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- Title: Evaluating the Importance of Crystal-Type on New Snow Instability: A Strength vs. Stress Approach Using the SNOSS Model
- Date: 2008-09-22
- Authors: Jerry Casson, Mark Stoelinga, John Locatelli
- Description: Understanding new snow instability is the key factor in predicting the release of direct action avalanches during storm cycles. The compaction rates, ...
- Object ID: P__8046.pdf
- Keywords: crystal-type, shear strength, densification, direct action avalanche, stability
- View additional details about Evaluating the Importance of Crystal-Type on New Snow Instability: A Strength vs. Stress Approach Using the SNOSS Model
- Title: Statistical Assessment of Regional Avalanche Danger Using Parameters from the Snow Cover Model Snowpack
- Date: 2008-09-22
- Authors: Michael Schirmer, Michael Lehning, Jürg Schweizer
- Description: Numerical avalanche prediction with statistical methods using meteorological input parameters has shown insufficient results, mainly since snow cover ...
- Object ID: P__8182.pdf
- Keywords: avalanche forecasting, numerical simulation, snow cover model, snow cover stability, nearest neighbor, feature selection, genetic algorithm
- View additional details about Statistical Assessment of Regional Avalanche Danger Using Parameters from the Snow Cover Model Snowpack
- Title: On the Predictability of Snow Avalanches
- Date: 2008-09-22
- Authors: Jürg Schweizer
- Description: Snow avalanches are generally rare and occasionally extreme events. In the general context of prediction and predictably of extreme events, we will ex...
- Object ID: P__8205.pdf
- Keywords: snow stability evaluation, avalanche forecasting, risk management
- View additional details about On the Predictability of Snow Avalanches
- Title: Character of Naturally Triggered Avalanches and Cornice Failures
- Date: 2008-09-22
- Authors: Robert A. Burrows, David M. Mcclung
- Description: Three meteorologically-related triggers of slab avalanches and cornice failure are observed by avalanche workers: (1) Snow loading during storm and wi...
- Object ID: P__8198.pdf
- Keywords: snow stability, avalanche, cornice, avalanche trigger
- View additional details about Character of Naturally Triggered Avalanches and Cornice Failures
- Title: AK Block Project Status Update 2008
- Date: 2008-09-26
- Authors: Bill Glude, Randall S. Mullen
- Description: The AK Block is a large block snow test sized to the tester's weight and their ski or snowboard contact length, dug out on three sides, and loaded muc...
- Object ID: P__8059.pdf
- Keywords: avalanche, snow stability tests, block tests, sized-block, ak block, rutschblock
- View additional details about AK Block Project Status Update 2008
- Title: Enso and Avalanche Fatalities: Is there a Correlation?
- Date: 2008-09-22
- Authors: Mark Moore
- Description: Preliminary statistical evidence suggests that some correlation may exist between ENSO (El Niño Southern Oscillation) events and annual North Ameri...
- Object ID: P__8068.pdf
- Keywords: weather, snowpack evolution, avalanche fatality, snowpack structure, character of the winter
- View additional details about Enso and Avalanche Fatalities: Is there a Correlation?
- Title: Minimizing “False-Stable†Stability Test Results: Why Digging More Snowpits is a Good Idea
- Date: 2006
- Authors: Karl W. Birkeland, Doug Chabot
- Description: The worst nightmare for an avalanche worker is to assess an unstable slope as stable since the consequence of such an assessment is that you, your cli...
- Object ID: issw-2006-498-504.pdf
- Keywords: avalanche forecasting, stability assessment, stability tests, false-stable conditions
- View additional details about Minimizing “False-Stable†Stability Test Results: Why Digging More Snowpits is a Good Idea
- Title: Uncertainties in Assessing the Stability of Fractured Slopes
- Date: 2006
- Authors: Karl W. Birkeland, Scott Savage, Simon Trautman, Kalle Kronholm, Spencer Logan, Jürg Schweizer
- Description: While doing avalanche mitigation work or traveling in the backcountry, occasionally a
sizable part of a slope fractures without triggering an avalanc...
