Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/5930
Title: Theory of densification of dry, bubbly glacier ice
Authors: University of Miami.
Bader, Henri, 1907-
Keywords: Glaciers
Glacier ice
Ice
Ice cores
Ice density
Measurement
Porosity
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 141.
Description: Research Report
Summary: Density and air-bubble pressure data obtained from ice cores from Site 2, Greenland, are analyzed to determine porosity at the pore close-off level, which is found to have a very small standard deviation. A theory of densification of bubbly ice is developed on the assumption that the rate of decrease in porosity is proportional to pore volume and to the difference between absolute load pressure and air bubble pressure. The determination of pore close-off porosity in principle requires only the measurement of the weight of a sample, and the volume of air liberated upon melting, ρ, reduced to in situ temperature and average atmospheric pressure at a given pore closeoff level. The theory has led to the derivation of a useful equation for approximating the value of the integral exp t^m(dt) for m> 1.
URI: http://hdl.handle.net/11681/5930
Appears in Collections:CRREL Research Report

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