Plastic Modelling of Glaciers and Outlets
In reconstruction of past ice sheets a plastic approach is often used in order to get a quick estimate of the shape and thickness of an ice sheet. The basic in the model has been that the bottom shear stress is assumed constant along a flowline (Orowan, 1949). This gives a simple calculation scheme for an ice sheet profile with an arbitrary bed surface. The unit “force” that cause this bottom shear stress is popularly called “driving stress”.
KeywordsAccumulation Rate Yield Shear Stress Valley Glacier Bottom Shear Stress Elevation Contour
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