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| Titel |
Shallow freak event modeling in Taiwanese waters |
| VerfasserIn |
D.-J. Doong, T. Talipova, 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 |
250059353
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| Zusammenfassung |
| Data of freak waves recorded by buoys (sensor: gyrometer, sampling rate: 2Hz, measurement duration: 10min) in Taiwanese shallow waters are presented. Four events are discussed: 1) January 20, 2010, Abnormality index Ai = 2.56, Hualien buoy, depth 30 m, distance to the shore 1 km; 2) November 11, 2010, Abnormality index 2.53, Eluanbi Buoy, depth 40 m, distance to the shore 3 km; 3) August 9, 2009, Abnormality index 2.23, Hsinchu Buoy, depth 26 m, distance to the shore 2.5 km; and 4) May 4, 2009, Abnormality index 2.26, Longdong Buoy, depth 30 m, distance to the shore 1 km. All freak waves have sign-variable shape. The modeling of the freak waves is performed in the framework of the variable-coefficient Korteweg – de Vries equation taken into account the variability of the water depth in both, onshore and offshore directions. Results of numerical simulations are used to estimate the life-time of freak waves. |
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