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

Title: An Energy-Based Microstructural Constitutive Model for Fracture in Snow
Date: 2014-09-29
Authors: Anthony M. LeBaron, Daniel A. Miller
Description: Understanding fracture initiation and propagation in snow is paramount to avalanche science. There is ongoing discussion and debate regarding the mode...
Object ID: ISSW14_paper_O6.01.pdf
Keywords: fracture, energy release rate
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Title: On How the Tensile Strength of the Slab Affects Crack Propagation Propensity
Date: 2014-09-29
Authors: Jürg Schweizer, Benjamin Reuter, Alec van Herwijnen, Dave Gauthier, Bruce Jamieson
Description: The release of a dry-snow slab avalanche is preceded by a series of fractures. The two key processes involved are (1) failure initiation within the we...
Object ID: ISSW14_paper_O7.02.pdf
Keywords: avalanche release, snow stability evaluation, avalanche forecasting, fracture
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Title: Slab Avalanche Release Area Estimation: A new GIS Tool
Date: 2014-09-29
Authors: Jochen Veitinger, Betty Sovilla, Ross S. Purves
Description: Location and extent of avalanche starting zones are of crucial importance to correctly estimate the potential danger that avalanches pose to roads, ra...
Object ID: ISSW14_paper_O10.04.pdf
Keywords: release area, slab avalanche, hazard mapping, risk management, fuzzy logic
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Title: Field Measurements and Modeling of Wave Induced Weak Layer Failure Due to an Explosion
Date: 2014-09-29
Authors: Stephan Simioni, Rolf Sidler, Jürg Schweizer, Jürg Dual
Description: Little is known about the mechanisms involved when triggering avalanches artificially by explosions. Here we test the hypothesis that weak layer failu...
Object ID: ISSW14_paper_P2.22.pdf
Keywords: avalanche release, avalanche control, wave propagation in snow, numerical modeling
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Title: Controlled Avalanche Release for Protection of Traffic Infrastructure: Towards a New Perspective
Date: 2014-09-29
Authors: Arnold Kogelnig, Samuel Wyssen
Description: Permanent measures, like supporting structures, damns and tunnels have been the classical technical measure for mitigation of avalanche danger in the ...
Object ID: ISSW14_paper_P3.54.pdf
Keywords: avalanche release, road protection, avalanche towers
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Title: Artificial Avalanche Release and the Probability of Triggering Secondary Avalanches
Date: 2013-10-07
Authors: Lukas Stoffel, Stefan Margreth, Jurg Schweizer
Description: Today, avalanches are often artificially triggered to protect ski areas and to some extent, transportation routes and residential areas. During avalan...
Object ID: ISSW13_paper_O1-14.pdf
Keywords: artificial release of avalanches, secondary avalanches, application of artificial avalanche release, safety concept
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Title: On How to Measure Snow Mechanical Properties Relevant to Slab Avalanche Release
Date: 2013-10-07
Authors: Benjamin Reuter, Martin Proksch, Henning Loewe, Alec van Herwijnen, Jürg Schweizer
Description: The release of a slab avalanche is preceded by a sequence of fractures. The main material properties relevant for the fracture processes are the spec...
Object ID: ISSW13_paper_O2-02.pdf
Keywords: snow microstructure, snow mechanical properties, snow fracture, snow stability evaluation, avalanche release
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Title: Weak-Layer Spatial Variability as a Possible Trigger of Slab Tensile Failure
Date: 2013-10-07
Authors: Johan Gaume, Guillaume Chambon, Nicolas Eckert, Mohamed Naaim
Description: The evaluation of the location of slab tensile failure represents an important concern for the evaluation of the extent of avalanche release zones and...
Object ID: ISSW13_paper_O2-03.pdf
Keywords: snow avalanche, avalanche release, slab, weak layer, spatial variability, tensile failure
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Title: Measuring Acoustic Emissions in an Avalanche Starting Zone to Monitor Snow Stability
Date: 2013-10-07
Authors: Ingrid Reiweger, Jürg Schweizer
Description: Evaluating snowpack stability still involves time-consuming and labour-intensive manual tests; in dangerous or remote areas performing such tests migh...
Object ID: ISSW13_paper_O2-14.pdf
Keywords: snow avalanche, avalanche release, snow stability evaluation, acoustic emission, precursor
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Title: Artificial Avalanche Release as a Protection Measure for Major Roads: The Case Study of Road S.S. 21 “Colle della Maddalena” (CN, Western Italian Alps)
Date: 2013-10-07
Authors: Marco Vagliasindi, Alex Theodule, Margherita Maggioni, Elena Levera
Description: The application of artificial release plans to roads safety management is a very promising prospect. Compared to structural measures, this method usua...
Object ID: ISSW13_paper_P1-61.pdf
Keywords: pidav, avalanche interaction with roads, artificial release
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Title: Improvement and Tracking of Helicopter Avalanche Triggering
Date: 2013-10-07
Authors: Jean Marc Neuville, Julien Aboulin, David Poulet, Bruno Farizy, Vincent Hélary, Roland Didier, Xavier Gallot-Lavallée
Description: This new concept called DaisyTrack is a registration unit complementary to the helicopter triggering system DaisyBell. It enables the person in charge...
Object ID: ISSW13_paper_P1-64.pdf
Keywords: preventive avalanche release, gas, traceability, geolocalisation
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Title: The Role of Slope Angle, Ground Roughness and Stauchwall Strength in the Formation of Glide-Snow Avalanches in Forest Gaps
Date: 2013-10-07
Authors: T. Feistl, P. Bebi, P. Bartelt
Description: Mountain forests are a cost-efficient measure to prevent the release of glide-snow avalanches. However, avalanches still release in forest gaps. Well-...
Object ID: ISSW13_paper_P2-57.pdf
Keywords: forest avalanches, glide-snow avalanche, release, snow cover
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Title: Preliminary Measurements and Survey of Snowdrift at the Seehore Avalanche Test Site – Aosta Valley (IT)
Date: 2013-10-07
Authors: Maggioni M., Durand N., Frigo B., Pallara O., Freppaz M., Dellavedova P., Segor V., Naaim- Bouvet F., Bellot H.
Description: In high elevation areas drifting snow influences the snowpack spatial distribution and consequently its stability. The amount of snow drifted from th...
Object ID: ISSW13_paper_P2-65.pdf
Keywords: snowdrift, avalanche release zone, experimental data, nw italian alps
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Title: The Effect of Spatial Variations of Snowpack Properties on Snow Slope Stability: A Mechanically-Based Statistical Approach
Date: 2013-10-07
Authors: Johan Gaume, Jürg Schweizer, Alec van Herwijnen, Guillaume Chambon, Nicolas Eckert, Mohamed Naaim
Description: The spatial variability of snowpack properties has an important impact on snow slope stability and thus on avalanche formation. Hence, the determinat...
Object ID: ISSW13_paper_P4-07.pdf
Keywords: snow avalanche, avalanche release, slab, weak layer, spatial variability, slope stability
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Title: Infrasound Detection of Avalanches, A New Approach on Managing Avalanche Risks
Date: 2013-10-07
Authors: Arnold Kogelnig, Giacomo Ulivieri, Emanule Marchetti, Samuel Wyssen
Description: The Austrian state road Silvretta Straße B188 is located in the avalanche-exposed Paznaun Valley. During the winter this road is an important tran...
Object ID: ISSW13_paper_P4-58.pdf
Keywords: infrasound, radar, detection, artificial avalanche release
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