Ice Block Stabilityby Steven F. Daly, US Army Cold Regions Research &, Engineering Lab, Hanover, NH, USA,
Document Type: Proceeding Paper
Part of: Water for Resource Development
A simple formulation of the forces acting on an ice block in contact with an intact ice cover is presented. Underturning of the ice block is the assumed mechanism by which the block is swept under the ice cover. The data can be divided into two separate cases, a shallow water case and a deep water case. The conditions of instability for each case are determined empirically. The resultant prediction of the velocity at which the block is swept under the cover is found to reproduce the data very well over the entire range of nondimensional ice block thicknesses. The 'no-spill' condition used in earlier formulations is not required.
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