Your search for Subject weak layersresulted in 67 records.
Back to Home page
View previous 15 results View next 15 results
- Title: A Modified Extended Column Test to Reduce Slab Degradation: Preliminary Results
- Date: 2012
- Authors: Maggi Kraft, Matt Wieland, Jordy Hendrikx
- Description: Snow profiles and stability tests are commonly used to evaluate the strength of the
snowpack. While conducting a stability test such as the extended ...
- Object ID: issw-2012-1028-1032.pdf
- Keywords: slabs, weak layer, snowpack stability test,
- View additional details about A Modified Extended Column Test to Reduce Slab Degradation: Preliminary Results
- Title: Spatial Variabiity of Snowpack on Small Wind Effected Slopes, Central Svalbard
- Date: 2012
- Authors: Wesley R. Farnsworth, Markus Eckerstorfer, Hanne H. Christiansen
- Description: Spatial variability studies of snowpack stability have predominantly been conducted on sheltered uniform slopes despite mountains and avalanche starti...
- Object ID: issw-2012-467-472.pdf
- Keywords: spatial variability, snowpack, slopes, artificial trigger points, weak layer
- View additional details about Spatial Variabiity of Snowpack on Small Wind Effected Slopes, Central Svalbard
- Title: Depth Hoar, Avalanches, and Wet Slabs: A Case Study of the Historic March, 2012 Wet Slab Avalanche Cycle at Bridger Bowl, Montana
- Date: 2012
- Authors: Alex Marienthal, Jordy Hendrikx, Doug Chabot, Pete Maleski, Karl Birkeland
- Description: During this past winter, southwest Montana had many large avalanches and days of high avalanche danger. In the Bridger Mountains the most prominent an...
- Object ID: issw-2012-062-068.pdf
- Keywords: bridger mountains, hoar layer, wet slab avalanche, dry slab avalanche, rain on snow
- View additional details about Depth Hoar, Avalanches, and Wet Slabs: A Case Study of the Historic March, 2012 Wet Slab Avalanche Cycle at Bridger Bowl, Montana
- Title: The Effectiveness of Boot Packing for Snowpack Stabilization
- Date: 2012
- Authors: Matt Wieland, Jordy Hendrikx, Karl W. Birkeland
- Description: Depth hoar is a persistent weak layer that is a common instability problem in the snowpack of many areas around the world. Boot packing or compaction ...
- Object ID: issw-2012-993-997.pdf
- Keywords: hoarfrost, weak layer, boot packing, snow density
- View additional details about The Effectiveness of Boot Packing for Snowpack Stabilization
- Title: Experience is Not Enough: Persistent Weak Layers in Western Canada 2007 – 2010
- Date: 2010
- Authors: Karl Klassen
- Description: The winters of 2007/08, 2008/09, and 2009/10 in British Columbia were characterized by numerous persistent weak layers (PWLs). Professional avalanche ...
- Object ID: ISSW_O-032.pdf
- Keywords: weak layers, human factors, avalanche practitioners
- View additional details about Experience is Not Enough: Persistent Weak Layers in Western Canada 2007 – 2010
- Title: Snow Characterization by Facet Number and Size From Snow Pit Wall Photographs
- Date: 2010
- Authors: Mathias Gergely, Martin Schneebeli
- Description: Faceted snow within a natural snowpack often weakens its stability, with depth hoar being a prime example for a persistent weak layer. Traditionally, ...
- Object ID: ISSW_P-005.pdf
- Keywords: faceted snow, depth hoar, persistent weak layers, snow properties, wind-pressed snow
- View additional details about Snow Characterization by Facet Number and Size From Snow Pit Wall Photographs
- Title: The Relationship Between Measured Snow Hardness and Shear Strength
- Date: 2010
- Authors: Peter Höller, Reinhard Fromm
- Description: Snow hardness is an important parameter in avalanche forecasting; however, hardness has not that relevance as the shear strength of snow. On the other...
- Object ID: ISSW_P-021.pdf
- Keywords: snow hardness, shear strength, push-pull gauge
- View additional details about The Relationship Between Measured Snow Hardness and Shear Strength
- Title: The Avalanche Situation in a Special Winter. Review of the 09/10 Season in Norway
- Date: 2010
- Authors: Christian Jaedicke, Kjetil Brattlien, Regula Frauenfelder, Krister Kristensen, Kalle Kronholm
- Description: The 2009/10 season featured significantly different snow conditions compared to the
usually maritime snow pack in most of Norway. A stable high-press...
- Object ID: ISSW_P-070.pdf
- Keywords: high-pressure system, depth hoar, weak layers, fatalities
- View additional details about The Avalanche Situation in a Special Winter. Review of the 09/10 Season in Norway
- 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: 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: 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: Faceted Melt Forms, a Deadly and Unpredictable Weak Layer
- Date: 2009
- Authors: Bill Glude
- Description: Faceted melt forms are a particularly persistent and difficult-to-predict weak layer we
have commonly found in Alaska and in the Japanese Alps. This ...
- Object ID: issw-2009-0092-0096.pdf
- Keywords: avalanche, case histories, persistent weak layer, facets, faceted melt forms
- View additional details about Faceted Melt Forms, a Deadly and Unpredictable Weak Layer
- Title: Measurements of Weak Snowpack Layer Friction
- Date: 2009
- Authors: Alec van Herwijnen, Joachim Heierli
- Description: An essential stage in the release of an avalanche is the propagation of a fracture through a weak snowpack layer. As the fracture propagates, the slab...
- Object ID: issw-2009-0112-0114.pdf
- Keywords: particle image velocimetry, friction, weak layers, avalanche formation
- View additional details about Measurements of Weak Snowpack Layer Friction
- Title: Evolving Shear Strength, Stability and Snowpack Properties in Storm Snow
- Date: 2006
- Authors: Catherine Brown, Bruce Jamieson
- Description: There is a lack of measurements on the rapidly changing mechanical and physical
properties of non-persistent instabilities in storm snow. Given the i...
- Object ID: issw-2006-015-021.pdf
- Keywords: non-persistent weak layers, storm snow, shear strength, stability indices
- View additional details about Evolving Shear Strength, Stability and Snowpack Properties in Storm Snow
View previous 15 results View next 15 results
Back to Home page