The Tsunami Model Eliciting Activity: Implementation And Assessment Of An Interdisciplinary Activity In A Pre Engineering Course

In numerical computations of tsunamis due to submarine earthquakes, it is frequently assumed that the initial displacement of the water surface is equal to the permanent shift of the seabed and that the initial velocity field is equal to zero and the shallow-water equations are often used to simulate the propagation of tsunamis. We give a mathematically rigorous justification of this tsunami model starting from the full water-wave problem by comparing the solution of the full problem with that of the tsunami model. We also show that, in some cases, we have to impose a non-zero initial velocity field, which arises as a nonlinear effect.

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A tsunami model of Kelvin wave type

Marine Geodesy ◽

10.1080/15210608909379636 ◽

1989 ◽

Vol 13 (4) ◽

pp. 341-345 ◽

Cited By ~ 3

Author(s):

Shigehisa Nakamura

Keyword(s):

Kelvin Wave ◽

Wave Type ◽

Tsunami Model

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The Hilo Harbor Tsunami Model

Coastal Engineering 1966 ◽

10.1061/9780872620087.070 ◽

1967 ◽

Author(s):

Robert Q. Palmer ◽

Gerald T. Funasaki

Keyword(s):

Tsunami Model

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Numerical Simulation of Morphological Changes due to the 2004 Tsunami Wave around Banda Aceh, Indonesia

Geosciences ◽

10.3390/geosciences9030125 ◽

2019 ◽

Vol 9 (3) ◽

pp. 125 ◽

Cited By ~ 3

Author(s):

Teuku Rasyif ◽

Shigeru Kato ◽

Syamsidik ◽

Takumi Okabe

Keyword(s):

Sediment Transport ◽

Morphological Changes ◽

Coupled Model ◽

Indian Ocean Tsunami ◽

Hydrodynamic Process ◽

Tsunami Waves ◽

The North ◽

Tsunami Model ◽

2004 Tsunami ◽

Banda Aceh

The 2004 Indian Ocean tsunami caused massive morphological changes around the coast of Sumatra, Indonesia. This research investigates the coastal morphological changes in the Banda Aceh area via coupling a hydrodynamic model with a sediment transport module. The Cornell Multigrid Coupled Tsunami Model (COMCOT) was coupled with the XBeach Model to simultaneously simulate sediment transport and the hydrodynamic process during the tsunami. The coupled model is known as COMCOT-SED. Field bathymetric data measured in 2006 were used to validate the coupled model. This study reveals that the tsunami’s impact was more severe on the eastern part of the coast, where it hit directly. Meanwhile, the western part of the coast suffered a lower impact because of the sheltering effects from a series of small islands and a headland to the north. This study has shown that the model results from COMCOT-SED are consistent with field data and show where the tsunami waves caused offshore erosion.

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