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Martin O'Leary, Department of Atmospheric, Oceanic and Space Sciences, University of Michigan
Wednesday 19 October 2011, 16:30-17:30
Why do glaciers fall apart?
- đ¤ Speaker: Martin O'Leary, Department of Atmospheric, Oceanic and Space Sciences, University of Michigan
- đ Date & Time: Wednesday 19 October 2011, 16:30 - 17:30
- đ Venue: Scott Polar Research Institute, main lecture theatre
Abstract
Most of the time, glaciologists treat ice as a highly viscous fluid, something quite different from our everyday experience of the material. However, near the margins of ice sheets and glaciers, our intuitive ideas of ice as a brittle solid become more important. A broad family of processes lead to the breakup of the ice, and the calving of icebergs. While the details of the fracture process are still unknown, it is possible to say a lot about the sensitivity of calving by examining the response of the stress field within the glacier to changes at the margins. In this talk I will discuss some of these effects, focusing on the response of tidewater glaciers to frontal melting.
Series This talk is part of the Scott Polar Research Institute - Polar Physical Sciences Seminar series.
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