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Looking beyond the powder/dense flow avalanche dichotomy

Faug, T.; Turnbull, Barbara; Gauer, P.

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Authors

T. Faug

P. Gauer



Abstract

Köhler et al. (2018) deploy a high spatial and temporal resolution GEODAR radar system to reveal the inside of snow avalanches over the entire slope. They detect a rich variety of longitudinal and slope normal flow structures across a data set of 77 avalanches recorded over 6 years. Distinctive features in the radar signatures permit the definition of seven flow regimes and three distinct stopping signatures, illustrating behaviours much richer than the conventional dichotomy between dense flow avalanches and powder snow avalanches. This presents modellers with the challenge of exploring the physics of these regimes, the transitions between them and their relationship with the surrounding conditions.

Citation

Faug, T., Turnbull, B., & Gauer, P. (2018). Looking beyond the powder/dense flow avalanche dichotomy. Journal of Geophysical Research: Earth Surface, 123(6), https://doi.org/10.1002/2018JF004665

Journal Article Type Article
Acceptance Date Mar 4, 2018
Online Publication Date Mar 22, 2018
Publication Date Jun 1, 2018
Deposit Date Apr 9, 2018
Publicly Available Date Mar 28, 2024
Journal Journal of Geophysical Research: Earth Surface
Print ISSN 2169-9011
Electronic ISSN 2169-9011
Publisher American Geophysical Union
Peer Reviewed Peer Reviewed
Volume 123
Issue 6
DOI https://doi.org/10.1002/2018JF004665
Public URL https://nottingham-repository.worktribe.com/output/961291
Publisher URL https://agupubs.onlinelibrary.wiley.com/doi/10.1002/2018JF004665

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