Articles | Volume 16, issue 3
https://doi.org/10.5194/nhess-16-775-2016
https://doi.org/10.5194/nhess-16-775-2016
Research article
 | 
18 Mar 2016
Research article |  | 18 Mar 2016

Snow instability evaluation: calculating the skier-induced stress in a multi-layered snowpack

Fabiano Monti, Johan Gaume, Alec van Herwijnen, and Jürg Schweizer

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Revised manuscript accepted for NHESS
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Cited articles

Bartelt, P. and Lehning, M.: A physical SNOWPACK model for the Swiss avalanche warning: Part I: numerical model, Cold Reg. Sci. Technol., 35, 123–145, 2002.
Boussinesq, J.: Application des Potentials a l'Etude de l'Equilibre et du Mouvement des Solides Elastiques, Gauthier-Villars, Paris, France, 508 pp., 1885.
Bufler, H.: Theory of elasticity of a multilayered medium, J. Elasticity, 1, 125–143, 1971.
Burmister, D. M.: The general theory of stresses and displacements in layered systems. I, II, III, J. Appl. Phys., 16, 89–94, 1945.
Camponovo, C. and Schweizer, J.: Measurements on skier triggering, in: Proceedings International Snow Science Workshop, Banff, Alberta, Canada, 100–103, 1997.
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We propose a new approach based on a simplification of the multi-layered elasticity theory in order to easily compute the additional stress due to a skier at the depth of the weak layer, taking into account the layering of the snow slab and the substratum. The method was tested on simplified snow profiles, then on manually observed snow profiles including a stability test and, finally, on simulated snow profiles, thereby showing the promise of our approach.
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