BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The Recent Increase of Antarctic Sea Ice Extent - Prof. John Turne
 r\, British Antarctic Survey
DTSTART:20111117T161500Z
DTEND:20111117T173000Z
UID:TALK33896@talks.cam.ac.uk
CONTACT:Dr Alex Archibald
DESCRIPTION:Over the last 30 years there has been a marked decrease in the
  extent of sea ice across the Arctic Ocean\, with the greatest loss in the
  Autumn. However\, over the same period the extent of sea ice across the S
 outhern Ocean as a whole has increased at a statistically significant rate
 \, with the greatest increase being in the austral Autumn. But this trend 
 masks large regional variations\, with there having been a small increase 
 of ice around the coast of East Antarctica and large losses (increases) in
  the Bellingshausen (Ross) Seas. Various theories have been put forward to
  explain the observed trends involving oceanic changes\, greater precipita
 tion onto the sea ice and changes in atmospheric circulation\, at least in
  part resulting from the loss of stratospheric ozone. This talk will exami
 ne the changes in sea ice observed in satellite data and consider how clim
 ate model runs for the last 30 years simulate the observed trends.     
LOCATION:Pfizer  Lecture Theatre\,  Department of Chemistry
END:VEVENT
END:VCALENDAR