海陵湾台风浪场的数值模拟  

Numerical simulation of typhoon wave field in Hailing Bay

作　　者：魏晓宇[1] 冯伟忠[2] 陈强[1] 尹姗姗[1] 许婷婷[1] 

机构地区：[1]国家海洋局珠海海洋环境临测中心站,广东珠海519015 [2]国家海洋局南海预报中心,广东广州513000

出　　处：《应用海洋学学报》2015年第4期468-475,共8页Journal of Applied Oceanography

基　　金：国家海洋局南海分局局长科技基金资助项目(1351)

摘　　要：选取2004~2014年登陆和影响海陵湾附近海域四种典型路径的代表台风作为研究对象,运用SWAN41.01版本,通过大区粗网格、小区细网格两重嵌套的方法对台风影响过程所产生的台风浪进行较高分辨率的模拟研究,结合海陵湾不同位置的地形特征及台风中心与海陵湾的相对位置分析台风浪分布特征.分别利用附近海域大万山、闸坡和硇洲海洋站海浪观测值与模拟结果进行检验.模拟结果表明：模式计算结果与实测结果吻合性较好.台风中心位于海陵湾邻近海域的不同位置,台风强度及生命历程的不同,所引起的台风浪有效波高极值及持续时间都有着较大的差异,而不同的路径的台风引起的台风浪场分布也呈现出明显不同的特征.本研究可以为整个海陵湾邻近海域台风浪分布特征的了解与认识提供较好的参考.Typhoons of 4 typical path landing or affecting Hailing Bay during 2004 - 2014 are selected in this study. The typhoon wave is simulated by the method of double nested of SWAN 41.01, combined the large coarse grid with small fine grid. The distribution of typhoon wave field is studied based on the paths of typhoon, the topograph- ic features at different positions and the position of typhoon center relative to the bay. Used observed data from Dawanshan, Zhapo and Naozhou stations the simulation result is tested. It shows that the simulation results is proved well by comparison with the observed data. The differences of the wave field inside and outside Hailing Bay is significant. The peak value and duration of significant wave height is different when typhoon center is located at different position near Hailing Bay or the intensity or life course is different. And the typhoon wave field distribution caused by different path is also different. The simulation can provide a good reference to understand the distribution of typhoon wave field near Hailing Bay.

关 键 词：物理海洋学 台风浪场 SWAN模式 数值模拟 海陵湾 

分 类 号：P731[天文地球—海洋科学]