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CATEGORIES:Quaternary Discussion Group (QDG)
SUMMARY:The West Antarctic Ice Sheet and sea level in the 
 last interglacial - Eric Wolff\, Department of Ear
 th Sciences\, and the WACSWAIN team
DTSTART;TZID=Europe/London:20240207T173000
DTEND;TZID=Europe/London:20240207T190000
UID:TALK210097AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/210097
DESCRIPTION:There is intense interest in the future stability 
 of the West Antarctic Ice Sheet (WAIS). Models ran
 ge widely in their predictions and in the physics 
 they include. We can constrain possible outcomes b
 y observing what happened to ice sheets at previou
 s times when the polar regions were warmer than pr
 esent. The last interglacial (LIG) is a particular
 ly important time because both Greenland and Antar
 ctic temperature were higher than present and so w
 as sea level.\n\nWithin the WACSWAIN (WArm Climate
  Stability of the West Antarctic ice sheet in the 
 last INterglacial) project\, in 2019 we retrieved 
 a 651 metre ice core to the bed of Skytrain Ice Ri
 se. This ice rise is adjacent to the Ronne Ice She
 lf and the WAIS\, and therefore sensitive to their
  extent. The ice core has been processed and analy
 sed continuously for a range of analytes\, and we 
 can show that ice from the LIG is present.\n\nI wi
 ll start by describing the project\, fieldwork and
  analyses. Eventually\, I will show what happened 
 to the ice around Skytrain Ice Rise in the LIG\, a
 nd discuss how this fits with other evidence about
  LIG sea level.
LOCATION: Harker 2\, Department of Earth Sciences\, Downing
  Street
CONTACT:Jinheum Park
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