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, appearing abruptly at wave age co/Uw equal to 1.2. Turbulence spectra of the horizontal components were shown not to scale with height above the water surface, in contrast to vertical velocity spectra for which such a variation was observed in the low-frequency range. In addition, spectral peaks in the horizontal wind spectra were found at a frequency as low as 10 -3 Hz. From a comparison with results from a previous study it was concluded that this turbulence is of the "inactive" kind, being brought down from the upper parts of the boundary layer by pressure transport.