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SUMMARY:Longstanding and prognosticative aspects of wave-ice interactions 
 in MIZs and coastal ice covers - Vernon Squire (University of Otago)
DTSTART:20220923T080000Z
DTEND:20220923T083000Z
UID:TALK178340@talks.cam.ac.uk
DESCRIPTION:After providing some contextual details relevant to modelling 
 sea ice\, marginal ice zones (MIZs) and wave-ice interaction generally ―
  mindful of the severe impact of global climate change\, I will identify t
 he conservative and dissipative processes that cause ocean waves to be att
 enuated as they travel in sea ice. This will be done by showing establishe
 d examples\, acknowledging that the dissipative fluid mechanics involved i
 s less well developed than the scattering that redistributes wave energy a
 s opposed to reducing it\, and that several field measurements suggest a p
 ower law relationship between wave number and frequency. Recent coastal da
 ta collected using bottom-mounted pressure sensors in the Sea of Okhotsk w
 ill also be presented\, focusing on the presence of infragravity waves pro
 pagating under shore fast sea ice from MIZ-like drift ice as well as waves
  traversing open water\, the existence of trapped barotropic edge waves an
 d standing leaky wave modes. I will also comment on the potential occurren
 ce of a shelf wave detected under the sea ice in the Laptev Sea.&nbsp\; To
  finish\, some suggestions will be made relating to desirable target areas
  for future MIZ research.
LOCATION:Seminar Room 1\, Newton Institute
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