A discrete element Lagrangian sea ice model

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Engineering Computations

ISSN: 0264-4401

Online from: 1984

Subject Area: Mechanical & Materials Engineering

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Document Information:
Title:	A discrete element Lagrangian sea ice model
Author(s):	Mark A. Hopkins, (US Army Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory, Hanover, New Hampshire, USA)
Citation:	Mark A. Hopkins, (2004) "A discrete element Lagrangian sea ice model", Engineering Computations, Vol. 21 Iss: 2/3/4, pp.409 - 421
Keywords:	Geographic regions, Ice cover, Modelling
Article type:	Research paper
DOI:	10.1108/02644400410519857 (Permanent URL)
Publisher:	Emerald Group Publishing Limited
Abstract:	The ice pack covering the Arctic basin is composed of a multitude of ice parcels of different areas, ages, thicknesses, and deformation histories that are frozen together into larger plates that combine and break apart in response to the demands of ever changing boundary conditions and forcing. Current Arctic sea ice models are Eulerian continuum models that use a plastic yield surface to characterize the constitutive behavior of the pack. An alternative is to adopt a discontinuous Lagrangian approach, based on a discrete element model and explicitly simulate individual ice parcels and the interactions between them. The mechanics of the Lagrangian sea ice model are outlined in detail along with the methods that will be used for validation.