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SUMMARY:Why do glaciers fall apart? - Martin O'Leary\, Department of Atmos
 pheric\, Oceanic and Space Sciences\, University of Michigan
DTSTART:20111019T153000Z
DTEND:20111019T163000Z
UID:TALK33988@talks.cam.ac.uk
CONTACT:Steven Palmer
DESCRIPTION:Most of the time\, glaciologists treat ice as a highly viscous
  fluid\, something quite different from our everyday experience of the mat
 erial. However\, near the\nmargins of ice sheets and glaciers\, our intuit
 ive 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 possi
 ble to say a lot about the sensitivity of calving by examining the respons
 e of the stress field within the glacier to changes at the margins. In thi
 s talk I will discuss some of these effects\, focusing on the response of 
 tidewater glaciers to frontal melting.
LOCATION:Scott Polar Research Institute\, main lecture theatre
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