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Titel |
Spatially explicit avalanche risk assessment linking Bayesian networks to a GIS |
VerfasserIn |
A. Grêt-Regamey, D. Straub |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Science ; 6, no. 6 ; Nr. 6, no. 6 (2006-10-26), S.911-926 |
Datensatznummer |
250003803
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Publikation (Nr.) |
copernicus.org/nhess-6-911-2006.pdf |
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Zusammenfassung |
Avalanche disasters are associated with significant monetary losses. It is
thus crucial that avalanche risk assessments are based on a consistent and
proper assessment of the uncertainties involved in the modelling of the
avalanche run-out zones and the estimations of the damage potential. We link
a Bayesian network (BN) to a Geographic Information System (GIS) for
avalanche risk assessment in order to facilitate the explicit modelling of
all relevant parameters, their causal relations and the involved
uncertainties in a spatially explicit manner. The suggested procedure is
illustrated for a case study area (Davos, Switzerland) located in the Swiss
Alps. We discuss the potential of such a model by comparing the risks
estimated using the probabilistic framework to those obtained by a
traditional risk assessment procedure. The presented model may serve as a
basis for developing a consistent and unified risk assessment approach. |
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