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Your search for Subject Snow Instabilityresulted in 708 records.

Title: A Study of Blasting -Induced Snow Instabilities and Avalanche Releases
Date: 2006
Authors: Pavel Chernouss, Yuri Fedorenko, Nikolai Barashev, Evgeny Mokrov
Description: It is known that explosions can trigger avalanches but mechanisms of their influence remain unstudied and experimental data on explosion effects on th...
Object ID: issw-2006-598-606.pdf
Keywords: explosions, seismicity, air shock waves, avalanches, simulation
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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: The History of ISSW and the ISSW Steering Committee
Date: 2006
Authors: Richard Marriott
Description: The International Snow Science Workshop began as meetings held informally in the 50s and early 60's. Early meetings were held as special sessions or ...
Object ID: issw-2006-420-427.pdf
Keywords: issw, history, steering committee, future
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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: The Microstructual Effects of Kinetic Growth Metamorphism in a Layered Snow Structure
Date: 2006
Authors: Ethan M. Greene, Martin Schneebeli, Kelly Elder
Description: Faceted snow near a hard crust often poses a dangerous problem for avalanche forecasters. producing a persistent weakness where the avalanches are dif...
Object ID: issw-2006-022-026.pdf
Keywords: snow microstructure, kinetic growth metamorphism, facets near crusts
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Title: Associations Between Shear Strength of a Buried Surface Hoar Layer and Stratigraphic, Topographic and Vegetation Characteristics on a “Uniform” Slope
Date: 2006
Authors: Eric Lutz, Karl W. Birkeland, Martin Schneebeli, Kathy J. Hansen, Kalle Kronholm
Description: In this study we quantify 1) changes in spatial and aspatial characteristics of the shear strength of a buried surface hoar layer, and 2) identify ch...
Object ID: issw-2006-027-028.pdf
Keywords: shear strength, snow stratigraphy, snow microstructure, slope uniformity
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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: 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: Interfacial Crack Velocities in a Snow Slab – Numerical Simulation
Date: 2006
Authors: P. Mahajan, S.K. Joshi
Description: A snow pack consists of weak layers embedded in strong layers. The interface bond between a weak layer and layers in between which it is sandwiched m...
Object ID: issw-2006-092-100.pdf
Keywords: cohesive zone, dynamic crack growth, weak layer, snow, finite element
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Title: A Snow Microstructure Supplement to Sntherm Model
Date: 2006
Authors: R.K. Aggarwal, M.R. Ravi, P. Mahajan
Description: SNTHERM is a one dimensional heat and mass transfer model that predicts change in surface temperature, temperature of snow and soil layers, settlement...
Object ID: issw-2006-117-126.pdf
Keywords: thermal conductivity, viscosity, microstructure, bond, grain
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Title: Dissipation and Most Probable Flow States: The Role of Mechanical Work and Granular Fluctuations in Snow Avalanches
Date: 2006
Authors: Perry Bartelt, Martin Kern, Othmar Buser
Description: There are many simple questions in snow avalanche dynamics that remain unanswered: why do snow avalanches travel so far and appear to have so little f...
Object ID: issw-2006-127.pdf
Keywords: avalanche dynamics
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Title: Dynamic Modeling of Speed Profiles of Extreme Dry Snow Avalanches
Date: 2006
Authors: Christopher P. Borstad, David M. McClung
Description: We present an improved method for calculating the speed of extreme dry snow avalanches for land-use planning applications. This work is a response to...
Object ID: issw-2006-128.pdf
Keywords: dynamics, extreme events, land use planning, hazard mapping, avalanche speed
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Title: Snow Cornice Development and Failure Monitoring
Date: 2006
Authors: Robert A. Burrows, David M. McClung
Description: Snow cornices are significant winter alpine and snow avalanche hazards. A cornice is a leeward growing mass of snow overhanging from a ridge or sharp ...
Object ID: issw-2006-129.pdf
Keywords: cornice failure, monitoring, slab fractures, solar radiation
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Title: Study of Layered Snow Under Shear and Tension
Date: 2006
Authors: S.K.Joshi, P.Mahajan, Agraj Upadhyay
Description: Natural avalanche release involves the failure by both tension and shear. Clear illustration of this failure phenomenon individually or as a combinat...
Object ID: issw-2006-165-173.pdf
Keywords: tensile failure, shear failure, layered snow, interface, fine grained snow, melt- freeze snow
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