Articles | Volume 15, issue 7
https://doi.org/10.5194/tc-15-3539-2021
https://doi.org/10.5194/tc-15-3539-2021
Research article
 | 
30 Jul 2021
Research article |  | 30 Jul 2021

Dynamic crack propagation in weak snowpack layers: insights from high-resolution, high-speed photography

Bastian Bergfeld, Alec van Herwijnen, Benjamin Reuter, Grégoire Bobillier, Jürg Dual, and Jürg Schweizer

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Cited articles

Alfarah, B., López-Almansa, F., and Oller, S.: New methodology for calculating damage variables evolution in Plastic Damage Model for RC structures, Eng. Struct., 132, 70–86, https://doi.org/10.1016/j.engstruct.2016.11.022, 2017. 
Bair, E. H., Simenhois, R., van Herwijnen, A., and Birkeland, K.: The influence of edge effects on crack propagation in snow stability tests, The Cryosphere, 8, 1407–1418, https://doi.org/10.5194/tc-8-1407-2014, 2014. 
Bergfeld, B., van Herwijnen, A., Bobillier, G., and Schweizer, J.: Measuring slope-scale crack propagation in weak snowpack layers, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-8369, https://doi.org/10.5194/egusphere-egu2020-8369, 2020. 
Bergfeld, B., van Herwijnen, A., Reuter, B., Bobillier, G., Dual, J., and Schweizer, J.: Dataset for “Dynamic crack propagation in weak snowpack layers: Insights from high-resolution, high-speed photography”, EnviDat, https://doi.org/10.16904/envidat.231, 2021. 
Birkeland, K. W., van Herwijnen, A., Reuter, B., and Bergfeld, B.: Temporal changes in the mechanical properties of snow related to crack propagation after loading, Cold Reg. Sci. Technol., 159, 142–152, https://doi.org/10.1016/j.coldregions.2018.11.007, 2019. 
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Short summary
The modern picture of the snow slab avalanche release process involves a dynamic crack propagation phase in which a whole slope becomes detached. The present work contains the first field methodology which provides the temporal and spatial resolution necessary to study this phase. We demonstrate the versatile capabilities and accuracy of our method by revealing intricate dynamics and present how to determine relevant characteristics of crack propagation such as crack speed.