University of Cambridge > Talks.cam > British Antarctic Survey - Polar Oceans seminar series > Coupled ice-ocean modelling of the Amundsen Sea glaciers

Coupled ice-ocean modelling of the Amundsen Sea glaciers

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Glaciers in the Pacific sector of West Antarctica are losing mass at an accelerating rate. Superimposed on this long-term trend are interannual variations in mass balance that result from a combination of internal ice dynamics and variability in ocean-induced ice shelf melt rates. We explore the relative importance of these internal and external drivers of change, using a newly developed coupling between the 3D ocean model MITgcm, and the SSA ice flow model Úa. For present-day ocean conditions, we simulate persistent retreat of the Pine Island, Thwaites, Smith and Kohler grounding lines, and demonstrate complex changes in melt rate caused by the evolving cavity geometries.

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

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