2C (2010-2011): Geophysical Study of Ice Stream Stick-slip dynamics

• Central Washington University, United States of America

New observations have revealed that changes in ice sheets are occurring at rates far exceeding
the millennial time scales predicted by traditional models (Paterson, 1994). Our inability to fully
model these changes limits our ability to make predictions about their future contributions to
sea-level rise (Intergovernmental Panel on Climate Change, 2007). Many of these changes are
taking place in the large ice streams and outlet glaciers that drain the interiors of ice sheets. One
such dynamic region is the Whillans Ice Stream (WIS), a large outlet for ice that drains from the
interior of the West Antarctic Ice Sheet (WAIS) into the Ross Ice Shelf.

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