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ABSTRACT

Based on Arnt Eliassen's papers on the transverse circulation at baroclinic zones, we study the influence of heat fluxes from the ocean. The paper first examines a particular weather situation over the Arctic Ocean, where a front separates very cold air over the ice cover from warmer air over the open water. The paper aims at showing that an observed increase of the wind force might be caused by the intense heating of the cold air over the water. For this purpose, we devise an analytical solution of the Eliassen equation. The fortunate location of the front in relation to the observations permits a comparison between the observed wind and the wind estimated from the equation. It is suggested that many tragic shipwrecks along the border of the ice may be explained in this way.