ON THE ENERGY INPUT FROM WIND TO SURFACE-WAVES

A basic model relating the energy dissipation in the ocean mixed layer to the energy input into the surface wave field is combined with rece nt measurements of turbulent kinetic energy dissipation to determine t he average phase speed of the waves acquiring energy from the wind. Th is phase speed and the square root of the corresponding wavelength are proportional to the vertically integrated dissipation. The calculatio ns show that the maximum energy input occurs at the high-frequency end of the wave spectrum. Dissipation data from other investigators are u sed to estimate the effective phase speed between 0.55 and 0.72 m s(-1 ) and corresponding wavelengths varying between 0.2 and 0.33 m for the waves receiving most of the energy.