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| Titel |
Tsunami Vulnerability in the NE Atlantic: Towards a new approach to estimate the damage grade on coastal buildings |
| VerfasserIn |
Rachid Omira, Sabah Benchekroun, Maria Ana Baptista |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250079563
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| Zusammenfassung |
| In the NE Atlantic region, large effort has been conducted during the last decade to better understand hazard and vulnerability of coastal areas exposed to tsunami impact. As results of this focus, tsunami hazard is well established through the compilation of tsunami catalogs, identification of earthquake sources able to generate large tsunamis and deterministic computation of sites-specific tsunami inundations. On the other hand, tsunami vulnerability of buildings is still poorly understood in spite of some few studies that attempt to quantify the vulnerability of specific exposed elements.
This study focuses on the investigation of tsunami vulnerability of coastal buildings in the NE Atlantic region. We present the core of the building tsunami vulnerability (BTV) model developed by Omira et al (2010), its validation and application to a coastal area of the NE Atlantic. For the harbor city of Tangier (Morocco, we adopt an enhanced version of the BTV model that takes account of new factors that influence building vulnerability. We compare vulnerability results, in this test site, for both original and modified BTV models. Results, from Tangier case study, highlight the importance of considering these new criteria in characterizing and understanding the dynamic aspect of buildings vulnerability within the inundation zone.
Finally, we present the core and components of an easy-to-use revised version of the BTV model (BTV-2); and we discuss the possibility and advantage to adopt the BTV-2 model for a qualitative assessment of building tsunami vulnerability in the NE Atlantic coasts.
This work is funded by TRIDEC (Collaborative, Complex and Critical Decision-Support in Evolving Crises) FP7, EU project; and by the Tagus Delta – PTDC/MAR/113888/2009, research project funded by FCT, Portugal. |
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