大气-海浪耦合模式对台风“碧利斯”的数值模拟  

Numerical simulation of typhoon Bilis by using a coupled atmosphere-ocean wave model

作　　者：丁亚梅 董克慧 周林[2] 王鑫[3] 

机构地区：[1]东海舰队司令部海洋水文气象中心,浙江宁波315122 [2]解放军理工大学气象学院,江苏南京211101 [3]96169部队气象台,广东梅州514783

出　　处：《海洋预报》2009年第2期15-26,共12页Marine Forecasts

摘　　要：本文将海表粗糙度作为耦合大气、海浪模式的重要因子,实现中尺度大气模式MM5(V3)和第三代海浪模式WAVEWATCHⅢ的双向耦合,建立充分考虑大气、海浪相互作用的大气-海浪耦合模式。将该大气-海浪耦合模式应用于对0604次台风"碧利斯"的数值模拟,在耦合模式中引入Smith92海表粗糙度参数化方案,探讨其对台风和台风浪的影响。研究结果表明,大气-海浪耦合模式能够抓住台风过程的总体特征。Smith92海表粗糙度参数化方案对台风路径影响不大。但在台风系统强度的模拟上影响明显,采用Smith92方案使得台风系统强度显著增强,对台风系统强度的模拟有明显改善。同样,大气-海浪耦合模式能够很好的模拟台风过程中海浪的传播和演变。采用Smith92方案使得海面有效波高明显增高,对海面有效波高的模拟有一定程度改善。因此,在大气-海浪耦合模式中恰当的选择海表粗糙度参数化对改进大气-海浪耦合模式的模拟效果是很有意义的。The mesoscale atmosphere model MM5（V3） and the third-generation ocean wave model WAVEWATCH Ⅲ are coupled with each other in a two-way coupling manner data. The coupled model is used to simulate typhoon Bilis, using NCEP reanalysis data as initial field. A parameterization schemes of sea surface roughness, Smith92, is introduced to the coupled model; and it＇s influence on the development and moving track of Bilis is discussed as well. The coupled model shows high applicability for numerical simulation of Typhoon. The sea surface roughness schemes has very little impact on the track of Typhoon. In terms of the simulation effect of Typhoon intensity, the result of Smith92 increases evidently. The simulated results of the distribution and development of ocean wave are satisfactory, as well. Referring to

关 键 词：大气-海浪耦合模式 台风 海表粗糙度 有效波高 

分 类 号：P732[天文地球—海洋科学]