Item: Estimating dry snow density from grain form and hand hardness
Title: Estimating dry snow density from grain form and hand hardness
Proceedings: Proceedings of the 2000 International Snow Science Workshop, October 1-6, Big Sky, Montana
Authors: Torsten Geldsetzer and Bruce Jamieson, Dept. of Civil Engineering, University of Calgary, Calgary, Alberta, Canada, Dept. of Geology and Geophysics, University of Calgary
Abstract: Snow density has many applications in avalanche forecasting, including calculations of load over weak layers. However, density measurements of snowpack layers are often incomplete because of problems sampling thin layers on time constraints of fieldwork. This paper summarizes over 5000 density measurements of dry snow from the Columbia and Rocky Mountains of Western Canada between 1993 and 2000. The density values are regressed on hand hardness to yield a method for estimating density snow layers with known grain form and hard hardness. Standard errors give an indication of the quality of the estimate.
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Keywords: snow density, density estimation, hand hardness, grain form, avalanche forecasting
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