渤、黄、东海M_2和K_1分潮潮流场的有限元模拟  

Tidal Current Simulation for M_2 and K_1 with the Finite Element Method in the Bohai Sea,the Yellow Sea and the East China Sea

作　　者：李磊[1] 杜凌[1] 左军成[1] 李培良[1] 

机构地区：[1]中国海洋大学物理海洋实验室,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2006年第6期851-858,874,共9页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(40506006;40376005);教育部新世纪优秀人才支持计划项目(NCET-04-0646)资助

摘　　要：使用有限元模式(QUODDY)数值模拟了渤、黄、东海浅水区的M2和K1分潮潮流场。对于M2分潮潮流场,东分量和北分量的潮流调和常数与16个测站观测资料的平均绝对误差分别为8.23 cm/s,23.74°();7.36 cm/s,27.78(°)。对于K1分潮潮流场,则分别为8.39 cm/s,36.48(°);9.40 cm/s,38.04(°)。文中得到的M2分潮流在模拟海区共有9个圆流点(秦皇岛附近1个,莱州湾口1个,山东半岛北部海域2个,黄海北部2个,苏北辐射沙洲的外侧1个,舟山群岛东南海域2个)。K1分潮流在模拟海域也存在9个圆流点(秦皇岛附近1个,莱州湾口1个,北黄海2个,南黄海1个,苏北辐射沙洲的外侧1个,济州岛东南海域3个),其中黄海北部偏北的圆流点(39°25′N,123°05′E)和济州岛东南海域最东南的圆流点(32°50′N,127°50′E)以前未见过报道。A finite element model （QUODDY） is used to simulate the tidal current system of M2 and K1 constituents in the Bohai Sea, the Yellow Sea and the East China Sea. Compared with the current data from 16 observation stations, the mean absolute errors are 8.23 cm, 23.74°and 7.36 cm, 27.78° for the harmonic constants of the northward and eastward current component of M2, respectively, and 8.39 cm, 36.48°and 9.40 cm, 38.04° for Kt respectively. There are 9 current amphidromic points of M2 in the area： one near the Qinhuang Island, one at the mouth of Laizhou Bay, two off the northern coast of the Shandong peninsula, two in the northern part of the Yellow Sea, one beyond the sandbank to the northern part of Jiangsu Province and two in the southeast of the Zhoushan Islands. There are 9 current amphidromic points of K1 in the area too： one near the Qinhuang Island, one at the mouth of Laizhou Bay, two in the northern part of the Yellow Sea, one beyond the sandbank to the northern part of Jiangsu Province and three in the southeast of the Jizhou Island. Among these, the current amphidromic point （39°25＇N, 123°05＇E） in the northern part of the Yellow Sea and the point（32°50＇N, 127°50＇E） in the southeast of the Jizhou Island have never been reported.

关 键 词：有限元方法 潮流场 渤黄东海 圆流点 

分 类 号：P731.2[天文地球—海洋科学]