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An Analysis of Wave Data for Wave Grouping

1984; World Scientific; Volume: 27; Issue: 1 Linguagem: Inglês

10.1080/05785634.1984.11924379

0578-5634

Hajime MASE, Yuichi Iwagaki,

Tropical and Extratropical Cyclones Research

ABSTRACTThis paper has examined the change of wave grouping of storm waves during wave growth and decay by analyzing the field wave data observed off Gobo Coast in Wakayama Prefecture and at Lake Biwa in Shiga Prefecture (Japan) with some parameters to describe the magnitude of wave groups. For the mean lengths of runs and total runs of wave heights, the comparison of the observed results with the theoretical ones by Kimura (1980) has been done. Besides, the effect of shallow water on wave grouping has been discussed.The main results are as follows: (1) To describe the magnitude of wave groups, at least two parameters are needed; one is the magnitude of the sequence of high waves in a time series, and the other is the magnitude of the variation of wave energy or wave height around the mean value. (2) Concerning the wave data observed at Gobo, wave grouping was pronounced in the main stage of storms where three parameters of the correlation coefficient of successive wave heights, the mean length of runs an...