International Snow Science Workshop Proceedings - Montana State University Library

skip navigation

Digital Collections Home

Your search for Subject weak layersresulted in 67 records.

Title: The SME Avalanche Tragedy of January 20, 2003: A Summary of the Data
Date: 2004
Authors: Dick Penniman, Frank Baumann
Description: On January 20, 2003 guided skiers and snowboarders with the Selkirk Mountain Experience (SME) Company climbed a 310 meter long, 36°-37° avalanch...
Object ID: issw-2004-520-530.pdf
Keywords: couloir, wind-loading, weak layer, terrain risk
View additional details about The SME Avalanche Tragedy of January 20, 2003: A Summary of the Data

Title: Collaboration Between University and Operation in Developing a New National Standard for Avalanche Work in Sweden
Date: 2004
Authors: Stefan Martensson
Description: Sweden is currently developing a new national standard for avalanche work. Much of the new paradigms in both education and practice are inspired from...
Object ID: issw-2004-723.pdf
Keywords: triggered avalanche, slab avalanche, education, persistent layers
View additional details about Collaboration Between University and Operation in Developing a New National Standard for Avalanche Work in Sweden

Title: Observations of an Increase in Slab Thickness After Fracture
Date: 2004
Authors: Robbie Fuller
Description: In the fracturing of snow peripheral to avalanches and in events where slabs have fractured but did not slide, the failed, or downslope, part of the ...
Object ID: issw-2004-032-038.pdf
Keywords: strain, elastic, rebound
View additional details about Observations of an Increase in Slab Thickness After Fracture

Title: Fracture of Layered Snow by Cohesive Zone Technique and Experiments
Date: 2004
Authors: S. Senthil, P. Mahajan, S.K. Joshi
Description: One mechanism responsible for avalanche initiation is the weak bond between snow layers. Experiments under controlled conditions at the cold lab are ...
Object ID: issw-2004-064.pdf
Keywords: fracture, snow layers, cohesive zone, fem
View additional details about Fracture of Layered Snow by Cohesive Zone Technique and Experiments

Title: Avalanche Accident Case Study: Persistent Buried Weak Layer in the Central Idaho Mountains
Date: 2002
Authors: Doug Abromeit, Bozo Cardozo
Description: A helicopter ski guide died in an avalanche at 3:00 pm on February 10, 1996 while guiding clients on a large west-facing slope in the Smoky Mountains ...
Object ID: issw-2002-194-199.pdf
Keywords: avalanche accidents, snow creep, buried surface hoar
View additional details about Avalanche Accident Case Study: Persistent Buried Weak Layer in the Central Idaho Mountains

Title: Analysis of Weak Layer Avalanche Activity in the Columbia Mountains, British Columbia, Canada
Date: 2002
Authors: Pascal Hageli, David M. McClung
Description: This study uses avalanche observations to characterize the spatial characteristics and temporal avalanche activity patterns on persistent weak layers....
Object ID: issw-2002-001-007.pdf
Keywords: persistent weak layers, avalanche climate, avalanche forecasting
View additional details about Analysis of Weak Layer Avalanche Activity in the Columbia Mountains, British Columbia, Canada

Title: Modeling the Interface Between Two Layers of Snow
Date: 2002
Authors: H.P. Marshall
Description: Although dry slab avalanches in maritime climates can occur due to failure within a layer, avalanches in more continental climates are often caused by...
Object ID: issw-2002-314-322.pdf
Keywords: snow slope stability, finite element modeling, weak layers, interfaces
View additional details about Modeling the Interface Between Two Layers of Snow

Title: Snowpack Characteristics Found in Hakuba, Northern Alps, Japan
Date: 2002
Authors: Shinji Ikeda
Description: Snowpack properties aiming at avalanche safety for backcountry recreations were investigated at Hakuba, NORTHAN ALPS, JAPAN. Snow profile results of t...
Object ID: issw-2002-361-365.pdf
Keywords: snow cover structure, snow cover distribution, avalanche, japan northan alps
View additional details about Snowpack Characteristics Found in Hakuba, Northern Alps, Japan

