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SUMMARY:Surface meltwater on the polar ice sheets under a changing climate
  - Amber Leeson\, University of Lancaster
DTSTART:20180131T163000Z
DTEND:20180131T173000Z
UID:TALK99163@talks.cam.ac.uk
CONTACT:Ian Willis
DESCRIPTION:The Greenland and Antarctic ice sheets hold enough water to ra
 ise global sea level by nearly 80 metres were they to melt away completely
 . While total loss of either ice sheet is unlikely in our lifetime\, under
  current rates of climate change we can expect an ice-sheet contribution t
 o sea level of around 10 cm by 2100\; sufficient to double the number of p
 eople experiencing flooding worldwide. In addition to contributing directl
 y to global sea level rise\, ice sheet melting can act as a feedback to fu
 rther accelerate ice loss and can impact the way in which we interpret spa
 ceborne measurements of ice sheet volume change. As such\, it is important
  that 1) estimates and predictions of ice sheet melting are well constrain
 ed and 2) that we have a good understanding of the interactions between th
 e melt water and the solid ice. Melt water / ice-sheet interactions are pa
 rticularly interesting as on its way out to sea\, melt water passes throug
 h the supra- en- and sub-glacial environments where it can impact firn den
 sity\, the thermal regime of the ice sheet and the way in which the ice sl
 ides over its bed. Here we will present an overview of recent work in this
  area\, including a discussion on the role of temporary meltwater storage 
 and the implications of this for ice sheet stability.
LOCATION:Scott Polar Research Institute\, main lecture theatre
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