

  • 1.0 (2010-10-07)
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Related projects
Spatial Type grid
Frequency monthly
Language English
Grant Code 628836
ISO Topic Categories
  • oceans
GCMD Science Keywords Expand keywords
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Temporal coverage

Begin datetime 1972-01-01 01:01:00
End datetime 2006-12-31 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 90.00, Minimum (South) Latitude: 68.00
Minimum (West) Longitude: -180.00, Maximum (East) Longitude: 180.00

Primary point of contact information

Andrey Proshutinsky <>

Additional contact information


Example citation following ESIP guidelines:

Proshutinsky, A., et al. 2010. Toward Reanalysis of the Arctic Climate System - Sea Ice and Ocean Reconstruction with Data Assimilation. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 05 Aug 2020.

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