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Your search for Keyword "release"resulted in 124 records.

Title: Avalanche Triggering by Sound: Myth and Truth
Date: 2009
Authors: Benjamin Reuter, Jürg Schweizer
Description: It remains a popular myth that avalanches can be triggered by noise. We will take a closer look and compare the impact of sound, the supersonic boom ...
Object ID: issw-2009-0330-0333.pdf
Keywords: snow avalanche, avalanche release, explosive control
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Title: Using High Resolution LiDAR Data to Estimate Potential Avalanche Release Areas on the Example of Polish Mountain Regions
Date: 2009
Authors: Pawel Chrustek, Piotr Wezyk
Description: Mountains in Poland (with height over 500 m a.s.l.) cover only 3,1% of the total country area so avalanches are a less serious problem than in e.g. al...
Object ID: issw-2009-0495-0499.pdf
Keywords: snow avalanche, potential release areas, geographic information systems (gis), lidar, als data, avalanche mapping
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Title: Avalanche Protection for Construction Site
Date: 2009
Authors: Thomas Rentsch, Ruedi Stüssi
Description: “Linthal 2015” is as more than 1.5 billion project in the eastern Alps of Switzerland to expand an existing hydro power plant. Several con...
Object ID: issw-2009-0592-0596.pdf
Keywords: avalanche, prevention, artificial release, working site, avalanche blasting
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Title: Field Study on Fracture Propagation in Weak Snowpack Layers
Date: 2008-09-22
Authors: Alec van Herwijnen, Joachim Heierli, Jürg Schweizer
Description: Instabilities in snow slopes generally involve the progressive fracture along a weak snowpack layer. Recent field observations on fractures in weak la...
Object ID: P__8213.pdf
Keywords: snow avalanche, avalanche release, fracture mechanics, fracture propagation
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Title: Development of an Helicopter-Borne Gas Device for Avalanche Preventive Release
Date: 2008-09-25
Authors: Dr. Philippe Berthet-Rambaud, Louis Noel, Bruno Farizy, Jean-Marc Neuville, Stéphane Constant, Pascal Roux
Description: This new device called DaisyBell® combines the helicopter mobility with the advantages of a gaz system. It is an interesting alternative to the hel...
Object ID: P__8099.pdf
Keywords: preventive avalanche release, helicopter, gas device
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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: 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: 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: Potential Release Areas and Return Period of Avalanches: Is There a Relation?
Date: 2006
Authors: Margherita Maggioni, Urs Gruber, Ross S. Purves, Michele Freppaz
Description: Avalanche hazard zones are usually defined in terms of impact pressures and run-out distances for avalanches with a specific return period (T). Calcu...
Object ID: issw-2006-566-571.pdf
Keywords: avalanche hazard maps, release area, return period, extreme-values statistics
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Title: Forecasting Snow Avalanche Days from Meteorological Data Using Classification Trees; Grasdalen, Western Norway
Date: 2006
Authors: Kalle Kronholm, Dagrun Vikhamar-Schuler, Christian Jaedicke, Ketil Isaksen, Asgeir Sorteberg, Krister Kristensen
Description: Avalanches pose one of the most serious problems to infrastructure and people in the mountains in Norway. Processes leading to avalanche release are d...
Object ID: issw-2006-786-795.pdf
Keywords: avalanche release, climate, precipitation, wind, temperature
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Title: Water Outflow from Snow During Rain and Melt Events; Milford Highway, New Zealand
Date: 2006
Authors: W. Carran, H. Conway
Description: Avalanches often release within a few minutes after the onset of rain on new snow. The avalanche potential remains high until drainage through the sno...
Object ID: issw-2006-796.pdf
Keywords: stratigraphy, rain, melt, avalanche release, forecasting
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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: 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: Relating Spatial Variability to Snow Stability Using a Cellular Automaton 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-2004-308-314.pdf
Keywords: stochastic, avalanche release, shear strength, shear stress, fracture propagation
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Title: GIS Data Model
Date: 2004
Authors: Douglas Scott
Description: The intent of this poster presentation is to demonstrate the various GIS data layers used in the documentation and analysis of snow profiles and aval...
Object ID: issw-2004-532-533.pdf
Keywords: release, geographic information systems (gis), avalanche paths, vegetation
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