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Your search for Subject Snow Instabilityresulted in 708 records.

Title: A Comparison of the Spatial Structure of the Penetration Resistance of Snow Layers in Two Different Snow Climates
Date: 2004
Authors: Karl Birkeland, Kalle Kronholm, Spencer Logan
Description: This paper compares the spatial structure of the compressive strength of slab and weak layers from two different snow climates. Our data come from ar...
Object ID: ISSW-2004-003.pdf
Keywords: avalanches, avalanche forecasting, spatial variability, snow layers, stratigraphy
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Title: Relating Spatial Variability to Snow Stability Using a Cellular Automation Model Initialized with Field Data
Date: 2004
Authors: Kalle Kronholm , Karl W. Birkeland
Description: This research uses a two-dimensional cellular automaton model, with inputs taken from field data, to mimic snow slab avalanche release. The initial we...
Object ID: ISSW-2004-007.pdf
Keywords: stochastic, avalanche release, shear strength, shear stress, fracture propagation
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Title: Temporal Changes in the Spatial Variability of Shear Strength and Stability
Date: 2004
Authors: Spencer Logan, Karl Birkeland, Kalle Kronholm, Kathy Hansen
Description: Avalanche forecasting involves the prediction of spatial and temporal variability of the snowpack. To predict avalanches with more accuracy it is impo...
Object ID: ISSW-2004-009.pdf
Keywords: spatial variability, avalanches, avalanche forecasting, temporal change
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Title: Dynamic Modelling of Dense Snow Avalanche Runout
Date: 2004
Authors: Chris Borstad
Description: Human experience with snow avalanches has motivated pursuits to determine the physics underlying the motion of flowing snow. Of particular practical ...
Object ID: issw-2004-001.pdf
Keywords: hazard, mapping, runout, flow, starting zone
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Title: Ventilation and Radon Dynamics in Maine Seasonal Snowcover
Date: 2004
Authors: Daniel J. Breton
Description: Radon concentrations and fluxes were measured for seasonal snowpack on Baldpate Mtn. in Newry, Maine during the winter of 2004. A solar radiation and ...
Object ID: issw-2004-002-011.pdf
Keywords: ventilation, radon, wind-driven circulation, natural circulation
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Title: Field Measurement of Snow Creep in a Radiation Snow Climate, San Juan Mountains, Colorado
Date: 2004
Authors: Nicholas G. Caselli
Description: Real-time creep data may one day be incorporated into avalanche forecasting practices. Although numerous methods of creep data collection have contri...
Object ID: issw-2004-012-021.pdf
Keywords: snow creep, avalanches, creep measurement, radiation snow climate, melt-freeze crusts
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Title: As the Snow Goes, A Multivariable Study of Factors that Affect Loss of Snow
Date: 2004
Authors: Erica David
Description: What are effects of environmental factors on sublimation of snow pack? There is a need to retain winter’s snow pack to improve water supply dur...
Object ID: issw-2004-022-031.pdf
Keywords: intercepted snow, branch resistance, sublimation, snow pack, water supply
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Title: Particle Image Velocimetry; A New Technique to Measure Strain in Loaded Snow
Date: 2004
Authors: J. Andrew Gleason
Description: A new technique has been developed to accurately measure strain in snow subjected to a band load. While stress beneath loaded snow has been measured,...
Object ID: issw-2004-044-049.pdf
Keywords: snow strain, particle image velocimetry, snow load
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Title: Measurements of Snow Strain Combined with Finite Element Simulations
Date: 2004
Authors: J.A. Gleason, H.P. Marshall
Description: The rheological properties of snow are not well understood, however accurate constitutive relationships are necessary for various fields including ve...
Object ID: issw-2004-050.pdf
Keywords: strain, simulation, band load, vehicular movement
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Title: Alpine and Maritime Snow Covers: Similarities and Differences in Water Distribution
Date: 2004
Authors: A. H. Jarosch, A. Denoth
Description: The nature of a snow cover differs greatly from area to area and it is highly interesting to compare the various consistencies of snow covers in diver...
Object ID: issw-2004-051-055.pdf
Keywords: snow physics, water content, maritime and alpine climates
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Title: Experiments in Layered Snow Samples Under Shear and Tension
Date: 2004
Authors: S.K. Joshi, S. Senthil, P. Mahajan
Description: Avalanche release phenomenon by nature involves the failures by both tension and shear. Clear illustration of these failure phenomena individually or...
Object ID: issw-2004-056.pdf
Keywords: release, fracture, homogenous, tensile, shear
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Title: Measurements of Snow Straigraphy with FMCW Radar: Comparison with Other Snow Science Instruments
Date: 2004
Authors: H.P. Marshall, M. Schneebeli, G. Koh, M. Matzl, C. Pielmeier
Description: The stratigraphy of an alpine snowpack is very important for avalanche danger assessment, as well as interpretation of remote sensing measurements for...
Object ID: issw-2004-057-063.pdf
Keywords: snowpack, stratigraphy, snowmicropen, danger
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Title: Investigations of Wet Snow Stability in the Intermountain Climate Zone
Date: 2004
Authors: Simon A. Trautman, Stephan G. Custer, Karl W. Birkeland
Description: Bridger Bowl Ski Area outside of Bozeman, MT, USA, has encountered annual problems forecasting large, wet loose avalanches that occur during warming e...
Object ID: issw-2004-074.pdf
Keywords: wet avalanche, shear strength, stability, avalanche activity
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Title: Verification of Snow-Cover Modeling on Slopes
Date: 2004
Authors: Charles Fierz, Michael Lehning
Description: A correct representation of snow-cover evolution on slopes is crucial to enable the use of snow-cover models as a valuable tool for avalanche forecast...
Object ID: issw-2004-094-098.pdf
Keywords: snow-cover modeling, snow stratigraphy, snow stability
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Title: Evolution of the Early Season Snow Cover in the Colorado Rockies
Date: 2004
Authors: Hal Hartman
Description: Thirty years of empirical evidence gathered in the Colorado Rockies suggest the frequent development of three distinct layers embedded within the basa...
Object ID: issw-2004-099-106.pdf
Keywords: predictable, normalized, composite ram profile, kinetic metamorphism
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