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Your search for Keyword "propagation."resulted in 79 records.

Title: THE ROLE OF SLOPE ANGLE IN SKIER-TRIGGERED SLAB AVALANCHE RELEASE
Date: 2026-09-28
Authors: Stephan Harvey, Alec van Herwijnen, Yannik Werner, Valentin Adam
Description: Slope angle is a key factor in dry-slab avalanche formation and central to avalanche education and terrain assessment. Combined with the avalanche dan...
Object ID: ISSW2026_FS2.4.pdf
Keywords: slope angle, slab avalanche release, failure initiation, crack propagation, friction, skier triggering
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Title: A REVIEW OF AVALANCHE RELEASE MECHANISMS: FROM ANTICRACK PROPAGATION TO SUPERSHEAR FRACTURE
Date: 2026-09-28
Authors: Johan Gaume, Alec van Herwijnen, Jürg Schweizer
Description: Dry-snow slab avalanches are responsible for most avalanche fatalities, making understanding of release mechanisms essential for forecasting and hazar...
Object ID: ISSW2026_O1.1.pdf
Keywords: dry-snow slab avalanche, avalanche release, weak layer, failure initiation, crack propagation, anticrack, supershear fracture, slab fracture.
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Title: STABILITY CHANGES AFTER WEAK LAYER COLLAPSE: INSIGHTS FROM AN UNEXPECTED DATASET
Date: 2026-09-28
Authors: Andrea Bruckmeier, Erika Birkeland, Ron Simenhois, Alex Marienthal, Erich Peitzsch, Karl W. Birkeland
Description: While conducting avalanche mitigation or traveling through the backcountry, avalanche professionals sometimes experience a "whumpf": a collapse-mode c...
Object ID: ISSW2026_O1.3.pdf
Keywords: whumpf, crack propagation, propagation saw test (pst), snowpack stability, avalanche release
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Title: Slab Fractures during Dynamic Crack Propagation in Dry-Snow Slab Avalanches
Date: 2026-09-28
Authors: Francis Meloche, Bertil Trottet, Grégoire Bobillier, Johan Gaume
Description: Predicting the size of dry-snow slab avalanches remains difficult, limiting hazard assessment despite major advances in the understanding of crack ini...
Object ID: ISSW2026_O1.7.pdf
Keywords: slab fracture, crack propagation, avalanche size, release size index
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Title: ON HOW THE TEMPORAL EVOLUTION OF SLAB AND WEAK LAYER PROPERTIES AFFECTS FAILURE INITIATION AND CRACK PROPAGATION IN DRY-SNOW SLAB AVALANCHE FORMATION
Date: 2026-09-28
Authors: Jürg Schweizer, Benjamin Reuter, Christoph Mitterer
Description: In the European Alps, the avalanche situation in winter 2025/26 was dominated by persistent weak layers. Very many dry-snow slab avalanches were trigg...
Object ID: ISSW2026_O4.6.pdf
Keywords: dry-snow slab avalanche, failure initiation, crack propagation, snow stability, weak layer, strength, toughness
View additional details about ON HOW THE TEMPORAL EVOLUTION OF SLAB AND WEAK LAYER PROPERTIES AFFECTS FAILURE INITIATION AND CRACK PROPAGATION IN DRY-SNOW SLAB AVALANCHE FORMATION

Title: FROM UAS SNOW DEPTH SURVEYS TO AVALANCHE RUNOUT: A MODEL CHAIN OF AVALANCHE RUNOUT FOR HIGHWAY FORECASTING OPERATIONS
Date: 2026-09-28
Authors: Ron Simenhois, Ryan Zarter, Valerie Foley, John Snook, Mike Cooperstein, Ethan Greene
Description: Avalanche programs that protect highways need to know whether an avalanche in a specific path will reach the road. Forecasters estimate this from expe...
Object ID: ISSW2026_O7.3.pdf
Keywords: avalanche forecasting, runout modeling, uas, photogrammetry, snowpack modeling, crack propagation
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Title: DYNAMIC CRACK PROPAGATION SPEED TRANSITION IN MULTILAYER SYSTEMS
Date: 2026-09-28
Authors: Shubo Zhang, Nicola M. Pugno
Description: The dynamic propagation of cracks in solids is widely observed in nature, such as in snow avalanches. Pioneering studies have demonstrated that the up...
Object ID: ISSW2026_P1.35.pdf
Keywords: dynamic crack propagation, snow avalanche, multilayer system.
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Title: USING MODIFIED PROPAGATION SAW TESTS TO TRACK INCREMENTAL CHANGES IN SNOWPACK STABILITY
Date: 2026-09-28
Authors: Itai Sheleg, Bruce Jamieson, Karl W. Birkeland, Dave Gauthier, Ron Simenhois
Description: Backcountry avalanche forecasters issue daily snowpack stability assessments to guide danger ratings and travel recommendations. Stability trends are ...
