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Titel |
Nonlinear mechanism of tsunami wave generation by atmospheric disturbances |
VerfasserIn |
E. Pelinovsky, T. Talipova, A. Kurkin, C. Kharif |
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 ; 1, no. 4 ; Nr. 1, no. 4, S.243-250 |
Datensatznummer |
250000229
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Publikation (Nr.) |
copernicus.org/nhess-1-243-2001.pdf |
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Zusammenfassung |
The problem of
tsunami wave generation by variable meteo-conditions is discussed. The
simplified linear and nonlinear shallow water models are derived, and
their analytical solutions for a basin of constant depth are discussed.
The shallow-water model describes well the properties of the generated
tsunami waves for all regimes, except the resonance case. The
nonlinear-dispersive model based on the forced Korteweg-de Vries equation
is developed to describe the resonant mechanism of the tsunami wave
generation by the atmospheric disturbances moving with near-critical speed
(long wave speed). Some analytical solutions of the nonlinear dispersive
model are obtained. They illustrate the different regimes of soliton
generation and the focusing of frequency modulated wave packets. |
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