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|Title:||Some mechanical properties of alpine snow, Montana, 1964-66|
|Authors:||Keeler, Charles M. (Charles Martyn)|
Weeks, W. F.
Snow physical properties
Beartooth Mountains, Montana
Bridger Range, Montana
|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.)) ; 227.|
Abstract: Data on the physical properties of seasonal alpine snow have been collected from the Beartooth Mountains near Cooke City, Montana, and the Bridger Range near Bozeman, Montana. Systematic measurements of snow density, temperature, structure, ram and Canadian hardness, centrifugal tensile strength and shear strength measured with a shear box and several types of shear vanes are included. Test results were grouped according to gross snow types and whether the snow was wet or dry. Interrelations between the different test parameters were studied. Experiments were also conducted to study the sources of error in making in-situ mechanical tests on snow without using a pit wall. The main factor contributing to the experirnental scatter is lateral inhomogeneity in the snow cover. However, the standard deviation of a group of strength tests is shown to be directly proportional to the mean value of the group. The systematic relations between snow properties invariably become obscured when different snow "types" are indiscriminantly grouped together.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Research Report|
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