Late Quaternary ice sheet dynamics and deglaciation history of the West Antarctic Ice Sheet in the Amundsen Sea Embayment: Preliminary results from recent research cruises


Contact
gerhard.kuhn [ at ] awi.de

Abstract

The threat, in terms of sea level rise, posed by the potential rapid deglaciation of West Antarctica means there is an urgent need to know more about the speed and style of marine ice sheet retreat. Quaternary deglacial events recorded in marine sediments provide an opportunity to understand the future of the modern day ice sheet. In this context, we examine the glacial history of a particularly poorly understood sector of the West Antarctic continental shelf the Amundsen Sea Embayment using new data from two recent research cruises. This extended abstract describes how marine geological and geophysical data are being used alongside terrestrial dating methods to understand the full extents, dynamics and retreat pattern of the West Antarctic Ice Sheet in the Amundsen Sea region during the last glacial cycle. These data hold significance for understanding and accurately modelling the stability and climate sensitivity of the West Antarctic Ice Sheet.



Item Type
Conference (Talk)
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Publication Status
Published
Event Details
Proceedings of the 10th International Symposium of Antarctic Earth Sciences, U.S. Geological Survey and The National Academies Open File Report, extended abstract..
Eprint ID
16809
Cite as
Graham, A. G. C. , Larter, R. B. , Gohl, K. , Hillenbrand, C. D. , Smith, J. A. , Johnson, J. S. and Kuhn, G. (2007): Late Quaternary ice sheet dynamics and deglaciation history of the West Antarctic Ice Sheet in the Amundsen Sea Embayment: Preliminary results from recent research cruises , Proceedings of the 10th International Symposium of Antarctic Earth Sciences, U.S. Geological Survey and The National Academies Open File Report, extended abstract. .


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