Significant and Maximum Waves under Typhoons with Different Traveling Speed

Abstract

Characteristics of significant and maximum waves under strong wind of typhoons are analyzed numerically by applying the wave model SWAN and the maximum-wave estimation proposed by Mori et al. The traveling speed of typhoons is changed in the numerical simulations and its influence to the significant and the maximum waves is investigated. The largest wave height occurs when the typhoon's traveling speed is a little smaller than the group velocity of the corresponding significant waves. The directional and frequency concentrations in the wave spectrum are also inclease with the speed,and it causes of the largest maximum-waves.