Capillary Rogue Waves
Date
2010
Authors
Shats, Michael
Punzmann, Horst
Xia, Hua
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Publisher
American Physical Society
Abstract
We report the first observation of extreme wave events (rogue waves) in parametrically driven capillary waves. Rogue waves are observed above a certain threshold in forcing. Above this threshold, frequency spectra broaden and develop exponential tails. For the first time we present evidence of strong four-wave coupling in nonlinear waves (high tricoherence), which points to modulation instability as the main mechanism in rogue waves. The generation of rogue waves is identified as the onset of a distinct tail in the probability density function of the wave heights. Their probability is higher than expected from the measured wave background.
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Keywords
Keywords: Capillary wave; Exponential tail; Extreme wave events; Frequency spectra; Modulation instabilities; Nonlinear waves; Rogue waves; Wave coupling; Wave heights; Spectroscopy; Probability density function
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Source
Physical Review Letters
Type
Journal article
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Restricted until
2037-12-31
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