An improved wind input source term for third generation ocean wave modelling
Yan, L. (1987). An improved wind input source term for third generation ocean wave modelling. Wetenschappelijk rapport = Scientific report. Koninklijk Nederlands Meteorologisch Instituut, 87-8. KNMI: De Bilt. 20 pp.
Part of: Wetenschappelijk rapport = Scientific report. Koninklijk Nederlands Meteorologisch Instituut. Koninklijk Nederlands Meteorologisch Instituut (KNMI): De Bilt. ISSN 0169-1651, more
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| Abstract |
Measurements by Snyder et al in the Bight of Abaco have show that the growth rate of wind generated surface gravity waves can be approximated by a relationship, which, is valid for relatively low frequencies. A revised form of this expression, was proposed by Komen et al on the argument that friction velocity is a better scaling parameter considering the dependence of the drag coefficient Cd on wind speed. A different expression for SS was given by Plant. The effect of incorporating this formula in the WAM model is compared with the standard WAM model. It is found that the shifting of the spectral peak towards the low frequencies is somewhat slower and that the height of the peak has decreased somewhat. However, there is no strong influence on the energy gain by waves. |
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