 |
| Titel |
Assessing tsunami vulnerability, an example from Herakleio, Crete |
| VerfasserIn |
M. Papathoma, D. Dominey-Howes, Y. Zong, D. Smith |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 3, no. 5 ; Nr. 3, no. 5, S.377-389 |
| Datensatznummer |
250001236
|
| Publikation (Nr.) |
 copernicus.org/nhess-3-377-2003.pdf |
|
|
|
|
|
| Zusammenfassung |
| Recent tsunami have caused massive loss
of life, destruction of coastal infrastructures and disruption to economic
activity. To date, tsunami hazard studies have concentrated on determining
the frequency and magnitude of events and in the production of simplistic
flood maps. In general, such maps appear to have assumed a uniform
vulnerability of population, infrastructure and business. In reality
however, a complex set of factors interact to produce a pattern of
vulnerability that varies spatially and temporally. A new vulnerability
assessment approach is described, that incorporates multiple factors (e.g.
parameters relating to the natural and built environments and
socio-demographics) that contribute to tsunami vulnerability. The new
methodology is applied on a coastal segment in Greece and, in particular,
in Crete, westof the city of Herakleio. The results are presented within a
Geographic Information System (GIS). The application of GIS ensures the
approach is novel for tsunami studies, since it permits interrogation of
the primary database by several different end-users. For example, the GIS
may be used: (1) to determine immediate post-tsunami disaster response
needs by the emergency services; (2) to preplan tsunami mitigation
measures by disaster planners; (3) as a tool for local planning by the
municipal authorities or; (4) as a basis for catastrophe modelling by
insurance companies. We show that population density varies markedly with
the time of the year and that 30% of buildings within the inundation zone
are only single story thus increasing the vulnerability of their
occupants. Within the high inundation depth zone, 11% of buildings are
identified as in need of reinforcement and this figure rises to 50% within
the medium inundation depth zone. 10% of businesses are located within the
high inundation depth zone and these may need to consider their level of
insurance cover to protect against primary building damage, contents loss
and business interruption losses. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|