University of Cambridge > Talks.cam > British Antarctic Survey - Polar Oceans seminar series > Links between Southern Ocean dynamics and Antarctic ice melt

Links between Southern Ocean dynamics and Antarctic ice melt

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Improving our knowledge of ice shelf-ocean interactions is a critical step toward reducing uncertainty in future sea level rise projections. It is now evident that ocean–driven basal melt is the major cause of ice loss from Antarctica’s fringing ice shelves. However, much of the fundamental dynamics of how the ocean delivers heat to the ice shelves remains unresolved. Progress in this area requires bringing together the fields of ice shelf–ocean interactions and large–scale Southern Ocean oceanography. The Southern Ocean overturning entails the upwelling of Circumpolar Deep Water (CDW) offshore Antarctica. Since CDW is linked to the highest ice shelf thinning rates yet observed, the variability of the CDW properties and its interaction with the ice shelves is the focus of this work. I will show early results showing variability of CDW during the last 50 years.

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

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