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Your search for Subject stability (propagation tests)resulted in 184 records.

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
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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
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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
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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
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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
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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
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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
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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
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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
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Title: Slab Avalanche Triggering: A Combination of Four Basic Phenomena in Series
Date: 2006
Authors: Alain Duclos, François Louchet
Description: There is still a significant gap between models describing slab avalanche triggering mechanisms and practical field applications in terms of risk pre...
Object ID: issw-2006-101-106.pdf
Keywords: avalanche triggering, crack propagation, avalanche program
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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
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Title: Snow Slope Stability Evaluation Using Concepts of Fracture Mechanics
Date: 2006
Authors: Jürg Schweizer, Ian McCammon, J. Bruce Jamieson
Description: Dry snow slab avalanche release is generally believed to proceed in three stages: 1) initiation of a local failure, 2) widespread propagation of that...
Object ID: issw-2006-211-218.pdf
Keywords: snow stability evaluation, avalanche formation, avalanche release, skier triggering, stability test, fracture
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Title: Spatial Variability of Some Snow Characteristics on a Slope and Interpretation of Measurements for Snow Stability Assessment
Date: 2006
Authors: Pavel Chernous, Yuri Fedorenko, Nikolay Barashev
Description: Snow thickness, density, shear strength and temperature are analyzed. Spatial distributions of the snow characteristics are considered as random field...
Object ID: issw-2006-339-348.pdf
Keywords: snow characteristics spatial variability, accuracy estimations, measurements' interpretation, simulation
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Title: Assessment of Spatial Correlation Structure of Penetration Resistance of Snow Layers Using Random Field Theory and its Implication for Snow Stability
Date: 2006
Authors: P.K. Srivastava, A. Chaudhary, P.K. Satyawali
Description: Avalanche researchers have long recognized that stability information from specific snow pits may or may not represent the stability conditions on th...
Object ID: issw-2006-349-358.pdf
Keywords: spatial correlation structure, snowmicropen, cellular automata
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Title: Spatial Variability – So What?
Date: 2006
Authors: Jürg Schweizer, Kalle Kronholm, J. Bruce Jamieson, Karl W. Birkeland
Description: Since the landmark papers of Conway and Abrahamson many studies have tried to quantify spatial variability. Many different methods have been used and ...
Object ID: issw-2006-365-376.pdf
Keywords: snow mechanical properties, snow slope stability evaluation, avalanche formation, avalanche forecasting, spatial variability, numerical modeling
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