Articles | Volume 23, issue 4
https://doi.org/10.5194/nhess-23-1383-2023
https://doi.org/10.5194/nhess-23-1383-2023
Research article
 | 
18 Apr 2023
Research article |  | 18 Apr 2023

Development and evaluation of a method to identify potential release areas of snow avalanches based on watershed delineation

Cécile Duvillier, Nicolas Eckert, Guillaume Evin, and Michael Deschâtres

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Cited articles

ADEME and IGN: Contribution de l'IGN à l'établissement des bilans carbone des forêts des territoires (PCAET), 122-4, https://www.territoires-climat.ademe.fr/Uploads/media/default/0001/01/02555bb8e15c98da373799a510ae5561aaadb2b0.pdf (last access: 20 February 2023)​​​​​​​, 2019. 
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Ancey, C.: Guide Neige et avalanches Connaissances, pratiques, sécurité, Editions Quae, ISBN 978-2857447979, Paris, 1996. 
Ancey, C., Rapin, F., and Taillandier, J. M.: Stratégie de protection des établissements hospitaliers de Saint-Hilaire-du-Touvet contre le risque d'avalanches, irstea, 108 pp., https://hal.inrae.fr/hal-02578607 (last access: 20 February 2023)​​​​​​​, 1999. 
Ancey, C., Rapin, F., Martin, E., Coleou, C., Naaim, M., and Brunot, G.: L'avalanche de Péclerey du 9 février 1999, Houille Blanche, 5, 45–53, 2000. 
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Short summary
This study develops a method that identifies individual potential release areas (PRAs) of snow avalanches based on terrain analysis and watershed delineation and demonstrates its efficiency in the French Alps context using an extensive cadastre of past avalanche limits. Results may contribute to better understanding local avalanche hazard. The work may also foster the development of more efficient PRA detection methods based on a rigorous evaluation scheme.
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