BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4//
BEGIN:VEVENT
UID:20260714T085104EDT-6214KRuO9v@132.216.98.100
DTSTAMP:20260714T125104Z
DESCRIPTION:Dr. Arnold Song joins us from the US Army Cold Regions Research
  and Engineering Laboratory for his seminar Should sea ice models be more 
 discrete?: High-resolution sea ice modeling with the discrete element meth
 od. Refreshments will be served.\n\nAbstract:\n\nWith the push toward high
 er and higher spatial resolution in sea ice models\, we enter a scale regi
 me where the continuum assumption breaks down and is no longer mechanicall
 y equivalent to the physical system. We present the CRREL Sea Ice model\, 
 which is based on the discrete element method (DEM)\, as an alternative nu
 merical framework for high-resolution modeling of sea ice dynamics. The CR
 REL Sea Ice model treats the ice pack and floes as a collection of ice “gr
 ains” to describe the sea ice as a system where the effects of element-to-
 element interaction significantly influence the mechanical behavior of the
  bulk material. These pieces of ice have sufficiently small length scales 
 to capture meter scale heterogeneity of the ice pack\, which may govern th
 e bulk behavior at the scale of interest (10-1000 km scale). To capture th
 is heterogeneity\, the shape\, thickness and a bond strength between adjac
 ent pieces of ice is explicitly described for each grain. In addition\, a 
 unique feature of the CRREL Sea Ice DEM is the capability to specify bond 
 strengths that are independent of ice grain thickness\, which enables the 
 model to mimic the presence of linear flaws in the ice. Our modeling appro
 ach has been successfully applied to model sea ice processes such as press
 ure ridging (Hopkins 1998)\, aggregation due to wave-ice interaction (Hopk
 ins & Shen 2001)\, and the mesoscale evolution of the floe size distributi
 on (Hopkins & Thorndike 2006).\n
DTSTART:20151016T193000Z
DTEND:20151016T203000Z
LOCATION:Room 934\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Seminar: Dr. Arnold Song
URL:/channels/event/seminar-dr-arnold-song-256138
END:VEVENT
END:VCALENDAR