Articles | Volume 13, issue 12
https://doi.org/10.5194/tc-13-3353-2019
https://doi.org/10.5194/tc-13-3353-2019
Research article
 | 
17 Dec 2019
Research article |  | 17 Dec 2019

Validating modeled critical crack length for crack propagation in the snow cover model SNOWPACK

Bettina Richter, Jürg Schweizer, Mathias W. Rotach, and Alec van Herwijnen

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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, https://doi.org/10.1016/S0165-232X(02)00074-5, 2002. a, b
Brun, E., David, P., and Sudul, M.: A numerical-model to simulate snow-cover stratigraphy for operational avalanche forecasting, J. Glaciol., 38, 13–22, https://doi.org/10.3189/S0022143000009552, 1992. a
Chalmers, T. S.: Forecasting shear strength and skier-triggered avalanches for buried surface hoar layers, MSc thesis, Dept. of Civil Eng., University of Calgary, Calgary, Canada, 2001. a
Davies, J. H. and Davies, D. R.: Earth's surface heat flux, Solid Earth, 1, 5–24, https://doi.org/10.5194/se-1-5-2010, 2010. a
Durand, Y., Giraud, G., Brun, E., Merindol, L., and Martin, E.: A computer-based system simulating snowpack structures as a tool for regional avalanche forecasting, J. Glaciol., 45, 469–484, https://doi.org/10.3189/S0022143000001337, 1999. a
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Short summary
Information on snow stability is important for avalanche forecasting. To improve the stability estimation in the snow cover model SNOWPACK, we suggested an improved parameterization for the critical crack length. We compared 3 years of field data to SNOWPACK simulations. The match between observed and modeled critical crack lengths greatly improved, and critical weak layers appear more prominently in the modeled vertical profile of critical crack length.