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- Title: Calculation of Dense Snow Avalanches in Three-Dimensional Terrain with the Numerical Simulation Program Ramms
- Date: 2008-09-22
- Authors: Marc Christen, Perry Bartelt, Julia Kowalski, Lukus Stoffel
- Description: Numerical models have become an essential part of snow avalanche engineering. Recent advances in understanding the rheology of flowing snow and the me...
- Object ID: P__8140.pdf
- Keywords: snow, avalanche, dynamics, modeling, numerical simulation, hazard mapping
- View additional details about Calculation of Dense Snow Avalanches in Three-Dimensional Terrain with the Numerical Simulation Program Ramms
- Title: Probabilistic Calibration of Avalanche Block Models
- Date: 2008-09-22
- Authors: Peter Gauer, Zenon Medina-Cetina, Karstein Lied, Krister Kristensen
- Description: The Norwegian Geotechnical Institute (NGI) has been operating the full-scale avalanche test-site Ryggfonn in western Norway for more than 25 years. Du...
- Object ID: P__8044.pdf
- Keywords: probabilistic avalanche modeling, bayesian modeling, calibration, prior knowledge, stochastic framework
- View additional details about Probabilistic Calibration of Avalanche Block Models
- Title: Application and Limitations of Dynamic Models for Snow Avalanche Hazard Mapping
- Date: 2008-09-22
- Authors: Bruce Jamieson, Stefan Margreth, Alan Jones
- Description: Dynamic models, initially based on fluid flow, have been used since the 1950s for modelling the motion and runout of extreme snow avalanches. The fric...
- Object ID: P__8052.pdf
- Keywords: snow avalanche, hazard mapping, runout, dynamic model, uncertainty, friction coefficients
- View additional details about Application and Limitations of Dynamic Models for Snow Avalanche Hazard Mapping
- Title: The Role of Kinetic Friction in Avalanche Fracture Propagation
- Date: 2008-09-22
- Authors: Ian Mccammon
- Description: Classical investigations into avalanche release have systematically characterized snow properties such as density, strength, stiffness, and hardness. ...
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- Keywords: avalanche, friction
- View additional details about The Role of Kinetic Friction in Avalanche Fracture Propagation
- Title: Snow Avalanche Pressure on Obstacles
- Date: 2008-09-22
- Authors: M. Naaim, T. Faug, E. Thibert, N. Eckert, G. Chambon, F. Naaim, H. Bellot
- Description: Impact forces by snow avalanches on obstacles need to be taken into account to design hazard maps of avalanche prone areas. An important question is h...
- Object ID: P__8141.pdf
- Keywords: snow, avalanche, pressure, mapping
- View additional details about Snow Avalanche Pressure on Obstacles
- Title: Avalanche Frequency and Magnitude: Using Power-Law Exponents to Investigate Snow Avalanche Size Proportions through Time and Space
- Date: 2008-09-22
- Authors: Adam Naisbitt, Richard Forster, Karl W. Birkeland, William L. Harrison
- Description: Power-laws provide a means for investigating snow avalanche frequency-magnitude relationships and their contributing factors. This research uses power...
- Object ID: P__8119.pdf
- Keywords: power-law exponent, snow avalanche size proportions, frequency and magnitude
- View additional details about Avalanche Frequency and Magnitude: Using Power-Law Exponents to Investigate Snow Avalanche Size Proportions through Time and Space
- Title: The Effect of Changing Slab Thickness on Fracture Propagation
- Date: 2008-09-22
- Authors: Ron Simenhois, Karl Birkeland
- Description: Many avalanches are triggered from shallower parts of a slope. Past research demonstrates that initiating fractures in such areas is easier than in de...
- Object ID: P__8045.pdf
- Keywords: ect, extended column test, pst, propagation saw test, fracture propagation
- View additional details about The Effect of Changing Slab Thickness on Fracture Propagation
- Title: The Avalanche Disaster of Galtür in 1999 - The Rescue Operation, Analyses with Recalculation and Countermeasures
- Date: 2008-09-22
- Authors: Gebhard H. Walter
- Description: On the 23 of February a catastrophic avalanche disaster happened. It took place in the Tyrolean village of Galtür in the Austrian Alps. Heavy snows...
- Object ID:
- Keywords: avalanche, size, recreationalists, killed, injured
- View additional details about The Avalanche Disaster of Galtür in 1999 - The Rescue Operation, Analyses with Recalculation and Countermeasures
- Title: Limitations and Possibilities: Usage of the Avalanche Simulation Model Samosat in the Planning of Dams
- Date: 2008-09-22
- Authors: Antonia Zeidler, Peter Sampl
- Description: In Austria it becomes more and more common to use avalanche dynamic models as a tool to optimize the construction of dams. In this paper we will use t...
- Object ID:
- Keywords: avalanche, dynamics
- View additional details about Limitations and Possibilities: Usage of the Avalanche Simulation Model Samosat in the Planning of Dams
- Title: Associations Between Shear Strength of a Buried Surface Hoar Layer and Stratigraphic, Topographic and Vegetation Characteristics on a “Uniform†Slope
- Date: Unknown
- Authors: Eric Lutz, Karl W. Birkeland, Martin Schneebeli, Kathy J. Hansen, Kalle Kronholm
- Description: Extended Abstract. In this study we quantify 1) changes in spatial and aspatial characteristics of the shear strength of a buried surface hoar layer,...
- Object ID: issw-2006-027-028.pdf
- Keywords: shear strength, snow stratigraphy, snow microstructure, slope uniformity
- View additional details about Associations Between Shear Strength of a Buried Surface Hoar Layer and Stratigraphic, Topographic and Vegetation Characteristics on a “Uniform†Slope
- Title: The Extended Column Test: A Field Test for Fracture Initiation and Propagation
- Date: 2006
- Authors: Ron Simenhois, Karl Birkeland
- Description: For dry slab avalanches, fractures initiate and propagate in a weak layer or along an
interface. Current field tests like compression or stuffblock t...
- Object ID: issw-2006-079-085.pdf
- Keywords: stability test, avalanche forecasting, stability assessment, fracture propagation
- View additional details about The Extended Column Test: A Field Test for Fracture Initiation and Propagation
- Title: Evolving Shear Strength, Stability and Snowpack Properties in Storm Snow
- Date: 2006
- Authors: Catherine Brown, Bruce Jamieson
- Description: There is a lack of measurements on the rapidly changing mechanical and physical
properties of non-persistent instabilities in storm snow. Given the i...
- Object ID: issw-2006-015-021.pdf
- Keywords: non-persistent weak layers, storm snow, shear strength, stability indices
- View additional details about Evolving Shear Strength, Stability and Snowpack Properties in Storm Snow
- 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
- View additional details about Uncertainties in Assessing the Stability of Fractured Slopes
- Title: Interfacial Crack Velocities in a Snow Slab – Numerical Simulation
- Date: 2006
- Authors: P. Mahajan, S.K. Joshi
- Description: A snow pack consists of weak layers embedded in strong layers. The interface bond
between a weak layer and layers in between which it is sandwiched m...
- Object ID: issw-2006-092-100.pdf
- Keywords: cohesive zone, dynamic crack growth, weak layer, snow, finite element
- View additional details about Interfacial Crack Velocities in a Snow Slab – Numerical Simulation
- Title: Slab Avalanche Triggering: A Combination of Four Basic Phenomena in Series
- Date: 2006
- Authors: Alain Duclos, François Louchet
- Description: There is still a significant gap between models describing slab avalanche
triggering mechanisms and practical field applications in terms of risk pre...
- Object ID: issw-2006-101-106.pdf
- Keywords: avalanche triggering, crack propagation, avalanche program
- View additional details about Slab Avalanche Triggering: A Combination of Four Basic Phenomena in Series
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