Object ID: ISSW2026_P2.12.pdf
Keywords: propagation saw test, crack propagation, snowpack stability, avalanche forecasting
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Title: LAYERWISE: A FRACTURE-MECHANICAL CONCEPT FOR SNOW PROFILE INTERPRETATION
Date: 2026-09-28
Authors: Yannik Werner, Valentin Adam, Stephan Harvey, Mary Kate Carara, Samuel Verplanck, Alec van Herwijnen, Florian Rheinschmidt, Philipp Weißgraeber, Philipp L. Rosendahl
Description: When interpreting a snow profile, snow industry professionals rely on accumulated knowledge and intuition to judge overall snowpack stability. Explici...
Object ID: ISSW2026_P3.33.pdf
Keywords: snow stability assessment, analytical modelling, decision support, interactive learning, avalanche initiation, propagation potential
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Title: WHUMPING OF A PERSISTENT DEPTH HOAR WEAK LAYER: ANALYSIS OF A RARE COMBINATION OF MANUAL STABILITY TESTS AND AUTOMATED SNOW MEASUREMENTS
Date: 2026-09-28
Authors: Benjamin Walter, Christoph Marty, Fabian Wolfsperger, Alec van Herwijnen, Francesco Pellegrini, Alexandra von der Esch, Yiyao Chen, Kalin Markov
Description: Whumpf sounds indicate the collapse of a buried weak layer and are associated with fracture propagation over distances of tens of meters without avala...
Object ID: ISSW2026_P4.6.pdf
Keywords: depth hoar, persistent weak layer, whumpf, fracture propagation, snow stability
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Title: HUNTING MACH CONES IN SNOW:SUPERSHEAR FRACTURE & SHOCK FRONT REFRACTION IN LAYERED SLABS
Date: 2026-09-28
Authors: Alexandre Pellet, Bastian Bergfeld, Alec van Herwijnen, Johan Gaume
Description: Supershear crack propagation has recently been identified as an important mechanism in snow slab avalanche release. In this regime, the crack in the w...
Object ID: ISSW2026_P1.16.pdf
Keywords: snow slab avalanche, crack propagation, supershear fracture, mach cone, weak layer, propagation saw test, snow stratigraphy.
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Title: FLOWING FROM RELEASE TO RUNOUT: HIGH-RESOLUTION RADAR MEASUREMENTS OF SNOW AVALANCHES
Date: 2024-09-23
Authors: Anselm Köhler, Michael Neuhauser, Gregoire Bobillier, Jan-Thomas Fischer
Description: Radar technology is indispensable in the context of snow avalanche monitoring. Practitioners rely on the capabilities of related real-time detection ...
Object ID: ISSW2024_O2.1.pdf
Keywords: avalanche dynamics, radar measurements, weak layer crack propagation speed, front velocity
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Title: A GUIDANCE FOR THE INTERPRETATION OF PROPAGATION SAW TESTS
Date: 2024-09-23
Authors: Philipp L. Rosendahl, Valentin Adam, Stephan Harvey, Bastian Bergfeld, Florian Rheinschmidt, Melin D. E. Walet, Jakob Schöttner, Alec van Herwijnen, Philipp Weißgraeber
Description: Assessing snowpack stability is crucial for determining the avalanche danger level. In this context, the propagation saw test is a valuable tool, thou...
Object ID: ISSW2024_O3.4.pdf
Keywords: dry-snow slab avalanches, fracture toughness, stability test, propagation saw test, propagation probability, real-time application
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Title: EXPANDING THE KNOWLEDGE OF WEAK-LAYER FRACTURE INTO CROSS-SLOPE DIRECTION
Date: 2024-09-23
Authors: Florian Rheinschmidt, Valentin Adam, Bastian Bergfeld, Melin D. E. Walet, Jakob Schöttner, Philipp Weißgraeber, Alec van Herwijnen, Philipp L. Rosendahl
Description: Fracture toughness, a critical material parameter for assessing resistance to crack growth, has been extensively studied in weak snow layers for mode ...
Object ID: ISSW2024_O3.5.pdf
Keywords: dry-snow slab avalanches, fracture toughness, cross-slope-propagation, out-of-plane loading, weak snow layers
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Title: THE EFFECT OF SLOPE ANGLE ON CRITICAL CUT LENGTH MEASURED IN PROPAGATION SAW TESTS
Date: 2024-09-23
Authors: Bastian Bergfeld, Valentin Adam, Philipp L. Rosendahl, Alec van Herwijnen
Description: Assessing avalanche triggering potential requires detailed information on failure initiation and crack propagation. The propagation saw test (PST) is ...
Object ID: ISSW2024_P3.12.pdf
Keywords: stability test, propagation saw test, edge effect, failure initiation, crack propagation
View additional details about THE EFFECT OF SLOPE ANGLE ON CRITICAL CUT LENGTH MEASURED IN PROPAGATION SAW TESTS