Rogue waves, non-Gaussian statistics and proximity to homoclinic data

被引：0
|
作者：
Schober, Constance M. [1 ]
机构：
[1] Univ Cent Florida, Dept Math, Orlando, FL 32816 USA
来源：
FLUIDS AND WAVES: RECENT TRENDS IN APPLIED ANALYSIS | 2007年 / 440卷
关键词：
nonlinear Schrodinger equation; inverse spectral theory; rogue waves; non-Gaussian statistics;
D O I：
暂无
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper we provide a statistical interpretation of rogue wave data obtained from numerical simulations of the NLS equation and of the modified Dysthe equation. The sea states investigated are characterized by JONSWAP spectra with random phases. To test for non-Gaussianity we examine the kurtosis as a function of 5, the proximity to homoclinic or unstable data. Our numerical results indicate that the wave strength and the kurtosis depend strongly on the proximity to instabilities. The modulational instability is a significant source of non-Gaussianity in the water wave statistics.
引用
收藏
页码：207 / 222
页数：16
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