A.: 1972, Microscale Pressure Fluctuations Near Waves Being Generated by the Wind, J. 1, 399–410.ĭunckel, M., Hasse, L., Krügemeijer, L., Schriever, D., and Wucknitz, J.: 1974, Turbulent Fluxes of Momentum, Heat and Water Vapor in the Atmospheric Surface Layer at Sea During ATEX, Boundary-Layer Meteorol., this issue p. W.: 1971b, The Damping of a Group of Sea Waves, Boundary-Layer Meteorol. W.: 1971a, Measurements of Atmospheric Pressure on Wind-Generated Sea Waves, J. E.: 1970, On the Turbulent Flow over a Wavy Boundary, J. E.: 1969, On the High Reynolds Number Flow over a Wavy Boundary, J. H.: 1967, Numerical Prediction of Wave Spectra over the North Atlantic, Deutsche Hydrog. 14, Inst, für Radiometeorologie, Hamburg, 1970.)ĭarbyshire, J. Gordon (ed.), The Hydrodynamic Roughness of the Sea Surface, Studies in Physical Oceanography, Gordon and Breach, New York, 75–92. C.: 1967, On the Generation of Wind Waves as Inferred from Airborne Radar Measurements of Fetch-Limited Spectra, J. P.: 1968, On the Generation, Dissipation and Prediction of Ocean Wind Waves, J. However, for more general wind conditions, this will not be the case and the wave spectrum should be included in an accurate parameterisation of the air-sea momentum transfer.īarnett, T. For fetchlimited and fully developed spectra in a stationary, uniform wind field, the drag coefficient remains approximately constant. According to the model, nearly all the momentum transferred across the air-sea interface enters the wave field. The proposed set of source functions may nevertheless be useful for numerical wave-prediction. However, closure of the energy balance involves hypotheses regarding the structure of the atmospheric input function which need to be tested by further measurements. The proposed white-capping dissipation function is consistent with the structure of the energy balance derived from JONSWAP, and the existence of a δ −5 spectrum governed by a non-local energy balance between the atmospheric input, the nonlinear energy transfer and dissipation.
#The ocean waves free
The remaining free factor is determined indirectly from consideration of the spectral energy balance. In the case of white capping, the damping coefficient is then shown to be proportional to the square of the frequency, provided the wave scales are large compared with the white-cap dimensions. It is shown first that the source function for any non-expansible interaction process which is weak-in-the-mean is quasi-linear. The effect of white capping on the spectral energy balance of surface waves is investigated by expressing the white-cap interactions in terms of an equivalent ensemble of random pressure pulses.
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