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- Title: Field Experiments on Weak Layer Failure and Crack Propagation Due to Explosives
- Date: 2014-09-29
- Authors: Stephan Simioni, Jürg Schweizer, Jürg Dual
- Description: Avalanche control by explosives is among the key temporary preventive measures and fixed avalanche control installations are frequently installed toda...
- Object ID: ISSW14_paper_O8.02.pdf
- Keywords: avalanche control, avalanche formation, weak layer failure, crack propagation
- View additional details about Field Experiments on Weak Layer Failure and Crack Propagation Due to Explosives
- Title: Field Observations of the Effects of Explosives on Snow Density and Snow Stability Test Results
- Date: 2014-09-29
- Authors: Robyn E. Wooldridge, Jordy Hendrikx, Daniel A. Miller
- Description: Ski areas, highway departments and other avalanche programs around the world routinely use explosives to both initiate avalanches and to test snowpack...
- Object ID: ISSW14_paper_P1.30.pdf
- Keywords: stability tests, extended column test, compression test, propagation, explosives.
- View additional details about Field Observations of the Effects of Explosives on Snow Density and Snow Stability Test Results
- Title: On the Failure Criterion of Weak Snowpack Layers Using the Discrete Element Method
- Date: 2014-09-29
- Authors: Johan Gaume, Guillaume Chambon, Ingrid Reiweger, Alec van Herwijnen, Jürg Schweizer
- Description: The release of dry-snow slab avalanches start with a local failure in a weak snow layer underlying a cohesive slab followed by crack propagation withi...
- Object ID: ISSW14_paper_P2.11.pdf
- Keywords: snow avalanche, failure criterion, mohr-coulomb, crack propagation, discrete element modeling, snow slab, weak layer.
- View additional details about On the Failure Criterion of Weak Snowpack Layers Using the Discrete Element Method
- Title: Field Measurements and Modeling of Wave Induced Weak Layer Failure Due to an Explosion
- Date: 2014-09-29
- Authors: Stephan Simioni, Rolf Sidler, Jürg Schweizer, Jürg Dual
- Description: Little is known about the mechanisms involved when triggering avalanches artificially by explosions. Here we test the hypothesis that weak layer failu...
- Object ID: ISSW14_paper_P2.22.pdf
- Keywords: avalanche release, avalanche control, wave propagation in snow, numerical modeling
- View additional details about Field Measurements and Modeling of Wave Induced Weak Layer Failure Due to an Explosion
- Title: Examining the Slope Scale Spatial Variability of Extended Column Test Results
- Date: 2014-09-29
- Authors: Ian Hoyer, Jordy Hendrikx, Karl W. Birkeland
- Description: Though a significant amount of research examines the spatial variability of snow stability at the slope scale, most of that work focuses on tests prim...
- Object ID: ISSW14_paper_P2.29.pdf
- Keywords: extended column test, spatial variability, stability evaluation, propagation.
- View additional details about Examining the Slope Scale Spatial Variability of Extended Column Test Results
- Title: The PST with a Twist: Comparing the Standard PST to the Cross Slope PST
- Date: 2014-09-29
- Authors: Eric Knoff
- Description: In recent years, the propagation saw test (PST) gained popularity for both avalanche professionals and backcountry recreationalists. A limiting factor...
- Object ID: ISSW14_paper_P2.30.pdf
- Keywords: propagation saw test (pst), cross-slope propagation saw test (cpst), extended columntest (ect), critical cut length, slope-angle, fracture propagation
- View additional details about The PST with a Twist: Comparing the Standard PST to the Cross Slope PST
- Title: Uncut Column Stability Tests For Hard Slab Snow Conditions
- Date: 2013-10-07
- Authors: Wesley R. Farnsworth, Markus Eckerstorfer
- Description: This study aims to better understand a slabs influence on the mechanics of artificial
avalanches. It seems that stability tests do not represent stab...
