Predicting snow velocity in large chute flows under different environmental conditions

JC Rougier, M Kern

Research output: Contribution to journalArticle (Academic Journal)

5 Citations (Scopus)

Abstract

Observations, model evaluations and expert judgements are combined to make predictions of snow velocity in large chute experiments. Different experimental variables, namely the environmental conditions snow density and snow surface temperature, affect all aspects of this inference. We show how the effect of these two variables can be incorporated in our judgements regarding the uncertain parameters of the physical model, the discrepancy between the physical model and reality and the observation error. We adopt a Bayes linear approach to avoid the necessity of fully probabilistic belief specifications and demonstrate visual tools for statistical validation. Our results represent an important first step in improving the specification of uncertainty in model-based avalanche hazard mapping.
Translated title of the contributionPredicting snow velocity in large chute flows under different environmental conditions
Original languageEnglish
Pages (from-to)737 - 760
Number of pages24
JournalJournal of the Royal Statistical Society: Series C
Volume59, issue 5
DOIs
Publication statusPublished - Nov 2010

Bibliographical note

Publisher: Blackwell Publishing

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