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| Titel |
Tsunami Waveguiding Simulation Above Synthetic and Realistic Bathymetries |
| VerfasserIn |
D. Adytia, W. Kristina, E. Van Groesen |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250019722
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| Zusammenfassung |
| In this contribution we show that relatively narrow and shallow elongated areas in the
propagation direction of a tsunami wave can produce largely amplified waves by the
phenomenon that we call near-coast tsunami waveguiding (see [1]). This phenomenon may
contribute to an explanation that tsunami wave heights and coastal effects show high
variability along the coastline. To show this phenomenon, we use the recently derived
Variational Boussinesq Model (VBM) as a dispersive wave model. This model is
implemented numerically by using Finite Element Method (FEM) and used to simulate a
tsunami that will show to posses the tsunami waveguiding property. We will compare
simulations with the linear VBM and the nonlinear VBM, for synthetic data and for a real
case in the Indonesian coastal area.
[1] Van Groesen, E. , Adytia, D. and Andonowati. Near-coast tsunami waveguiding:
phenomenon and simulations. Natural Hazards and Earth System Sciences, 8, 175-185. 2008. |
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