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SUMMARY:Double-Diffusive Convection in the Arctic Ocean - Nicole Shibley\,
  Department of Earth and Planetary Sciences\, Yale University
DTSTART:20201116T130000Z
DTEND:20201116T140000Z
UID:TALK152281@talks.cam.ac.uk
CONTACT:Prof. Jerome Neufeld
DESCRIPTION:Double diffusion is a type of mixing process that may arise in
  the oceans where temperature and salinity determine density gradients. Ac
 tive double-diffusive convection manifests as stacked well-mixed water lay
 ers\, forming a staircase structure. The Arctic Ocean exhibits a prominent
  double-diffusive staircase which indicates how deep-ocean heat is mixed u
 pward toward the sea ice. In this talk\, I will discuss a one-dimensional 
 mathematical model to examine how this double-diffusive heat transport may
  be influenced by mechanical mixing\, or turbulence\, such as that driven 
 by winds and waves. I will also discuss how a 15-year observational record
  of the Arctic’s thermocline displays a shift in double-diffusive stairc
 ase structure under Arctic warming.
LOCATION:Zoom webinar - link to follow
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