A Coupled Atmosphere - Sea Ice Model Study of the Role of Sea Ice in Climatic Predictability
Two ensembles of four October 1 to December 10 simulations with a coupled atmosphere-sea ice model are made and a 30-day mean climatic state is calculated for each ensemble for the period of November 11 to December 10. Initially, the light ice ensemble has a thick ice cover extending southward to 75(DEGREES)N. The heavy ice ensemble has, in addition, a 0.25 m thick layer of ice covering 75% of the area along latitudes 69(DEGREES)N and 64(DEGREES)N. The southward advance of sea ice is limited by the model to 64(DEGREES)N. The two ensemble-mean climatic states are compared to determine how the initial difference in ice cover evolves with time and whether statistically significant differences in the atmospheric circulation exist.
University of Illinois - Urbana-Champaign
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University of Illinois at Urbana-Champaign