Analysis of Energy Overshoot of High Frequency Waves with Wavelet Transform

A study is made on the overshool phenomena in wind-generated waves. The surface displacements of time-growing waves are measured at four fetches in a wind wave channel. The evolution of high frequency waves is displayed with wavelet transform. The results are compared with Sutherland's. It is found that high frequency wave components experience much stronger energy overshool in the evolution. The energy of high frequency waves decreases greatly after overshool.