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Modeling of landslide-generated tsunamis with GRASS / M. Cannata in Transactions in GIS, vol 16 n° 2 (April 2012)  

Public [article]  inTransactions in GIS > vol 16 n° 2 (April 2012) . - pp 191 - 214 Titre : Modeling of landslide-generated tsunamis with GRASS Type de document : Article/Communication Auteurs : M. Cannata, Auteur ; R. Marzocchi, Auteur ; Monia Elisa Molinari, Auteur Année de publication : 2012 Article en page(s) : pp 191 - 214 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] effondrement de terrain [Termes IGN] GRASS [Termes IGN] Italie [Termes IGN] lac [Termes IGN] risque naturel [Termes IGN] simulation [Termes IGN] tsunami Résumé : (Auteur) The following research aims to enhance and spread the capacity of assessing risk due to landslide-generated tsunamis by fostering the use of a GIS (Geographic Information System), and in this particular instance, an Open Source GIS (where “Open Source” can be loosely defined as freely available source code). For this purpose, we tested a procedure to be spatially implemented in the Open Source GRASS GIS through developing a module named r.impact.tsunami that simulates landslide-generated tsunami. In this article we present its application in a case study performed on Como Lake (Lago di Como) in northern Italy. The review of the results identified sources of uncertainties while the model sensitivity outlined the influence of the parameters governing the model. Moreover, in order to verify the model validity, we implemented a new module (r.swe), that simulates the tsunami propagation and run-up with the shallow water equations, and compared the results. Notwithstanding non-negligible differences, the two models produced results of the same magnitude; this confirmed the validity of both models, although a rigorous validation of the models could not be performed due to the lack of observed data. Numéro de notice : A2012-160 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01315.x Date de publication en ligne : 13/04/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01315.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31607 [article]