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| Titel |
Near-coast tsunami waveguiding: phenomenon and simulations |
| VerfasserIn |
E. Groesen, D. Adytia, A. Andonowati |
| 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 ; 8, no. 2 ; Nr. 8, no. 2 (2008-03-03), S.175-185 |
| Datensatznummer |
250005400
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| Publikation (Nr.) |
 copernicus.org/nhess-8-175-2008.pdf |
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| Zusammenfassung |
| In this paper we show that shallow, elongated parts in a sloping bottom
toward the coast will act as a waveguide and lead to large enhanced wave
amplification for tsunami waves. Since this is even the case for narrow
shallow regions, near-coast tsunami waveguiding may contribute to an
explanation that tsunami heights and coastal effects as observed in reality
show such high variability along the coastline. For accurate simulations, the
complicated flow near the waveguide has to be resolved accurately, and grids
that are too coarse will greatly underestimate the effects. We will present
some results of extensive simulations using shallow water and a linear
dispersive Variational Boussinesq model. |
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