Title: Estimating the Strength of Faceted Snow Layers for an Avalanche Forecasting Model
Date: 2002
Authors: Antonia Zeidler, Bruce Jamiesona
Description: Current multivariate forecasting models make limited use of stability indices partly because the required manual measurements of snowpack properties a...
Object ID: issw-2002-130-137.pdf
Keywords: snow stratigraphy, snow properties, snow strength, avalanche forecasting, slab avalanches, snow crystals
View additional details about Estimating the Strength of Faceted Snow Layers for an Avalanche Forecasting Model

Title: A Field Method for Identifying Structural Weaknesses in the Snowpack
Date: 2002
Authors: Ian McCammon, Jurg Schweizer
Description: Recent studies have confined what experienced avalanche workers have known for years: that human triggered avalanches often coincide with specific str...
Object ID: issw-2002-477-481.pdf
Keywords: avalanche forecasting, snow stratigraphy, snow stability evaluation, avalanche education
View additional details about A Field Method for Identifying Structural Weaknesses in the Snowpack

Title: Modeling Snow Slab Release Using a Visco-Elastic, Temperature Dependent Constitutive Model and Weak Layers
Date: 2002
Authors: M. Stoffel, P. Bartelt
Description: A widely accepted theory of slab avalanche formation assumes the existence of "super weak" layers. Because a weak layer cannot effectively transmit th...
Object ID: issw-2002-521-522.pdf
Keywords: temperature, slab, weak layer, snowpack glide, visco-elastic
View additional details about Modeling Snow Slab Release Using a Visco-Elastic, Temperature Dependent Constitutive Model and Weak Layers

Title: The Timing, Size, and Impact of Avlanches on the Milford Highway, New Zealand
Date: 2000
Authors: H. Conway, W. Carran, A. Carran
Description: The timing of direct-action avalanches that threaten the Milford Highway can often be predicted to within a few hours by keeping track of the stress f...
Object ID: issw-2000-167-172.pdf
Keywords: snow, avalanches, sub-surface layers
View additional details about The Timing, Size, and Impact of Avlanches on the Milford Highway, New Zealand

Title: Field Data and Theory for Human Triggered Whumpfs and Remote Avalanches
Date: 2000
Authors: Ben Johnson, Bruce Jamiesona, Colin Johnston
Description: Remotely triggered avalanches and whumpfs (sometimes called "settlements") are common occurrences in many mountains ranges, but have received little r...
Object ID: issw-2000-208-214.pdf
Keywords: avalanche release, persistent weak layers, fracture propagation
View additional details about Field Data and Theory for Human Triggered Whumpfs and Remote Avalanches

Title: Contrasting Stability Trends of Two Surface Hoar Layers in the Columbia Mountains, British Columbia, Canada
Date: 2000
Authors: Thomas S. Chalmers, Bruce Jamiesona
Description: Buried layers of surface hoar pose a challenge to avalanche forecasters in many areas. Some layers stabilize quickly and others remain unstable for a ...
Object ID: issw-2000-094-100.pdf
Keywords: surface hoar, snow stability, skier triggering, avalanches
View additional details about Contrasting Stability Trends of Two Surface Hoar Layers in the Columbia Mountains, British Columbia, Canada

Title: An Objective Snow Profile Comparison Method
Date: 2000
Authors: Michael Lehning, Charles Fierz, Chris Lundy
Description: With the increasing use of numerical models predicting the snow cover status, the need for a simple and standardized evaluation procedure arises. We p...
Object ID: issw-2000-440-446.pdf
Keywords: snow pit, profile, snow cover simulation, snowpack, evaluation, grain type
View additional details about An Objective Snow Profile Comparison Method