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SUMMARY:Antarctic glacier geophysics - uncovering ice sheet evolution - Pr
 ofessor Martin Siegert\, University of Exeter
DTSTART:20251028T120000Z
DTEND:20251028T130000Z
UID:TALK237115@talks.cam.ac.uk
CONTACT:Ali Mashayek
DESCRIPTION:Six decades of radioglaciology in Antarctica\, through multi-s
 ensor airborne geophysical surveys\, has led to a 'first-order' depiction 
 of Antarctic subglacial topography - an essential input to numerical ice s
 heet modelling. Deeper inspection of recently-collected geophysical data h
 as also uncovered evidence for past glaciological\, hydrological and geolo
 gical changes in Antarctica. In this talk\, I will showcase recent advance
 s in our understanding of Antarctic evolution that have been gained from s
 uch assessment\; showcasing evidence of Pliocene ice sheet retreat\, the p
 reservation of pre-glacial surfaces and the break-up of Gondwana. I will a
 lso explain that our knowledge of subglacial Antarctic remains limited and
  how the 'next generation' of ice sheet bed measurements could lead to imp
 roved projections of global sea-level rise.\n
LOCATION:Department of Earth Sciences\, Tilley Lecture Theatre
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