南海台风参数模型和台风浪后报模型的应用研究

Application study of parametric typhoon wind models and typhoon wave hindcast models in South China Sea

台风风场和台风浪数值后报能够有效弥补现场观测资料的不足,对南海海域的海洋经济健康发展具有重要的保障作用.针对不同台风参数模型和全谱海浪模型的联合应用,编制了包括5个台风参数模型的数值模拟程序,以南海海域的台风Ellen(1983)和Dujuan(2003)作为案例,并联合应用2个第3代全谱海浪模型,完成了台风风场、气压场和台风浪场的数值后报.通过分析不同台风参数模型和全谱海浪模型组合应用的后报结果,并与实测数据进行对比,得出了Jelesnianski风场参数模型结合第3代全谱海浪模型WW3比较适用于南海海域台风浪后报.

Numerical hindcast of typhoon wind fields and waves could effectively provide the supplementary informa- tion of the measured data. It is critical to ensure the healthy development of ocean economy in South China Sea. The application of different parametric typhoon wind models combined with fully spectrum wave models was studied. Numerical simulation codes of five parametric wind models and two third generation fully spectrum wave models were developed and applied to hindcast the wind velocity, air pressure and wave fields of two South China Sea ty- phoons, Ellen （1983） and Dujuan （2003）. Results of five parametric typhoon wind models combined with two fully spectrum wave models were analysised. The comparison between hindcast results and measured data validates the effectiveness and applicability of Jelesnianski wind model plus WW3 wave model in South China Sea.