Investigation théorique et expérimentale des caractéristiques dynamiques des avalanches de neige dense

Brugnot, Gérard; Vila, Jean‐Paul

doi:10.1051/lhb/1985005

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…As explained above, the avalanche motion can be simulated by several methods, but only two of them are available in ELSA: the method presented by Bakkehøi and others (1981, modified from the Voellmy’s method) and the Saint-Venant’s model solved by the numerical scheme created by Vila (1984) and developed by Martinet (1992).…”

Section: Modelling Several Phenomenamentioning

confidence: 99%

“…Snow specialists can use simulation methods based on mechanical equations. Numerous models have been developed from Voellmy’s model mainly to describe a flowing avalanche (Bakkehøi and others, 1981; Beghin and Brugnot, 1983; Brugnot and Vila, 1985; Norem and others, 1989; Salm and others, 1990; Martinet, 1992; Brandstätter and others, unpublished).…”

Section: Introductionmentioning

confidence: 99%

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Avalanche modelling and integration of expert knowledge in the ELSA system

Buisson¹,

Charlier²

1993

Ann. Glaciol.

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ABSTRACT. The choice of the best protection system against avalanches on a particular path requires an accurate description, or image, of these avalanches. In order to get this image, avalanche consultants can use several numerical models which are often difficult to handle. Moreover, these models deal only with a part of the phenomena involved in avalanches and ignore the others. As a result, the consultants must use their experience and knowledge to imagine the avalanches on any particular path.This paper presents ELSA (Etude et Limites de Sites Avalancheux), a computer system dedicated to the modelling of the knowledge of avalanche experts and to the integration of the new symbolic computer models with the classical numerical models.The basic aim of integration is to build a unique computer system incorporating all these models.After a description of the terrain representation, we present the differen t scenarios that ELSA takes into account. Then, the methods which deal with some phenomena occurring in avalanches are described. The problems involved in the integration of these methods close this paper.

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Section: Modelling Several Phenomenamentioning

confidence: 99%