PROBABILITY DISTRIBUTION OF WAVE HEIGHT IN FINITE WATER DEPTH

Michel K. Ochi

Abstract


This paper presents probability density functions applicable to peaks, troughs and peak-to-trough excursions of coastal waves with finite water depth in closed form. It is found that for a non- Gaussian waves for which the skewness of the distribution is less than 1.2, the probability density function of peaks (and troughs) can be approximately represented by the Rayleigh distribution with a parameter which is a function of three parameters representing the non-Gaussian waves. The agreement between the probability density functions and the histograms constructed from data obtained by the Coastal Engineering Research Center is satisfactory.

Keywords


wave height; finite depth; probability distribution

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DOI: http://dx.doi.org/10.9753/icce.v26.%25p