![]() The combination of u(sub *)(exp 2) and u(sub *)/Cp can be understood in physical terms. When combined in a two parameter regression, those two variables gave small standard deviation and had a high correlation coefficient (66 percent). Wave forcing as measured by wind stress (or friction velocity, u(sub *), squared) and by inverse wave age, u(sub *)/Cp where Cp is the phase velocity of the waves at the peak of the frequency spectrum, were found to be good prerictors of percentage of breaking crests. An equivalent percentage of breaking crests were found for spilling and plunging events. These events were correlated with the magnitude of the wave spectrum measured with a resistance wire wave gauge and band pass filtered between 6 and 10 Hz. Video recordings were employed to identify and categorize the breaking events in terms of micro-scale, spilling and plunging breakers. Incidence of wave breaking for pure wind driven waves has been studied on Lake Washington at wind speeds up to 8 m/s. Dependence of Wave-Breaking Statistics on Wind Stress and Wave Development ![]()
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