The mechanical origin of snow avalanche dynamics and flow regime transitions

Li, Xingyue; Sovilla, Betty; Jiang, Chenfanfu; Gaume, Johan

doi:https://doi.org/10.5194/tc-14-3381-2020

Articles | Volume 14, issue 10

https://doi.org/10.5194/tc-14-3381-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-14-3381-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 10

Research article

|

12 Oct 2020

Research article |

| 12 Oct 2020

The mechanical origin of snow avalanche dynamics and flow regime transitions

Xingyue Li, Betty Sovilla, Chenfanfu Jiang, and Johan Gaume

Data sets

Supplementary data for "The mechanical origin of snow avalanche dynamics and flow regime transitions" Xingyue Li, Betty Sovilla, Chenfanfu Jiang, and Johan Gaume https://doi.org/10.5281/zenodo.3965795

Video supplement

Supplementary videos for "The mechanical origin of snow avalanche dynamics and flow regime transitions" Xingyue Li, Betty Sovilla, Chenfanfu Jiang, and Johan Gaume https://doi.org/10.5281/zenodo.3944698

Short summary

This numerical study investigates how different types of snow avalanches behave, how key factors affect their dynamics and flow regime transitions, and what are the underpinning rules. According to the unified trends obtained from the simulations, we are able to quantify the complex interplay between bed friction, slope geometry and snow mechanical properties (cohesion and friction) on the maximum velocity, runout distance and deposit height of the avalanches.