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| Titel |
The scenario of a single freak wave appearance in deep water – dispersive focusing mechanism framework |
| VerfasserIn |
E. Pelinovsky, E. Shurgalina, N. Chaikovskaya |
| 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 ; 11, no. 1 ; Nr. 11, no. 1 (2011-01-11), S.127-134 |
| Datensatznummer |
250009042
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| Publikation (Nr.) |
 copernicus.org/nhess-11-127-2011.pdf |
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| Zusammenfassung |
| One of the possible mechanisms of the emergence of freak waves in
deep water, based on the dispersive focusing of unidirectional wave
packets is analysed. This mechanism is associated with the frequency
dispersion of water waves and manifested in the interference of many
spectral components, moving with different velocities. Formation of
a single freak wave in a random wind wave field is considered in the
frame of linear theory. The characteristic lifetime of an abnormal
wave in the framework of this mechanism for typical conditions is
approximately two minutes, thus, a rapid effect is difficult to
predict and prepare for. A rogue wave quickly changes its shape from
a high ridge to a deep depression. |
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