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A Bayesian procedure for Probabilistic Tsunami Hazard Assessment
Author(s)
Language
English
Obiettivo Specifico
4.4. Scenari e mitigazione del rischio ambientale
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
1/53 (2010)
Pages (printed)
159-174
Issued date
April 2010
Last version
http://www.earth-prints.org/handle/2122/5448
Abstract
In this paper, a Bayesian procedure is implemented for the Probability Tsunami Hazard Assessment (PTHA). The approach is general and modular incorporating all significant information relevant for the hazard assessment, such as theoretical and empirical background, analytical or numerical models, instrumental and historical data. The procedure provides the posterior probability distribution that integrates the prior probability distribution based on the physical knowledge of the process and the likelihood based on the historical data. Also, the method deals with aleatory and epistemic uncertainties incorporating in a formal way all sources of relevant uncertainty, from the tsunami generation process to the wave propagation and impact on the coasts. The modular structure of the procedure is flexible and easy to modify and/or update as long as new models and/or information are available. Finally, the procedure is applied to an hypothetical region, Neverland, to clarify the PTHA evaluation in a realistic case.
Type
article
File(s)
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Name
Grezio_etal_2009.pdf
Size
319.96 KB
Format
Adobe PDF
Checksum (MD5)
66c2ae432fcdf76ea7034c2d7d0be86b