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Title: The sintering process in snow
Authors: Ramseier, René O.
Keeler, Charles M. (Charles Martyn)
Keywords: Snow
Ice crystals
Ice crystal diffusion
Freezing nuclei
Phase transition
Compressive strength
Mass Transfer
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.)) ; 226.
Description: Research Report
Abstract: The growth of bonds between snow grains or ice spheres has been variously attributed to surface diffusion, volume diffusion, and evaporation-condensation. To distinguish among these possible mechanisms the unconfined compressive strength of two groups of snow samples was determined as a function of time. One group was allowed to sinter under atmospheric conditions while the other group vias kept immersed in silicone oil. The much lower rate of strengthening of the latter group suggests that evaporation-condensation must be the major mechanism of mass transport in snow under atmospheric conditions. The possible magnitudes of the various mass transfer coefficients are discussed.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Research Report

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