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SUMMARY:Evaluation of an Elastic-Decohesive Rheology for Sea Ice - Kara Pe
 terson (Sandia National Laboratories)
DTSTART:20171208T100000Z
DTEND:20171208T110000Z
UID:TALK96367@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Satellite data obtained over the last couple decades have prov
 ided a wealth of information on sea ice motion and deformation for use in 
 model comparison and validation. The data clearly show that ice deformatio
 n is focused along narrow linear features\, which we would like to capture
  accurately in models. In this talk we describe an elastic-decohesive rheo
 logy that explicitly includes discontinuities in the deformation field to 
 represent sea ice cracks. We compare results from an implementation in the
  UNM MPM sea ice model and a preliminary implementation in the LANL CICE m
 odel with RADARSAT Geophysical Processor System deformation data and resul
 ts from the standard elastic-viscous-plastic rheology.
LOCATION:Seminar Room 1\, Newton Institute
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