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Titel |
New tsunami damage functions developed in the framework of SCHEMA project: application to European-Mediterranean coasts |
VerfasserIn |
N. Valencia, A. Gardi, A. Gauraz, F. Leone, R. Guillande |
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 ; 11, no. 10 ; Nr. 11, no. 10 (2011-10-25), S.2835-2846 |
Datensatznummer |
250009737
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Publikation (Nr.) |
copernicus.org/nhess-11-2835-2011.pdf |
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Zusammenfassung |
In the framework of the European SCenarios
for tsunami Hazard-induced Emergencies MAnagement (SCHEMA) project (www.schemaproject.org),
we empirically developed new tsunami damage
functions to be used for quantifying the potential tsunami damage to
buildings along European-Mediterranean coasts.
Since no sufficient post-tsunami observations exist in the Mediterranean
areas, we based our work on data collected by several authors in Banda Aceh
(Indonesia) after the 2004 Indian Ocean tsunami. Obviously, special
attention has been paid in focusing on Indonesian buildings which present
similarities (in structure, construction material, number of storeys) with
the building typologies typical of the European-Mediterranean areas.
An important part of the work consisted in analyzing, merging, and
interpolating the post-disaster observations published by three independent
teams in order to obtain the spatial distribution of flow depths necessary
to link the flow-depth hazard parameter to the damage level observed on
buildings. Then we developed fragility curves (showing the cumulative
probability to have, for each flow depth, a damage level equal-to or
greater-than a given threshold) and damage curves (giving the expected
damage level) for different classes of buildings. It appears that damage
curves based on the weighted mean damage level and the maximum flow depth
are the most appropriate for producing, under GIS, expected damage maps for
different tsunami scenarios. |
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