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SUMMARY:Has springy-ness come to the North Atlantic? - Yueng-Djern Lenn\, 
 Bangor University
DTSTART:20260130T160000Z
DTEND:20260130T170000Z
UID:TALK243385@talks.cam.ac.uk
CONTACT:Duncan Hewitt
DESCRIPTION:Northwards ocean heat transport is critical for maintaining th
 e mild climate of Western Europe. As sun-warmed currents from the tropics 
 reach the subpolar and polar latitudes\,\nthey lose heat to the atmosphere
  and whatever sea ice is present\, gaining density in the process and sink
 ing away from the surface. This deep convection feeds into south-ward\nret
 urning flows as part of the Atlantic meridional overturning circulation (A
 MOC) in a process that redistributes heat around the globe. Climate models
  indicate that freshwater released from ice melt and other processes from 
 the Arctic and Greenland will enter the North\nAtlantic\, where it could r
 emain at the surface because its low salt content makes it lighter than sa
 ltier seawater below. Thin layers of surface freshwater would warm up more
  rapidly in summer and lose heat more rapidly in winter than thicker surfa
 ce mixed layers would. So the future North Atlantic may be fresher and war
 mer\, aka more “springy”\, at the surface in summer. Such springiness 
 has the potential to limit deep convection in the subpolar North Atlantic.
  We combine observations with coupled models to determine if the fingerpri
 nts of springiness are already present in the North Atlantic.
LOCATION:MR2
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