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

Title: Ash and Snow, Impact on the Avalanche Hazard of Ash Layers in the Snowpack
Date: 2013-10-07
Authors: Cedric Larcher, Diego Seba
Description: On the 4th of June 2011, the Cordon del Caulle Volcano situated in the Chilean Andes exploded sending a huge amount of ash and volcanic material into...
Object ID: ISSW13_paper_P5-05.pdf
Keywords: ash, volcano, avalanche, snow, snowpack, stability
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Title: Collecting Snow Measurements with Ushahidi: Arpa Piemonte Experience During Winter 2013
Date: 2013-10-07
Authors: R. Cremonini, A. R. Gaeta, E. Solero, R. Pispico, M. Faletto, M.C, Prola, S. Barbero
Description: Accurate and updated measurements are critical for snow stability conditions assessment and avalanche risk evaluation. Recently, Arpa Piemonte has cus...
Object ID: ISSW13_paper_P5-43.pdf
Keywords: snow measurements, smartphone app, geo-referred information
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Title: Using High-Speed Video to Better Understand Extended Column Tests
Date: 2012
Authors: Karl W. Birkeland, Alec van Herwijnen
Description: Extended Column Tests (ECTs) have become increasingly popular for assessing snowpack stability. However, we still do not fully understand what happen...
Object ID: issw-2012-098-103.pdf
Keywords: extended column test, propagation saw test, snowpack stability test,
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Title: The Propagation Saw Test (PST): A Review of its Development, Applications, and Recent Research
Date: 2012
Authors: Dave Gauthier, Bruce Jamieson
Description: The Propagation Saw Test (PST) method was developed independently in Switzerland and in Canada in 2005 and 2006. It was inspired partly by observation...
Object ID: issw-2012-1047-1053.pdf
Keywords: fracture propagation, snow stability tests, avalanche safety
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Title: Changes in Stability Test Usage by Snowpilot Users
Date: 2012
Authors: Karl W. Birkeland, Doug Chabot
Description: Professionals and recreationists utilize stability tests to assess snow stability. Our goal is to determine whether or not people are changing the typ...
Object ID: issw-2012-1065-1068.pdf
Keywords: snow pit, snow stability, avalanche fractures
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Title: Measurements at Recent Deep Slab Avalanches
Date: 2012
Authors: Michael J.W. Conlan, David Tracz, Bruce Jamieson
Description: Hard-to-forecast deep slab avalanches can release unpredictably under diverse conditions ranging from storms to clear days to locally induced stress t...
Object ID: issw-2012-055-061.pdf
Keywords: persistent weak layer, cohesive slab, avalanche forecasting, snow stability, snow strength
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Title: Slab Avalanche Crown Surface Fractography: Observations and Applications
Date: 2012
Authors: Dave Gauthier
Description: Fractography is the study of the morphological fracture surface features in artificial and natural materials, including bone and rock. Several pattern...
Object ID: issw-2012-115-120.pdf
Keywords: crack propagation, fracture-line, crowns
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Title: The Underestimated Role of the Stauchwall in Full-Depth Avalanche Release
Date: 2012
Authors: Perry Bartelt, Christine Pielmeier, Stefan Margreth, Stephan Harvey, Thomas Stucki
Description: During the winter 2011/12 the Swiss Alps experienced repeated cycles with high activity of snow gliding and full-depth avalanches. Up to 8 m deep glid...
Object ID: issw-2012-127-133.pdf
Keywords: snow gliding, full-depth avalanche, compacted zone,
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Title: Nowcast With a Forescast – Snow Cover Simulations on Slopes
Date: 2012
Authors: Sascha Bellaire, Bruce Jamieson
Description: The snow cover model SNOWPACK simulates the snow cover formation and evolution based on meteorological parameters. In the past, these parameters were...
Object ID: issw-2012-172-178.pdf
Keywords: snowpack, snow cover modeling, avalanche warning, numerical weather prediction models, snow cover stratigraphy, model output statistics
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Title: Using a Thermal Imager to Quantify Buried Thermal Structure in Natural Snow
Date: 2012
Authors: Cora Shea, Bruce Jamieson, Karl Birkeland
Description: Avalanche researchers and practitioners have long measured snowpack temperatures in snow pits with thermometers about 10 cm apart. This led to the ass...
Object ID: issw-2012-267-276.pdf
Keywords: temperature gradient, thermal imaging, snow crystals, snow stability tests
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Title: Close Encounters With Avalanches During Rain-On-Snow: Lessons Learned
Date: 2012
Authors: W. Carran, H. Conway, A. Carran, Milford Team
Description: Two close encounters with avalanches during rain-on-snow in the spring of 1996 were aha-moments for the Milford Road avalanche program; these definin...
Object ID: issw-2012-285-289.pdf
Keywords: instability assessment, snow stability evaluation, explosives, start zones
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Title: Properties of Weak Layers Composed of Precipitation Particles In and Near Avalanche Starting Zones in Japan
Date: 2012
Authors: Shinji Ikeda, Tomoyuki Noro
Description: To gain further insight into the properties of weak layers composed of precipitation particles(PP weak layer), we analyzed 18 measurement datasets. A...
Object ID: issw-2012-586-590.pdf
Keywords: weak layer, fracture lines, snow crystals, avalanche forecast
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Title: The Effect of External Interference on Avalanche Transceiver Functionality
Date: 2012
Authors: John Barkhausen
Description: For over 40 years, avalanche transceivers have been helping searchers locate and rescue victims buried in avalanches. They rely on internal electronic...
Object ID: issw-2012-348-352.pdf
Keywords: avalanche transceiver, interference, functionality
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Title: The New Challenge is No More to Improve Prediction, But to Better Manage the Unexpected
Date: 2012
Authors: Alain Duclos
Description: While researchers are devoting their efforts for decades to improve avalanche forecasting, it still appears that the victims are almost always surpris...
Object ID: issw-2012-473-478.pdf
Keywords: avalanche forecasting, avalanche risk reduction, hazard
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Title: Deformation Analysis of the Propagation Saw Test
Date: 2010
Authors: Chris Borstad, David McClung
Description: We present results of high speed photography films which show that the scale of slope normal deformation prior to unstable fracture in the propagatio...
Object ID: ISSW_O-009.pdf
Keywords: propagation saw test, kootenay pass, british columbia
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