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RESEARCH PAPERS: Arctic Engineering

Deterioration of Floating Ice Covers

[+] Author and Article Information
G. D. Ashton

U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, N.H. 03755

J. Energy Resour. Technol 107(2), 177-182 (Jun 01, 1985) (6 pages) doi:10.1115/1.3231173 History: Received November 01, 1983; Revised December 10, 1984; Online October 22, 2009

Abstract

The deterioration of floating ice covers is analyzed to determine under what conditions the ice cover loses strength due to internal melting. The analysis considers the interaction between sensible heat transfer and long wave radiation loss at the surface, the surface albedo, the short wave radiation penetration and absorption and the unsteady heat conduction within the ice. The thermal analysis then leads to a determination of the porosity of the ice that allows strength analysis to be made using beam-type analyses. The results provide criteria to determine when and how rapidly the ice cover loses strength and under what conditions it will regain the original strength associated with an ice cover of full integrity.

Copyright © 1985 by ASME
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