The Compression of Wet Snow

The compressibility of wet snow is described in terms of pressure melting and nonlinear viscous deformation at grain contacts. The results of experiments with different salinities and liquid water contents are compared with computed densities. The decreasing compressibility of wet snow with increasi...

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Bibliographic Details
Main Authors: Colbeck,S C, Shaw,K A, Lemieux,G
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1978
Subjects:
Snow
Ice and Permafrost
Mechanics
*SNOW
*COMPRESSIVE PROPERTIES
EXPERIMENTAL DATA
LIQUIDS
DEFORMATION
TEST EQUIPMENT
PARTICLES
MELTING
PRESSURE
SALINITY
VISCOSITY
FLUID FLOW
COLD WEATHER TESTS
PE61102A
WU001
AST24
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA055246
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA055246
Description
Summary:The compressibility of wet snow is described in terms of pressure melting and nonlinear viscous deformation at grain contacts. The results of experiments with different salinities and liquid water contents are compared with computed densities. The decreasing compressibility of wet snow with increasing salinity and decreasing liquid content is quantified and explained. Simultaneous particle growth and the doubly charged layer at phase boundaries are included in the model. The results show that the density of wet snow increases approximately as a power of time but is highly dependent on the stress, initial particle size, liquid water content, and ionic impurity content of the snow. (Author)

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