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SUMMARY:An event-based approach to understanding decadal variability in th
 e Atlantic Meridional Overturning Circulation - Lesley Allison (University
  of Reading)
DTSTART:20130710T130000Z
DTEND:20130710T140000Z
UID:TALK44178@talks.cam.ac.uk
CONTACT:Dr Andrew Meijers
DESCRIPTION:Many coupled climate models exhibit natural decadal-scale vari
 ability in the strength of the Atlantic Meridional Overturning Circulation
  (AMOC)\, with detectable climatic impacts\, and there is some evidence th
 at suggests this type of variability may also exist in the real ocean.  As
  part of the RAPID-WATCH RAPIT (Risk Assessment\, Probability and Impacts 
 Team) project\, we aim to improve our understanding of AMOC variability\na
 nd its impacts by examining the largest discrete unforced decadal-scale AM
 OC events in a variety of coupled climate models. \n\nA multi-model compar
 ison of discrete AMOC fluctuation events is carried out\, exploring charac
 teristics such as their magnitude and meridional coherence.  We then ident
 ify climatic impacts associated with the events\, and assess their robustn
 ess across the events in each model\, and between the different models.  W
 e determine whether the impacts of the largest events differ from the impa
 cts inferred from simple regression analysis\, and explore the causes of a
 symmetries between the impacts of strengthening and weakening AMOC events.
 \n
LOCATION:British Antarctic Survey\, Room 330B
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