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SUMMARY:Rapid sea-level rise in the Antarctic Shelf Sea in response to inc
 reased glacial discharge - Craig Rye\, University of Southampton
DTSTART:20140827T130000Z
DTEND:20140827T140000Z
UID:TALK53448@talks.cam.ac.uk
CONTACT:Dr Alexander Brearley
DESCRIPTION:The Antarctic shelf seas are of great climatic importance due 
 to their vigorous interactions with the atmosphere and cryosphere\, which 
 influence continental deglaciation\, global sea level\, and the production
  of dense bottom waters. However\, understanding of these interactions and
  their impacts is confounded by sea ice\, which covers the region for much
  of the year. In particular\, little is known about the local oceanic resp
 onse to the recent changes in Antarctic freshwater discharge. Here\, we us
 e satellite measurements of sea surface height (SSH) during ice-free month
 s and an ocean circulation model to show that over the last two decades (1
 992-2011) Antarctic coastal sea level has risen at least 2 ± 0.8 mm/yr ab
 ove the regional mean south of 50°S\, and that this signal is a steric ad
 justment to increased glacial melt from Antarctica. Our findings demonstra
 te the strength of the sea level response to accelerating Antarctic discha
 rge\, and expose a significant climatic perturbation to the cryospheric fo
 rcing of the Southern Ocean. 
LOCATION:British Antarctic Survey\, Room 307
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