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SUMMARY:Subglacial conditions on Pine Island Glacier\, West Antarctica: Re
 sults from ground-based geophysical surveys\; and plans for future activit
 ies with the iSTAR Programme - Dr Andy Smith\, British Antarctic Survey
DTSTART:20120516T153000Z
DTEND:20120516T163000Z
UID:TALK34005@talks.cam.ac.uk
CONTACT:Steven Palmer
DESCRIPTION:Pine Island Glacier is changing\; it is currently the single b
 iggest contributor to global sea level rise from the whole of the West Ant
 arctic Ice Sheet. The source of this change seems to be oceanographic\, bu
 t it is glaciological factors\, including interactions between the ice and
  its bed\, which control the nature of the glacier’s response.\n\nTwo re
 cent geophysical experiments illustrate the potential influence of subglac
 ial conditions on the dynamics of Pine Island Glacier. The first experimen
 t identified a subglacial geological boundary that appears to coincide wit
 h changes in ice flow and basal drag\; the second experiment measured subg
 lacial erosion of 32 m over a 49-year period. One conclusion from both exp
 eriments is the potential influence erosion can have on a glacier’s form
  and flow. Pine Island Glacier continues to be a focus for ice sheet stabi
 lity research. Plans are evolving for the next phase of this research with
  NERC’s iSTAR Programme.\n
LOCATION:Scott Polar Research Institute\, main lecture theatre
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