Circumpolar Influences on the Weddell Sea: Indication of an Antarctic Circumpolar Coastal Wave


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dolbers [ at ] awi-bremerhaven.de

Abstract

The Antarctic Circumpolar Wave is now a well-known feature that can bedetected in atmospheric, oceanic mixed layer, and sea ice data. Inour coupled ice-ocean model driven by 40 years of daily atmosphericforcing data it represents a significant part of the interannualvariability, linking the sea ice and water mass formation processes inthe Weddell Sea with other areas in the Antarctic water ring. Inaddition our model results show a decadal-period wavelike anomalypattern near the coast of Antarctica, propagating westward at about 2cm/s. This coastally trapped, bottom-intensified phenomenonseems to have important effects on the dense water formation rate inthe Weddell Sea and even the occurrence of the Weddell polynya.



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ISI/Scopus peer-reviewed
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Published
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4136
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Beckmann, A. and Timmermann, R. (2001): Circumpolar Influences on the Weddell Sea: Indication of an Antarctic Circumpolar Coastal Wave , Journal of Climate, 14 , pp. 3785-3792 .


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