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EOF analysis of three records of sea-ice concentration spanning the last 30 years

Singarayer, J. S. (2003) EOF analysis of three records of sea-ice concentration spanning the last 30 years. Geophysical Research Letters, 30 (5). 1251. ISSN 0094-8276

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To link to this item DOI: 10.1029/2002GL016640


Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets. These are the National Ice Center charts, and two passive microwave radiometer datasets derived using different approaches: the NASA team and Bootstrap algorithms. Empirical orthogonal function (EOF) analyses were employed to compare modes of variability and their consistency between the datasets. The analysis was motivated by the need for a reliable, realistic sea ice climatology for use in climate model simulations, for which both the variability and absolute values of extent and concentration are important. We found that, while there are significant discrepancies in absolute concentrations, the major modes of variability derived from all records were essentially the same.

Item Type:Article
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:34509
Publisher:American Geophysical Union


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