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- Title
A Multithickness Sea Ice Model Accounting for Sliding Friction.
- Authors
Wilchinsky, Alexander V.; Feltham, Daniel L.; Miller, Paul A.
- Abstract
A multithickness sea ice model explicitly accounting for the ridging and sliding friction contributions to sea ice stress is developed. Both ridging and sliding contributions depend on the deformation type through functions adopted from the Ukita and Moritz kinematic model of floe interaction. In contrast to most previous work, the ice strength of a uniform ice sheet of constant ice thickness is taken to be proportional to the ice thickness raised to the 3/2 power, as is revealed in discrete element simulations by Hopkins. The new multithickness sea ice model for sea ice stress has been implemented into the Los Alamos “CICE” sea ice model code and is shown to improve agreement between model predictions and observed spatial distribution of sea ice thickness in the Arctic.
- Subjects
ARCTIC Ocean; SLIDING friction; SEA ice; DEFORMATION of surfaces; KINEMATICS; THERMAL stresses; OCEAN-atmosphere interaction; ICE sheets; THICKNESS measurement
- Publication
Journal of Physical Oceanography, 2006, Vol 36, Issue 9, p1719
- ISSN
0022-3670
- Publication type
Article
- DOI
10.1175/JPO2937.1