C035
Snow avalanche dynamics and forecasting: Processes, monitoring, and modeling
Session ID#: 159485
Session Description:
Snow avalanches are a natural hazard to communities, commerce, and transportation corridors in mountainous regions worldwide. Understanding processes from avalanche formation to hazard mapping to mitigation and forecasting strategies is critical to protect life and property, particularly in a changing climate. Recent advances in avalanche research have greatly improved our fundamental understanding and practical applications, yet difficult challenges remain. This session aims to explore diverse perspectives related to physical, meteorological, and mechanical processes and dynamics associated with avalanche formation, occurrence, and monitoring. We welcome a broad range of contributions from both basic and applied avalanche research topics, including but not limited to the mechanical properties of snow microstructure, avalanche modeling, stability assessment, meteorological drivers, snowpack spatial variability, avalanche release mechanics, avalanche mapping, remote avalanche detection, and avalanche forecasting.
Index Terms:
0736 Snow [CRYOSPHERE]
0742 Avalanches [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]
4315 Monitoring, forecasting, prediction [NATURAL HAZARDS]
Primary Convener: Erich Peitzsch, USGS, Northern Rocky Mountain Science Center, West Glacier, MT, United States
Conveners: Ned Bair, Earth Research Institute, Santa Barbara, United States, Hans-Peter Marshall, Boise State University, Department of Geosciences, Boise, ID, United States and Jeffrey S Deems, University of Colorado, Boulder, CO, United States
Using SnowModel to Simulate Spatial Distribution of Wind Deposited Snow in Mount Washington, NH Avalanche Terrain (1046039)
Cameron Wagner, University of New Hampshire Main Campus, Civil Engineering, Durham, NH, United States, Adam Hunsaker, Durham, NH, United States and Jennifer M Jacobs, University of New Hampshire, Institute for the Study of Earth, Oceans, and Space; Civil and Environmental Engineering, Durham, NH, United States
Understanding Snow Deposition Patterns Leading to Natural Avalanche Formation in Heterogenous Mountain Terrain (1063089)
Zachary Miller, USGS Geological Survey, Northern Rocky Mountain Science Center, Menlo Park, CA, United States, Erich Peitzsch, USGS, Northern Rocky Mountain Science Center, West Glacier, MT, United States, Eric A Sproles, Montana State University, Earth Sciences, Bozeman, MT, United States, Karl Birkeland, US Forest Service, National Avalanche Center, Bozeman, MT, United States and Ross Palomaki, University of Virginia, Environmental Sciences, Charlottesville, VA, United States
Developing a New Ultrasound Laser System to Quantify the Mechanical Properties and Microstructure of Seasonal Snowpack (1066285)
James McCaslin, Boise State University, Boise, ID, United States, Thomas Mikesell, Boise State University, Boise, United States and Hans-Peter Marshall, Boise State University, Department of Geosciences, Boise, ID, United States
Validation and Localization of an Automated Method for Large Scale Avalanche Terrain Exposure Scale (ATES) Mapping (1092751)
John Sykes, Simon Fraser University, Geography, Burnaby, BC, Canada, Håvard Toft Larsen, Norwegian Water Resources and Energy Directorate, Oslo, Norway and Pascal Haegeli, Simon Fraser University, Burnaby, BC, Canada
Avalanches in L-band InSAR imagery during the 2020-21 NASA SnowEx Mission (1151640)
Hans-Peter Marshall1, Zachary Keskinen2, Jeffrey Bruce Johnson1, Scott Havens3, Jack Tarricone4, Elias J Deeb5, Jewell Lund6 and Richard R Forster7, (1)Boise State University, Department of Geosciences, Boise, ID, United States, (2)Boise State University, Boise, ID, United States, (3)Snowbound Solutions, Boise, United States, (4)University of Nevada, Reno, Graduate Program of Hydrologic Sciences, Reno, United States, (5)U.S. Army Corps of Engineers, Cold Regions Research and Engineering Laboratory, Hanover, United States, (6)Colorado State University, Fort Collins, United States, (7)Department of Geography, University of Utah, Salt Lake City, UT, United States
Assessing the Placement of Proposed Remote Avalanche Control Systems Using Lidar-derived Snow Maps and Dynamical Avalanche Modeling (1158117)
Katreen Wikstrom Jones1, Gabriel J Wolken2, Matt McKee3, Yves Bühler4, Perry Bartelt5 and Marc Christen4, (1)Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States, (2)Dept. of Natural Resources, Fairbanks, AK, United States, (3)Alaska Railroad Corporation, Anchorage, United States, (4)WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland, (5)WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
Tracking Snow Avalanches Using a Network of Infrasound Arrays in Little Cottonwood Canyon (Utah, USA) (Invited) (1161161)
Jeffrey Bruce Johnson1, Scott Havens2, Jacob Anderson1, Leighton Myles Watson3, Hans-Peter Marshall1, Jerry Mock1 and Zachary Keskinen4, (1)Boise State University, Department of Geosciences, Boise, ID, United States, (2)Snowbound Solutions, Boise, United States, (3)University of Auckland, Auckland, New Zealand, (4)Boise State University, Boise, ID, United States
Snow Avalanche Hazard Mapping for the State of Alaska (1164635)
Gabriel J Wolken1,2, Elizabeth Fischer2, Yves Bühler3, Rick Lader2, Marc Christen3 and Katreen Wikstrom Jones1, (1)Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, Fairbanks, United States, (3)WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland
