应用WAVEWATCH-Ⅲ模式对南海的波浪场进行数值计算、统计分析和研究  

Simulation and study of wave in South China Sea using WAVEWATCH-Ⅲ

作　　者：周良明[1] 吴伦宇[1] 郭佩芳[1] 王爱方[2] 

机构地区：[1]中国海洋大学物理海洋实验室,山东青岛266100 [2]中国海洋大学工程勘察设计开发院,山东青岛266003

出　　处：《热带海洋学报》2007年第5期1-8,共8页Journal of Tropical Oceanography

摘　　要：以30a再分析风场数据为输入,采用WAVEWATCH-Ⅲ波浪模式,对南海海域1976—2005年的波浪场进行了数值计算。与大量的T/P高度计波浪资料和部分台风资料进行对比验证后发现,波浪计算结果较好。将计算结果进行统计和推算,得出南海海域波浪如下的主要特征:1)南海海域的常浪向基本为NE,出现频率占各向总数的40%;北部海域的强浪向主要为E,中部和南部海域的强浪向主要为NE;2)夏季的波高为全年最小,冬季受东北季风的影响,波高达到全年最大;3)100a一遇极值波高分布:海南岛东南附近海域最大,有效波高最大超过18m,中部海域的有效波高平均为14m左右,南部海域的有效波高平均约为9m。The wave of the South China Sea from 1976 to 2005 is simulated using WAVEWATCH-Ⅲ based on 30-year wind field data, and the simulation result is good compared with T/P altimeter data and some typhoon data. By calculation and analysis of the results, some characteristics of the wave in the South China Sea are summarized as below. 1） The main wave direction is NE, with a frequency of 40% 2） The strongest wave is in E direction in the northern sea area, and in NE in the middle and southern sea areas 3） During the whole year, the wave height is the smallest in spring, and is the largest in winter due to the influence of NE monsoon 4） For 100a-return-period extreme wave height, the sea area southeast of the Hainan Island （18°-20°N, 112°-114°E） has the largest, with the height of significant wave greater than 18m, the central area is the second, with the mean height of significant wave about 14m, and the southern area has a mean height of significant wave about 9m.

关 键 词：南海 再分析风场 WAVEWATCH—Ⅲ 热带气旋 波浪 

分 类 号：P731[天文地球—海洋科学]