Maximum Wave Height Distribution in a Sea State: Effects of Record Length and Spectral Peakedness

[+] Author and Article Information
Germán Rodríguez

Departamento de Física, Univ. de Las Palmas de G. C., 35017 Las Palmas, Spaingrodriguez@dfis.ulpgc.es

Mercedes Pacheco

Departamento de Física, Univ. de Las Palmas de G. C., 35017 Las Palmas, Spainmpacheco@dfis.ulpgc.es

C. Guedes Soares1

Unit of Marine Technology and Engineering, Technical University of Lisbon, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugalguedess@mar.ist.utl.pt


Corresponding author.

J. Offshore Mech. Arct. Eng 127(4), 340-344 (Apr 13, 2005) (5 pages) doi:10.1115/1.2073113 History: Received July 16, 2004; Revised April 13, 2005

The probability distribution of the maximum wave height in a sea state is examined in terms of the spectral peakedness and the sea state duration. The study is based on the analysis of numerically simulated Gaussian wave records with given target spectra to fulfill the long duration and stationarity jointly required conditions, seldom found in nature. Results indicate a clear dependence of the probability distribution structure and location on the record length and the spectral shape.

Copyright © 2005 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Fit of empirical results to Eq. 2 for γ=1, 3.3, and 7, as a function of N

Grahic Jump Location
Figure 2

Fit of empirical results to Eq. 2 for N=10, 100, and 500, as a function of γ

Grahic Jump Location
Figure 3

Variation of the slope in Eq. 2 as a function of N and γ

Grahic Jump Location
Figure 4

Variation of the mean, standard deviation, and modal values as a function of N and γ



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