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Your search for Subject Snow Instabilityresulted in 708 records.

Title: Erfahrungen mit der Gratlawine be i Blatten, Kt. Wallis, Schweiz
Date: 2009
Authors: Peter Schwitter, Lukas Stoffel
Description: Am 22. Februar 1999 ging die Gratlawine bei Blatten in sehr grossem Ausmass nieder. 15 Gebäude wurden total zerstört, 24 Gebäude beschädi...
Object ID: issw-2009-0035-0038.pdf
Keywords: lawinen, fallbeispiel, baulicher lawinenschutz, temporäre lawinenschutzmassnahmen, künstliche lawinenauslösung
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Title: Avalanches and Snow Mobile Traffic Around Longyearbyen, Svalbard
Date: 2009
Authors: Markus Eckerstorfer, Hanne H. Christiansen, Ullrich Neumann
Description: Longyearbyen is situated in a mountainous landscape, thus infrastructure, living and travelling in and around Longyearbyen is highly affected by moun...
Object ID: issw-2009-0044-0047.pdf
Keywords: high arctic, svalbard, snow avalanches, radar traffic counting
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Title: Visualization of Three-Dimensional Snow: How to Use it in Snow Education
Date: 2009
Authors: Martin Heggli, Matthias Jaggi, Bernd Pinzer, Stephen Steiner, Thiemo Theile, Martin Schneebeli
Description: Traditionally, the shape of snow crystals is studied on a crystal screen. Therefore, snow is implicitly considered as a material composed of individua...
Object ID: issw-2009-0062-0066.pdf
Keywords: microstructure, micro-ct, serial sections, surface rendering, anaglyph, replica method
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Title: Snow Characterization by Optical Properties
Date: 2009
Authors: Mathias Gergely, Martin Schneebeli, Kurt Roth
Description: Snow optics offers an opportunity to measure physical properties of a vertical snow profile or a snow surface by unbiased, high-resolution and time-s...
Object ID: issw-2009-0087-0091.pdf
Keywords: optical properties, reflectance, transmittance, grain size, density
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Title: Force-Controlled Shear Experiments With Snow Samples
Date: 2009
Authors: Ingrid Reiweger, Robert Ernst, Jürg Schweizer, Jürg Dual
Description: Natural dry-snow slab avalanches start with a failure within a weak snow layer. In order to understand the mechanical behaviour and the failure mechan...
Object ID: issw-2009-0120-0123.pdf
Keywords: snow mechanical properties, shear strength, acoustic emission, dry-snow slab avalanche, piv
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Title: Snow Profiling at Weissfluhjoch
Date: 2009
Authors: Roland Meister
Description: Systematic snow and avalanche research in Switzerland started shortly after 1932, when the Swiss snow and avalanche commission was founded and the cab...
Object ID: issw-2009-0124-0128.pdf
Keywords: weissfluhjoch research station, snow metamorphism, swiss ramsonde, avalanche formation, pattern recognition, avalanche warning
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Title: SPA - Snow Pack Analysing System
Date: 2009
Authors: Reinhard Fiel, Wolfram Sommer, Thomas Rentsch
Description: The Snow Pack Analysing System is an automatic in-situ measurement system to determine the characteristics of snow covers. Measurements of the complex...
Object ID: issw-2009-0129-0131.pdf
Keywords: snow density, snow water equivalent, liquid water content, in-situ measurement
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Title: Systematic Assessment of New Snow Settlement in Snowpack
Date: 2009
Authors: W. Steinkogler, C. Fierz, M. Lehning, F. Obleitner
Description: New snow settlement in the very first hours and days after a snowfall has not yet been fully understood. Modelling errors at this initial stage propag...
Object ID: issw-2009-0132-0135.pdf
Keywords: new snow, settlement, snowpack, snow harps
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Title: Aerodynamic and Surface Characteristic Length Scales of Snow Covered Flat Planes
Date: 2009
Authors: Christof Gromke, Michele Guala, Costantino Manes, Benjamin Walter, Michael Lehning
Description: Velocity profiles over fresh fallen snow surfaces have been measured in the SLF cold atmospheric boundary layer wind tunnel. Aerodynamic roughness le...
Object ID: issw-2009-0136-0140.pdf
Keywords: aerodynamic roughness length, digital image analysis, snow surface roughness, structure functions, surface characteristic length scales, turbulent boundary layer flow
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Title: Understanding Snow Transport Processes Shaping the Mountain Snow-Cover
Date: 2009
Authors: Rebecca Mott, Michael Schirmer, Thomas Grünewald, Michael Lehning
Description: In alpine terrain the snow cover is heterogeneously distributed as a result of wind and precipitation interacting with the snow cover at various scale...
Object ID: issw-2009-0141-0145.pdf
Keywords: spatial variability, small scale wind fields, snow transport processes
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Title: Online NWP-Model Data as Boundary Conditions for Snow Drift Simulation
Date: 2009
Authors: Simon Schneiderbauer, Stefan Pirker
Description: The open boundary conditions for the computational fluid dynamics simulation of the micro- and meso-scale flow over the Grimming mountain, Austria, ar...
Object ID: issw-2009-0146-0150.pdf
Keywords: open boundary conditions, optimization, boussinesq approximation, cfd
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Title: Measurements of Small Scale Spatial and Temporal Variability of Snow Depth and SWE in a Small Mountain Catchment
Date: 2009
Authors: T. Grünewald, M. Schirmer, M. Lehning
Description: Using a new type of terrestrial laser scanner (TLS), which is particularly suited for measurements of snow covered surfaces, we monitored snow depth, ...
Object ID: issw-2009-0151-0154.pdf
Keywords: spatial variability, snow water equivalent, snow depth, terrestrial laser scanner, melt rates
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Title: Analysis of Temporal and Spatial Snow Depth Changes in a Steep Rock Face
Date: 2009
Authors: Vanessa Wirz, Michael Schirmer, Michael Lehning
Description: To understand snow distribution in steep rock walls a high resolution terrestrial laser scanner (TLS) was used to achieve precise snow height digital...
Object ID: issw-2009-0155-0159.pdf
Keywords: terrestrial laser scanning, snow depth changes, rock face, snow distribution
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Title: The Influence of Aspect on Physical and Chemical Properties of the Snow Cover in a Basin on the Monte Rosa Massif (North-Western Italian Alps)
Date: 2009
Authors: A. Brulport, M. Maggioni, M. Freppaz, G. Filippa, E. Squinobal
Description: In Alpine ecosystems, snowpacks are characterized by both spatial and temporal variability, as a function of topographical and meteorological factors....
Object ID: issw-2009-0160-0164.pdf
Keywords: snowpack variability, topography, snow chemistry, stability
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Title: Satellite Observed SCA and Gamma Distributed Snow in the HBV Model
Date: 2009
Authors: Thomas Skaugen, Frode Randen
Description: Areas having a seasonal snowpack experience a risk of melt-floods. The magnitude of such a flood is highly dependent on the available water stored in ...
Object ID: issw-2009-0184-0186.pdf
Keywords: snow modelling, satellite observed sca, swe, snow distribution
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