Articles | Volume 18, issue 3
07 Mar 2018
 | 07 Mar 2018

Dynamic magnification factors for tree blow-down by powder snow avalanche air blasts

Perry Bartelt, Peter Bebi, Thomas Feistl, Othmar Buser, and Andrin Caviezel

Related authors

Simulation of cold powder avalanches considering daily snowpack and weather situations to enhance road safety
Julia Glaus, Katreen Wikstrom Jones, Perry Bartelt, Marc Christen, Lukas Stoffel, Johan Gaume, and Yves Bühler
EGUsphere,,, 2024
Short summary
Shape still matters: rockfall interactions with trees and deadwood in a mountain forest uncover a new facet of rock shape dependency
Adrian Ringenbach, Peter Bebi, Perry Bartelt, Andreas Rigling, Marc Christen, Yves Bühler, Andreas Stoffel, and Andrin Caviezel
Earth Surf. Dynam., 11, 779–801,,, 2023
Short summary
Dynamic response and breakage of trees subject to a landslide-induced air blast
Yu Zhuang, Aiguo Xing, Perry Bartelt, Muhammad Bilal, and Zhaowei Ding
Nat. Hazards Earth Syst. Sci., 23, 1257–1266,,, 2023
Short summary
Modeling deadwood for rockfall mitigation assessments in windthrow areas
Adrian Ringenbach, Peter Bebi, Perry Bartelt, Andreas Rigling, Marc Christen, Yves Bühler, Andreas Stoffel, and Andrin Caviezel
Earth Surf. Dynam., 10, 1303–1319,,, 2022
Short summary
The impact of terrain model source and resolution on snow avalanche modeling
Aubrey Miller, Pascal Sirguey, Simon Morris, Perry Bartelt, Nicolas Cullen, Todd Redpath, Kevin Thompson, and Yves Bühler
Nat. Hazards Earth Syst. Sci., 22, 2673–2701,,, 2022
Short summary

Related subject area

Other Hazards (e.g., Glacial and Snow Hazards, Karst, Wildfires Hazards, and Medical Geo-Hazards)
AutoATES v2.0: Automated Avalanche Terrain Exposure Scale mapping
Håvard B. Toft, John Sykes, Andrew Schauer, Jordy Hendrikx, and Audun Hetland
Nat. Hazards Earth Syst. Sci., 24, 1779–1793,,, 2024
Short summary
Modelling the vulnerability of urban settings to wildland–urban interface fires in Chile
Paula Aguirre, Jorge León, Constanza González-Mathiesen, Randy Román, Manuela Penas, and Alonso Ogueda
Nat. Hazards Earth Syst. Sci., 24, 1521–1537,,, 2024
Short summary
Modeling of indoor 222Rn in data-scarce regions: an interactive dashboard approach for Bogotá, Colombia
Martín Domínguez Durán, María Angélica Sandoval Garzón, and Carme Huguet
Nat. Hazards Earth Syst. Sci., 24, 1319–1339,,, 2024
Short summary
A regional early warning for slushflow hazard
Monica Sund, Heidi A. Grønsten, and Siv Å. Seljesæter
Nat. Hazards Earth Syst. Sci., 24, 1185–1201,,, 2024
Short summary
A new approach for drought index adjustment to clay-shrinkage-induced subsidence over France: advantages of the interactive leaf area index
Sophie Barthelemy, Bertrand Bonan, Jean-Christophe Calvet, Gilles Grandjean, David Moncoulon, Dorothée Kapsambelis, and Séverine Bernardie
Nat. Hazards Earth Syst. Sci., 24, 999–1016,,, 2024
Short summary

Cited articles

Bartelt, P. and Stöckli, V.: The influence of tree and branch fracture, overturning and debris entrainment on snow avalanche flow, Ann. Glaciol., 32, 209–216, 2001. a
Bozhinskiy, A. N. and Losev, K. S.: The fundamentals of avalanche science, Mitt. Eidgenöss. Inst. Schnee- Lawinenforsch., Davos, p. 280, 1998. a
Chajes, A.: Principles of Structural Stability Theory, Prentice Hall Inc, Englewood Cliffs, p. 336, 1974. a
Clough, R. W. and Penzien, J.: Dynamics of Structures, McGraw-Hill Inc, New York, p. 634, 1975. a, b, c, d, e, f, g
Coutts, M.: Root architecture and tree stability, Plant Soil, 71, 171–188, 1983. a
Short summary
We study how short duration powder avalanche blasts break and overturn tall trees. Tree blow-down is often used to back-calculate avalanche pressure and therefore constrain avalanche flow velocity and motion. We find that tall trees are susceptible to avalanche air blasts because the duration of the air blast is near to the period of vibration of tall trees. Dynamic magnification factors should therefore be considered when back-calculating powder avalanche impact pressures.
Final-revised paper