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- 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...
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- Keywords: avalanche, dynamics
- View additional details about Limitations and Possibilities: Usage of the Avalanche Simulation Model Samosat in the Planning of Dams
- Title: Evaluating a Prototype Field Test for Weak Layer Fracture and Failure Propagation
- Date: 2006
- Authors: Dave Gauthier, Bruce Jamieson
- Description: Researchers and practitioners currently lack a quantitative field test that indicates the propensity of a given slab and weak layer combination to pro...
- Object ID: issw-2006-107-116.pdf
- Keywords: fracture propagation, field test, extended column, snowpack stability, avalanche forecasting
- View additional details about Evaluating a Prototype Field Test for Weak Layer Fracture and Failure Propagation
- 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: 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: 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
- Title: Size Effects in Slab Avalanche Fractures
- Date: 2006
- Authors: D.M. McClung, C. Borstad
- Description: Size effects in snow failure are an important aspect of avalanche release. A
size effect implies that larger samples have smaller strength than small...
- Object ID: issw-2006-182.pdf
- Keywords: size effect, avalanche fractures, tensile, shear, snow mechanics
- View additional details about Size Effects in Slab Avalanche Fractures
- Title: Fracture and Accumulation Conditions of Snowflakes on the Snow Surface
- Date: 2006
- Authors: Takeshi Sato, Kenji Kosugi, Shigeto Mochizuki, Masaki Nemoto
- Description: Snowflakes colliding with the snow surface break under strong wind conditions and
their fragments are blown off, which leads to the development of dr...
- Object ID: issw-2006-203-210.pdf
- Keywords: snowflake, fracture, accumulation, drifting snow, snowfall
- View additional details about Fracture and Accumulation Conditions of Snowflakes on the Snow Surface
- 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
- View additional details about Snow Slope Stability Evaluation Using Concepts of Fracture Mechanics
- Title: Some Results of Statistical Processing of Avalanche Geometric Characteristics in the Khibini Mountains
- Date: 2006
- Authors: Pavel Chernous
- Description: Results of statistical analysis of such geometric characteristics as: length and thickness of fracture line, area of its surface, avalanche runout dis...
- Object ID: issw-2006-387.pdf
- Keywords: avalanche dimensions, statistics, catastrophic avalanches
- View additional details about Some Results of Statistical Processing of Avalanche Geometric Characteristics in the Khibini Mountains
- 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
- View additional details about Relating Spatial Variability to Snow Stability Using a Cellular Automaton Model Initialized with Field Data
- Title: Observations of an Increase in Slab Thickness After Fracture
- Date: 2004
- Authors: Robbie Fuller
- Description: In the fracturing of snow peripheral to avalanches and in events where slabs have
fractured but did not slide, the failed, or downslope, part of the ...
- Object ID: issw-2004-032-038.pdf
- Keywords: strain, elastic, rebound
- View additional details about Observations of an Increase in Slab Thickness After Fracture
- 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
- View additional details about Experiments in Layered Snow Samples Under Shear and Tension
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