MODELING OF THE ATMOSPHERIC RESPONSE TO MELTING OF ARCTIC SEA ICE

V. Ya. Galin and E. M. Volodin

The atmospheric response to melting of Arctic sea ice is studied using the atmospheric model developed at the Institute of Numerical Mathematics of the Russian Academy of Sciences (INM RAS). The response of Arctic surface temperature to a change in sea-ice concentration in winter is much stronger than in summer, but its influence on midlatitude circulation is weak. Even the response to the unrealistically strong perturbation of ice is localized over the Arctic, and the change in circulation over surrounding continents is small.

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