Automatic determination of slab avalanche release areas

Détermination automatique des zones de départ d'avalanches

V. Douzal
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V. Douzal: UR ETGR (ETNA) - Érosion torrentielle, neige et avalanches - CEMAGREF - Centre national du machinisme agricole, du génie rural, des eaux et forêts, UMR TETIS - Territoires, Environnement, Télédétection et Information Spatiale - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - AgroParisTech - CEMAGREF - Centre national du machinisme agricole, du génie rural, des eaux et forêts

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Abstract: Today, avalanche hazard zoning can benefit numerical simulations of their propagation. But determining their release areas remains a manual operation, which has the potential to strongly bias the conclusions. This work aims at providing a publicly available operational method to determine large avalanche release areas. We apply image processing methods to a digital elevation model of the relief, with filters and combinations between image planes, navigating the scale space.

Keywords: MODELISATION; AVALANCHES; ZONAGE DE RISQUE; TRAITEMENT D'IMAGE; RISQUES NATURELS; ZONES DE DEPART D'AVALANCHES; ESPACE D'ECHELLE (search for similar items in EconPapers)
Date: 2008
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Published in [Rapport de recherche] irstea. 2008, pp.60

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