Characterizing snow instability with avalanche problem types derived from snow cover simulations

B Reuter, L Viallon-Galinier, S Horton… - Cold Regions Science …, 2022 - Elsevier
Snow cover models support avalanche forecasting. However, despite much development to
derive snow instability from snow cover model output, snow cover models presently do not …

[HTML][HTML] Investigating the release and flow of snow avalanches at the slope-scale using a unified model based on the material point method

J Gaume, A van Herwijnen, T Gast, J Teran… - Cold Regions Science …, 2019 - Elsevier
Snow slab avalanches start with a failure in a weak snow layer buried below a cohesive
snow slab. After failure, the very porous character of the weak layer leads to its volumetric …

[HTML][HTML] On the relation between avalanche occurrence and avalanche danger level

J Schweizer, C Mitterer, F Techel, A Stoffel… - The …, 2020 - tc.copernicus.org
In many countries with seasonally snow-covered mountain ranges warnings are issued to
alert the public about imminent avalanche danger, mostly employing an ordinal, five-level …

Numerical investigation of crack propagation regimes in snow fracture experiments

G Bobillier, B Bergfeld, J Dual, J Gaume… - Granular matter, 2024 - Springer
A snow slab avalanche releases after failure initiation and crack propagation in a highly
porous weak snow layer buried below a cohesive slab. While our knowledge of crack …

A depth‐averaged material point method for shallow landslides: Applications to snow slab avalanche release

L Guillet, L Blatny, B Trottet, D Steffen… - Journal of Geophysical …, 2023 - Wiley Online Library
Shallow landslides pose a significant threat to people and infrastructure. Despite significant
progress in the understanding of such phenomena, the evaluation of the size of the …

Modeling snow slab avalanches caused by weak-layer failure–Part 2: Coupled mixed-mode criterion for skier-triggered anticracks

PL Rosendahl, P Weißgraeber - The Cryosphere, 2020 - tc.copernicus.org
Using the analytical model presented in Part 1 of this two-part paper, a new conceptual
understanding of anticrack nucleation in weak layers is proposed. To obtain a sufficient …

[HTML][HTML] A random forest model to assess snow instability from simulated snow stratigraphy

S Mayer, A van Herwijnen, F Techel… - The Cryosphere, 2022 - tc.copernicus.org
Modeled snow stratigraphy and instability data are a promising source of information for
avalanche forecasting. While instability indices describing the mechanical processes of dry …

A data exploration tool for averaging and accessing large data sets of snow stratigraphy profiles useful for avalanche forecasting

F Herla, P Haegeli, P Mair - The Cryosphere, 2022 - tc.copernicus.org
Snowpack models can provide detailed insight about the evolution of the snow stratigraphy
in a way that is not possible with direct observations. However, the lack of suitable data …

Temporal evolution of crack propagation characteristics in a weak snowpack layer: conditions of crack arrest and sustained propagation

B Bergfeld, A van Herwijnen… - … Hazards and Earth …, 2022 - nhess.copernicus.org
For a slab avalanche to release, the system, consisting of a weak layer below a cohesive
slab, must facilitate crack propagation over large distances–a process we call dynamic crack …

[HTML][HTML] On the importance of snowpack stability, the frequency distribution of snowpack stability, and avalanche size in assessing the avalanche danger level

F Techel, K Müller, J Schweizer - The Cryosphere, 2020 - tc.copernicus.org
Consistency in assigning an avalanche danger level when forecasting or locally assessing
avalanche hazard is essential but challenging to achieve, as relevant information is often …