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- 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: 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: Changes in Stability Test Usage by Snowpilot Users
- Date: 2012
- Authors: Karl W. Birkeland, Doug Chabot
- Description: Professionals and recreationists utilize stability tests to assess snow stability. Our goal is to determine whether or not people are changing the typ...
- Object ID: issw-2012-1065-1068.pdf
- Keywords: snow pit, snow stability, avalanche fractures
- View additional details about Changes in Stability Test Usage by Snowpilot Users
- Title: Numerical Modeling of Fracture Propagation in Slabs
- Date: 2010
- Authors: Chris Borstad, David McClung
- Description: We present the results of numerical simulations of tensile failure of snow samples. Several material models for quasibrittle tensile failure were impl...
- Object ID: ISSW_O-042.pdf
- Keywords: fracture propagation, slab avalanche, elastic modulus, fracture energy
- View additional details about Numerical Modeling of Fracture Propagation in Slabs
- Title: Some Insights Into Fracture Propagation in Weak Snowpack Layers
- Date: 2010
- Authors: Joachim Heierli, Alec van Herwijnen, Peter Gumbsch, Michael Zaiser
- Description: Dry snow slab avalanches form when fracture, once initiated in a weak snowpack layer, propagates over large distances, progressively debonding a vast ...
- Object ID: ISSW_P-078.pdf
- Keywords: dry snow, weak snowpack layers, fracture
- View additional details about Some Insights Into Fracture Propagation in Weak Snowpack Layers
- 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: The Effect of Additional Snow Load on Extended Column Test and Propagation Saw Test Results
- Date: 2010
- Authors: Ron Simenhois, Karl Birkeland
- Description: The number of skier triggered dry slab avalanches typically increases during or shortly after snow loading events. However, field observations and res...
- Object ID: ISSW_O-041.pdf
- Keywords: extended column test, propagation saw test, snow, dry slab
- View additional details about The Effect of Additional Snow Load on Extended Column Test and Propagation Saw Test Results
- Title: On the Sustainability and Arrest of Weak Layer Fracture in Whumpfs and Avalanches
- Date: 2010
- Authors: Dave Gauthier, Bruce Jamieson
- Description: Recent theoretical and practical descriptions of weak layer fracture have focused on the mechanics of achieving a state of propagation, which is assum...
- Object ID: ISSW_O-043.pdf
- Keywords: whumpfs, avalanches, en-echelon slab fractures,
- View additional details about On the Sustainability and Arrest of Weak Layer Fracture in Whumpfs and Avalanches
- Title: A Field Method for Measuring Slab Stiffness and Weak Layer Fracture Energy
- Date: 2010
- Authors: Alec van Herwijnen, Joachim Heierli
- Description: Traditional field measurements, such as snow profiles and stability tests, are widely used to provide information on snow cover stability for avalanch...
- Object ID: ISSW_O-044.pdf
- Keywords: fracture energy, slab, avalanche forecasting,
- View additional details about A Field Method for Measuring Slab Stiffness and Weak Layer Fracture Energy
- Title: Fracture Energy of Weak Snowpack Layers
- Date: 2010
- Authors: Jürg Schweizer, Alec van Herwijnen, Benjamin Reuter
- Description: Recent experimental and theoretical work has provided new insight into weak layer fracture in view of dry-snow slab avalanche release. The two main pa...
- Object ID: ISSW_P-079.pdf
- Keywords: snowpack layers, fracture, dry snow
- View additional details about Fracture Energy of Weak Snowpack Layers
- Title: Validating the Propagation Saw Test on the Slope Scale
- Date: 2009
- Authors: Cameron Ross, Bruce Jamieson
- Description: Over the past few seasons, the Propagation Saw Test (PST) has gained increasing
acceptance in some guiding and highway operations in western North Am...
- Object ID: issw-2009-0282-0286.pdf
- Keywords: fracture propagation, snowpack stability, propagation saw test, avalanche forecasting
- View additional details about Validating the Propagation Saw Test on the Slope Scale
- Title: Fracture Line Profiles in Japan
- Date: 2009
- Authors: Shinji Ikeda
- Description: Numerous studies have been conducted on snow pack characteristics associated
with avalanches formation, mainly in North America and Europe. In recent...
- Object ID: issw-2009-0334-0335.pdf
- Keywords: snowpack stratigraphy, weak layer, structural weakness, snow climate, avalanche forecasting
- View additional details about Fracture Line Profiles in Japan
- Title: Field Study on Fracture Propagation in Weak Snowpack Layers
- Date: 2008-09-22
- Authors: Alec van Herwijnen, Joachim Heierli, Jürg Schweizer
- Description: Instabilities in snow slopes generally involve the progressive fracture along a weak snowpack layer. Recent field observations on fractures in weak la...
- Object ID: P__8213.pdf
- Keywords: snow avalanche, avalanche release, fracture mechanics, fracture propagation
- View additional details about Field Study on Fracture Propagation in Weak Snowpack Layers
- Title: Anticracks: A New Theory of Fracture Initiation and Fracture Propagation in Snow
- Date: 2008-09-22
- Authors: J. Heierli, A. van Herwijnen, P. Gumbsch, M. Zaiser
- Description: Shear failure models have traditionally dominated the research on slab avalanche initiation in snow science, but evidence has accumulated that they te...
- Object ID: P__8212.pdf
- Keywords: fracture, anticrack, packing order
- View additional details about Anticracks: A New Theory of Fracture Initiation and Fracture Propagation in Snow
- Title: Validation of the Propagation Saw Test Near Whumpfs and Avalanches
- Date: 2008-09-22
- Authors: Dave Gauthier, Cameron Ross, Bruce Jamieson
- Description: The Propagation Saw Test (PST) is a recently developed field test method for evaluating the fracture propagation propensity of slab and weak layer com...
- Object ID: P__8216.pdf
- Keywords: propagation propensity, field test, instability assessment, snowpack properties, forecasting
- View additional details about Validation of the Propagation Saw Test Near Whumpfs and Avalanches
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