On the Tsunami model of the origin of multi-ring basins

1990 ◽  
Vol 49 (3) ◽  
pp. 253-258 ◽  
Author(s):  
Yue Zeng-yuan ◽  
Zhang Bin ◽  
Chen Dao-Han
Keyword(s):  
Tsunami Model

A mathematical analysis of tsunami generation in shallow water due to seabed deformation

2011 ◽  
Vol 141 (3) ◽  
pp. 551-608 ◽  
Author(s):  
Tatsuo Iguchi
Keyword(s):  
Velocity Field ◽  
Shallow Water ◽  
Water Wave ◽  
Initial Velocity ◽  
Tsunami Generation ◽  
Wave Problem ◽  
Initial Displacement ◽  
Water Wave Problem ◽  
Submarine Earthquakes ◽  
Tsunami Model

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.

A tsunami model of Kelvin wave type

1989 ◽  
Vol 13 (4) ◽  
pp. 341-345 ◽  
Author(s):  
Shigehisa Nakamura
Keyword(s):  
Kelvin Wave ◽  
Wave Type ◽  
Tsunami Model

The Hilo Harbor Tsunami Model

1967 ◽  
Author(s):  
Robert Q. Palmer ◽  
Gerald T. Funasaki
Keyword(s):  
Tsunami Model

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

Geosciences ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 125 ◽  
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.

An Efficient and Robust Tsunami Model on Unstructured Grids. Part I: Inundation Benchmarks

2008 ◽  
Vol 165 (11-12) ◽  
pp. 2229-2248 ◽  
Author(s):  
Yinglong J. Zhang ◽  
António M. Baptista
Keyword(s):  
Unstructured Grids ◽  
Tsunami Model

scholarly journals Analysis of the tsunami amplification effect by resonance in Yeongil Bay

2021 ◽  
Vol 8 (4) ◽  
pp. 315-322
Author(s):  
Eunju Lee ◽  
Sungwon Shin
Keyword(s):  
Numerical Modeling ◽  
South Korea ◽  
East Coast ◽  
Tsunami Wave ◽  
Tide Gauge ◽  
Warning System ◽  
Tsunami Source ◽  
Tsunami Forecast ◽  
Tsunami Wave Height ◽  
Tsunami Model

Predicting tsunami hazards based on the tsunami source, propagation, runup patterns is critical to protect humans and property. Potential tsunami zone, as well as the historical tsunamis in 1983 and 1993, can be a threat to the east coast of South Korea. The Korea Meteorological Administration established a tsunami forecast warning system to reduce damage from tsunamis, but it does not consider tsunami amplification in the bay due to resonance. In this study, the Numerical model, Cornell Multi-grid Coupled Tsunami model, was used to investigate natural frequency in the bay due to coastal geometry. The study area is Yeongill bay in Pohang, southeast of South Korea, because this area is a natural bay and includes three harbors where resonance significantly occurs. This study generated a Gaussian-shaped tsunami, propagated it into the Yeongill bay, and compared numerical modeling results with data from tide gauge located in Yeongill bay during several storms through spectral analysis. It was found that both energies of tsunamis and storms were amplified at the same frequencies, and maximum tsunami wave height was amplified about 3.12 times. The results in this study can contribute to quantifying the amplification of tsunami heights in the bay.

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