A Comparison of the Wave-Induced Momentum Flux to Breaking and Nonbreaking Waves
This chapter describes some initial laboratory measurements which compare the surface pressure distributions over broken and unbroken waves. The resulting normal stress wave-coherent momentum flux levels are found to be enhanced by an order of magnitude due to wave breaking. Estimates are obtained for the strength of this effect as a function of (u */c). The findings of Okuda et al. (1977) on the distribution of skin friction along wind-wave profiles are reviewed in the present context. The chapter concludes with the possible relevance of these findings to modulated shear stress in the explicably large microwave backscattering modulation levels observed by Wright et al. (1980).
KeywordsWind Stress Skin Friction Momentum Flux Wind Wave Breaking Wave
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- Cox, C. S. (1958): Measurements of slopes of high-frequency wind waves. J. Mar. Res. 16, 199–225.Google Scholar
- Cox, C. S., and W. H. Münk (1954a): Statistics of the sea surface derived from sun glitter. J. Mar. Res. 13, 198–227.Google Scholar
- Plant, W. J. (1981): A relationship between wind stress and wave slope. lUCRM Symposium on Wave Dynamics and Ratio Probing of the Ocean Surface, Miami, May 1981.Google Scholar