- Object ID: issw-2006-029-037.pdf
- Keywords: snow stability, fracture, whumpf, avalanche release, avalanche forecasting
- View additional details about Uncertainties in Assessing the Stability of Fractured Slopes
- 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
- Title: Uncertainties in Assessing the Stability of Fractured Slopes
- Date: 2006
- Authors: Karl W. Birkeland, Scott Savage, Simon Trautman, Kalle Kronholm, Spencer Logan, Jürg Schweizer
- Description: While doing avalanche mitigation work or traveling in the backcountry, occasionally a
sizable part of a slope fractures without triggering an avalanc...
- Object ID: issw-2006-029-037.pdf
- Keywords: snow stability, fracture, whumpf, avalanche release, avalanche forecasting
- View additional details about Uncertainties in Assessing the Stability of Fractured Slopes
- Title: Predicting Snow Cover Stability with the Snow Cover Model Snowpack
- Date: 2006
- Authors: Sascha Bellaire, Jürg Schweizer, Charles Fierz, Michael Lehning, Christine Pielmeier
- Description: The snow cover model SNOWPACK simulates snow stratigraphy for the locations of
automatic snow and weather stations. Based on the stratigraphy, snow s...
- Object ID: issw-2006-038-043.pdf
- Keywords: avalanche forecasting, snow cover modelling, snow stability evaluation, numerical simulation
- View additional details about Predicting Snow Cover Stability with the Snow Cover Model Snowpack
- Title: Spatial Clusters of Slab Stability and Snowpack Properties Within Avalanche Start Zones
- Date: 2006
- Authors: Cam Campbell, Bruce Jamieson
- Description: During the winters of 2000-01 and 2001-02, 36 spatial arrays of closely spaced smallcolumn-type stability tests were performed, each in a day. Each ar...
- Object ID: issw-2006-044-053.pdf
- Keywords: spatial variability, snow stability, avalanche start zones, clustering, snowpack stratigraphy, avalanche forecasting
- View additional details about Spatial Clusters of Slab Stability and Snowpack Properties Within Avalanche Start Zones
- Title: The Extended Column Test: A Field Test for Fracture Initiation and Propagation
- Date: 2006
- Authors: Ron Simenhois, Karl Birkeland
- Description: For dry slab avalanches, fractures initiate and propagate in a weak layer or along an
interface. Current field tests like compression or stuffblock t...
- Object ID: issw-2006-079-085.pdf
- Keywords: stability test, avalanche forecasting, stability assessment, fracture propagation
- View additional details about The Extended Column Test: A Field Test for Fracture Initiation and Propagation
- Title: Evaluating a Prototype Field Test for Weak Layer Fracture and Failure Propagation
- Date: 2006
- Authors: Dave Gauthier, Bruce Jamieson
- Description: Researchers and practitioners currently lack a quantitative field test that indicates the propensity of a given slab and weak layer combination to pro...
- Object ID: issw-2006-107-116.pdf
- Keywords: fracture propagation, field test, extended column, snowpack stability, avalanche forecasting
- View additional details about Evaluating a Prototype Field Test for Weak Layer Fracture and Failure Propagation
- Title: Improvements in the Application of the Snowmicropen to Derive Stability Information for Avalanche Forecasting
- Date: 2006
- Authors: Christine Pielmeier, Jürg Schweizer, Hans Peter Marshall
- Description: Local snowpack measurements and local stability tests are currently the basis for the assessment of snowpack stability in most avalanche warning opera...
- Object ID: issw-2006-187-192.pdf
- Keywords: snowpack stability, avalanche forecasting, snow profile, mechanical properties, snow hardness
- View additional details about Improvements in the Application of the Snowmicropen to Derive Stability Information for Avalanche Forecasting
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