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Volume :22 Issue : 2 1995
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Distribution of Wave Steepness
Auther : H. ASKAR*, J. M. LO**, R. HAMADEH* AND M. A. TAYFUN*
* Department of Civil Engineering, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait;
* Kuwait Institute for Scientific Research (KISR), P.O. Box 24885, Safat 13109, Kuwait
ABSTRACT
Available theoretical expressions describing the statistical distribution of wave steepness do not compare favorably with empirical data. The observed histograms of wave steepness tend to fit the log-normal probability law. The practical utility of this result in engineering design requires that the mean and root-mean-square values of wave steepness be predicted accurately. Herein, theoretical approximations describing these two key statistics are derived, and the resulting log normal distribution is compared with observational data, obtaining good agreement.