Ocean swell wave groups from wave record analysis.
Smith, Raymond C.
Thompson, Warren C.
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An investigation of the characteristics of wave groups occurring in five ocean swell trains was undertaken. To accomplish this, a definition of wave groups and their properties was developed. It was found that the average wave group period and the average maximum height in a group were essentially equal to the spectral period of maximum energy density and the significant height of a swell train, respectively. Additionally, the five swell trains investigated exhibited similar trends in the time variation of wave group characteristics such as the number of waves in a group, the duration of a group, and the percentage of time that the groups were present. Finally, wave group measures such as the wave group period, average maximum height of a group, and the wave period variability were shown to vary similarly with respect to wave group duration and the number of waves in a group.
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