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Your search for Subject Snow Instabilityresulted in 708 records.

Title: Validation of the Snowpack Model in the Dolomites
Date: 2009
Authors: Fabiano Monti, Anselmo Cagnati, Charles Fierz, Michael Lehning, Mauro Valt, Andrea Pozzi
Description: Starting from the 2004 winter season, the SNOWPACK snow cover model has been operational at the Avalanche Forecasting Centre in Arabbe (Dolomites, Ita...
Object ID: issw-2009-0313-0317.pdf
Keywords: snowpack model, snow metamorphism, model validation, wind effects
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Title: Wireless Sensors as a Tool to Explore Avalanche Internal Dynamics: Experiments at the Weissfluhjoch Snow Chute
Date: 2009
Authors: I. Vilajosana, J. Llosa, M. Schaefer, E. Suriñach, J.M. Marquès, X. Vilajosana
Description: Specially designed wireless accelerometers units were used in a series of experiments at the snow chute operated by the SLF at Weissflühjoch (Switz...
Object ID: issw-2009-0400-0404.pdf
Keywords: snow avalanches, wireless sensor networks, accelerometers, snow chute, avalanche dynamics
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Title: Detecting Snow Avalanches With Seismic Stations in North-East Italy: First Results of Dataset Analysis
Date: 2009
Authors: Mauro Valt, Damiano Pesaresi
Description: The Regional Agency for the Environmental Prevention and Protection of Veneto (Agenzia Regionale per la Prevenzione e Protezione Ambientale del Veneto...
Object ID: issw-2009-0458-0462.pdf
Keywords: snow cover, avalanche, artificial avalanche, seismic station, spectra
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Title: Identification of Areas Potentially Affected by Extreme Snow Avalanche Combining Expert Rules, Flow-Routing Algorithms and Statistical Analysis
Date: 2009
Authors: Matteo Pagliardi, Massimiliano Barbolini, Paolo Corradeghini, Francesco Ferro
Description: An innovative methodology to perform avalanche hazard mapping that combines open source GIS tools, expert rules, computational routines, and statisti...
Object ID: issw-2009-0468-0471.pdf
Keywords: snow avalanche, hazard mapping, grass geographic information systems (gis), flow-routing algorithm, run-out angle
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Title: Scaled Laboratory Experiments on the Evolution of Fluidised Avalanches
Date: 2009
Authors: J. Koegl, A. Graf, L. Rammer, K. Kleemayr, M.A. Kern, P. Gauer, G. Kapeller, M. Aufleger
Description: Scaled chute experiments with avalanche-like flows of dry granular matter have proven to be a useful tool for the design of technical avalanche prote...
Object ID: issw-2009-0477-0481.pdf
Keywords: scaled avalanche experiments, snow net, breaking obstacle
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Title: Definition of Hazard Zones for Dense Snow Avalanches
Date: 2009
Authors: Paolo Scotton, Francesca Moro, Stefano De Toni, Daniele Dalla Valle, Irene Vigni
Description: The paper describes a procedure for the determination of snow avalanches Hazard Map developed after the observation, over some years, of the behaviour...
Object ID: issw-2009-0488-0491.pdf
Keywords: dense snow avalanche, granular rheology, hazard zoning
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Title: High-Speed Video Recording in Snow Chute Experiments
Date: 2009
Authors: Marius Schaefer, Martin Kern
Description: New technologies like high-speed video recording give new insights into the flowing behavior of snow. At the SLF snow chute at Weissfluhjoch Davos a s...
Object ID: issw-2009-0492-0494.pdf
Keywords: avalanche dynamics, high-speed video recording, snow rheology, chute experiments, pattern matching algorithm
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Title: Regional Methods for Snow Avalanche Prediction: The Case of Italian Alps
Date: 2009
Authors: Daniele Bocchiola
Description: Regional statistical methods carry considerable bearing on prediction of natural events with low frequency of occurrence, including snow avalanches. ...
Object ID: issw-2009-0505-0508.pdf
Keywords: avalanche hazard, regional methods, long term simulation, italian alps
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Title: 2D Modelling of Icelandic Snow Avalanches for Hazard Zoning
Date: 2009
Authors: Eiríkur Gíslason
Description: The methodology for snow avalanche hazard zoning in Iceland is based on a statistical run-out analysis of a data-set of historical avalanches. The met...
Object ID: issw-2009-0529-0532.pdf
Keywords: avalanche modelling, two-dimensional run-out index, hazard zoning
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Title: Actions of Snow Avalanches on a Snow Shed
Date: 2009
Authors: Y. Ma, E. Thibert, P. Perrotin, M. Mommessin
Description: The actions of snow avalanches on slightly inclined protection structures like snow sheds are a complex dynamic phenomenon. The impact stresses (norma...
Object ID: issw-2009-0543-0547.pdf
Keywords: experiments, snow avalanche, granular flow, impact stresses
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Title: Combining Wind Field Modelling with Spatial Snow Depth Measurements for Avalanche Forecast Purpose
Date: 2008-09-22
Authors: Alexander Prokop
Description: The snow cover distribution in alpine terrain is known to be highly influenced by the local wind field. In this study the correlation between differen...
Object ID: P__8135.pdf
Keywords: terrestrial laser scanning, snow depth, wind field modeling, snow cover
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Title: Statistical Assessment of Regional Avalanche Danger Using Parameters from the Snow Cover Model Snowpack
Date: 2008-09-22
Authors: Michael Schirmer, Michael Lehning, Jürg Schweizer
Description: Numerical avalanche prediction with statistical methods using meteorological input parameters has shown insufficient results, mainly since snow cover ...
Object ID: P__8182.pdf
Keywords: avalanche forecasting, numerical simulation, snow cover model, snow cover stability, nearest neighbor, feature selection, genetic algorithm
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Title: AK Block Project Status Update 2008
Date: 2008-09-26
Authors: Bill Glude, Randall S. Mullen
Description: The AK Block is a large block snow test sized to the tester's weight and their ski or snowboard contact length, dug out on three sides, and loaded muc...
Object ID: P__8059.pdf
Keywords: avalanche, snow stability tests, block tests, sized-block, ak block, rutschblock
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Title: Enso and Avalanche Fatalities: Is there a Correlation?
Date: 2008-09-22
Authors: Mark Moore
Description: Preliminary statistical evidence suggests that some correlation may exist between ENSO (El Niño Southern Oscillation) events and annual North Ameri...
Object ID: P__8068.pdf
Keywords: weather, snowpack evolution, avalanche fatality, snowpack structure, character of the winter
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Title: Deep Slab Avalanche Hazard Forecasting and Mitigation: The South Face at Big Sky Ski Area
Date: 2006
Authors: Scott Savage
Description: In December 1995, the Big Sky Ski Area installed a tram to the summit of Lone Mountain, accessing over 130 hectares (320 acres) of avalanche terrain i...
Object ID: issw-2006-483-490.pdf
Keywords: deep slab instability, crusts, ice, facets, explosives, avalanche forecasting
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