University of Cambridge > Talks.cam > British Antarctic Survey - Polar Oceans seminar series > The Weddell Polynya: when will it come back?

The Weddell Polynya: when will it come back?

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In the mid 1970s, an area the size of Italy remained ice free for three winters in a row in the central Weddell Sea near Antarctica, despite atmospheric temperatures under -20ยบC. This massive climatic anomaly, called the Weddell Polynya, has not recurred since. Recently, evidence for an impact of anthropogenic emissions on such climatic events, and furtive openings of the winter ice pack in the region, reignited interest in past and future occurrences of the Polynya. In this talk, I will discuss factors controlling polynya formation in the subpolar Southern Ocean and their projected evolution. Implications in the context of current observed trends in Southern Hemisphere climate will be evoked.

This talk is part of the British Antarctic Survey - Polar Oceans seminar series series.

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