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SUMMARY:The effect of landfast sea ice buttressing on the glaciers of the 
 Larsen B Embayment - Trystan Surawy-Stepney\, University of Leeds
DTSTART:20240627T120000Z
DTEND:20240627T130000Z
UID:TALK218338@talks.cam.ac.uk
CONTACT:Dr Birgit Rogalla
DESCRIPTION:In January 2022 the landfast sea ice that had been present in 
 the Larsen-B Embayment for the previous 11 years disintegrated. Major chan
 ges to the dynamic and calving behaviour of the largest ocean-terminating 
 glaciers in the region quickly followed including the speed up of Hektoria
 \, Green\, and Crane glaciers by approximately 20%–50% between February 
 and the end of 2022\, following a decade of gradual slow-down. Circumstant
 ially\, this is attributable to their transition into tidewater glaciers f
 ollowing the loss of their ice shelves after the landfast sea ice evacuati
 on. However\, a question remains as to whether the landfast sea ice could 
 have had a direct influence on the dynamics of these glaciers\, or the sta
 bility of their ice shelves\, through a buttressing effect akin to that of
  confined ice shelves on grounded ice streams. Using a mixture of remote s
 ensing observations and diagnostic modelling\, we explore this possibility
  and conclude that sea ice likely exerts its influence through other mecha
 nisms.
LOCATION:BAS Seminar Room 1\; https://bas-ac-uk.zoom.us/j/94373277038
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