- Object ID: ISSW13_paper_O2-01.pdf
- Keywords: slab properties, propagation saw test, hard slab, uncut columns
- View additional details about Uncut Column Stability Tests For Hard Slab Snow Conditions
- Title: Edge Effects In Propagation Tests
- Date: 2013-10-07
- Authors: Edward H. Bair, Ron Simenhois, Alec van Herwijnen, Karl Birkeland
- Description: Guidelines suggest beams with lengths around 1 m for Extended Column Tests (ECTs) and Propagation Saw Tests (PSTs). The longest unstable tests publish...
- Object ID: ISSW13_paper_O5-02.pdf
- Keywords: crack propagation, extended column test, propagation saw test
- View additional details about Edge Effects In Propagation Tests
- Title: The Influence of Near-Surface Warming on Slab Stiffness and Crack Propagation Propensity
- Date: 2012
- Authors: Benjamin Reuter, Jürg Schweizer
- Description: Near-surface warming by either an increase in air temperature or radiation is believed to have a significant effect on dry-snow slab avalanche formati...
- Object ID: issw-2012-028-031.pdf
- Keywords: near-surface warming, propagation propensity, snow pack, slabs,
- View additional details about The Influence of Near-Surface Warming on Slab Stiffness and Crack Propagation Propensity
- Title: Using High-Speed Video to Better Understand Extended Column Tests
- Date: 2012
- Authors: Karl W. Birkeland, Alec van Herwijnen
- Description: Extended Column Tests (ECTs) have become increasingly popular for assessing snowpack stability. However, we still do not fully understand what happen...
- Object ID: issw-2012-098-103.pdf
- Keywords: extended column test, propagation saw test, snowpack stability test,
- View additional details about Using High-Speed Video to Better Understand Extended Column Tests
- Title: Slab Avalanche Crown Surface Fractography: Observations and Applications
- Date: 2012
- Authors: Dave Gauthier
- Description: Fractography is the study of the morphological fracture surface features in artificial and natural materials, including bone and rock. Several pattern...
- Object ID: issw-2012-115-120.pdf
- Keywords: crack propagation, fracture-line, crowns
- View additional details about Slab Avalanche Crown Surface Fractography: Observations and Applications
- Title: Lautaret Avalanche Test Site: Outcomes from the 11th April 2012 Event
- Date: 2012
- Authors: Xavier Ravanat, Hervé Bellot, Frederic Ousset, Emmanuel Thibert, Mohamed Naaim
- Description: The Lautaret full-scale avalanche test site has been used by Cemagref-Irstea since the early 70’s. The first studies were dedicated to avalanch...
- Object ID: issw-2012-622-627.pdf
- Keywords: snow, avalanche, experimental test-site, propagation model
- View additional details about Lautaret Avalanche Test Site: Outcomes from the 11th April 2012 Event
- Title: The Propagation Saw Test (PST): A Review of its Development, Applications, and Recent Research
- Date: 2012
- Authors: Dave Gauthier, Bruce Jamieson
- Description: The Propagation Saw Test (PST) method was developed independently in Switzerland and in Canada in 2005 and 2006. It was inspired partly by observation...
- Object ID: issw-2012-1047-1053.pdf
- Keywords: fracture propagation, snow stability tests, avalanche safety
- View additional details about The Propagation Saw Test (PST): A Review of its Development, Applications, and Recent Research
- Title: Deformation Analysis of the Propagation Saw Test
- Date: 2010
- Authors: Chris Borstad, David McClung
- Description: We present results of high speed photography films which show that the scale of slope
normal deformation prior to unstable fracture in the propagatio...
- Object ID: ISSW_O-009.pdf
- Keywords: propagation saw test, kootenay pass, british columbia
- View additional details about Deformation Analysis of the Propagation Saw Test
- Title: Predicting Wet Snow Avalanches at the Arapahoe Basin Ski Area
- Date: 2010
- Authors: Leif Eric Borgeson, Hal Hartman
- Description: Premature terrain closures, due to wet snow instability, lead to unhappy skiers during the annual snowmelt period. Furthermore, wet snow avalanches ar...
- Object ID: ISSW_O-031.pdf
- Keywords: wet snow instability, wetting fronts, crack propagation pathways
- View additional details about Predicting Wet Snow Avalanches at the Arapahoe Basin Ski Area
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