Wind generated waves

In order to complement the results of the radar backscatter measurements on the open sea, laboratory measurements of the wave amplitude and slope and of the radar backscatter at X- and Ka-band were carried out in a wind-wave tank with mechanically generated gravity waves as well as with wind-generated waves on a slick-free and a slick-covered water surface. In this paper, we concentrate on the results of the radar measurements with wind-generated waves. For a full description of the obtained results the reader is referred to Gade et al. (1998c). 

The X- and Ka-band Doppler shifts measured from wind-generated waves on a water surface covered with oleyl alcohol (OLA) are shown in Figure 8. It is obvious that the coverage of the water surface with a sur-... 

Donelan MA and Pierson WJ (1987) Radar scattering and equilibrium ranges in wind-generated waves with application to scatterometry. J Geophys Res 92 ... 

Summer winds tend to be gentle and come from the south, except dm-ing major storms (t5 hoons). Resuspension by wind-generated waves is infrequent. 

WIND GENERATED WAVES THE EXTREME OF J, 1, 367 CONCLUSION, 370 NOMENCLATURE, 371 REFERENCES, 372... 

It is further of interest to note that in the particular case of thin laminar liquid layers in channel flow, the liquid layer thickness (as appears in Fr, Equation 27), can be obtained explicitly by solving the steady-state two-fluid momentum equations. In this case, the transitional criterion for wind generated waves, > 1 reduces to a critical superficial gas phase Reynolds number, Re > 1.113 x 10 [103]. 

Hydrodynamics Tides, tidal exchange, wind generated waves, wave climate, long waves such as tsunamis and storm surge. 

Battjes, J.A., Computation of Set-up, Long Shore Currents, Run-up and Overtopping due to Wind-generated Waves, Communications on Hydraulics No. 74-2, Department of Civil Engineering, Delft University of Technology, Delft, The Netherlands, 1974... 

Longuet-Higgins, M.S., On Wave Breaking and the Equilibrium Spectrum of Wind-generated Waves, Proc. Roy. Soc. London, 1969, A 310, 151-159... 

Mitsuyatsu, H. 1968. On the growth of the spectrum of wind generated waves. Rep. Res. Inst. Appl. Mech., Kyushu Univ., 16(55), 459. 

Resuspension in rivers is driven by high bottom shear velocity associated with hydrological events that lead to high flow rates. Resuspension in estuaries is most often driven by tidally induced velocities, so that periodic resuspension and deposition cycles occur as a function of tidal cycles. Resuspension in coastal and nearshore systems is most often driven by wind-generated wave action. 

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