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| Titel |
Swell freak wave manifestation on the background weak wind wave field |
| VerfasserIn |
E. Shurgalina, E. Pelinovsky |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250058405
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| Zusammenfassung |
| Interference of unidirectional swell and wind waves in deep water in frameworks of linear potential theory is considered. Wind waves are described by Pierson – Moskowitz spectrum, and swell – by the frequency-modulated wave packet. It is noticed that in case of a variable wind in a storm area the swell waves can be focused on some distance from the origin area, forming abnormal big waves ("freak waves"). A visibility of the freak wave swell of different shapes in wind wave field is examined. The swell and wind waves are good selected in spatial-temporal diagrams due to difference in the speeds of propagation. The life-time of freak waves is estimated. |
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