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This article is cited in 3 scientific papers (total in 3 papers)
The assessment of tsunami heights above the parabolic bottom relief within the wave-ray approach
An. G. Marchuk Institute of Computational Mathematics and Mathematical Geophysics SB RAS, pr. Acad. Lavrentieva, 6, Novosibirsk, 630090, Russia
Abstract:
In this paper, the kinematics of the tsunami wave ray and the wavefront above an uneven bottom is studied. The formula to determine the wave height along a ray tube has been obtained. The exact analytical solution for the wave-ray trajectory above the parabolic bottom topography has been derived. Within the wave-ray approach this solution gives the possibility to determine the tsunami wave heights in an area with a parabolic bottom relief. The distribution of the wave-height maxima in the area with the parabolic bottom was compared to the one obtained by the numerical computation with a shallow-water model.
Key words:
tsunami propagation, shallow-water equations, wave ray, wavefront kinematics.
Received: 30.05.2016 Revised: 02.09.2016
Citation:
An. G. Marchuk, “The assessment of tsunami heights above the parabolic bottom relief within the wave-ray approach”, Sib. Zh. Vychisl. Mat., 20:1 (2017), 23–35; Num. Anal. Appl., 10:1 (2017), 17–27
Linking options:
https://www.mathnet.ru/eng/sjvm633 https://www.mathnet.ru/eng/sjvm/v20/i1/p23
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