辽东湾西部海域潮流特征  

STUDY OF TIDAL CURRENT CHARACTERISTICS IN THE WESTERN LIAODONG BAY

作　　者：刘京鹏[1,2] 吴建政[1] 李军[2] 赵京涛[2] 王利波[2] 张伟[1] 

机构地区：[1]中国海洋大学,青岛266100 [2]中国地质调查局青岛海洋地质研究所,青岛266071

出　　处：《海洋地质前沿》2015年第11期10-17,共8页Marine Geology Frontiers

基　　金：辽东湾近海砂及相关资源潜力调查(1212011088110)

摘　　要：根据2009年9月在辽东湾获取的3个站位的25h连续定点海流观测资料进行准调和分析,计算了3个站位6个主要分潮O_1、K_1、M_2、S_2、M_4、MS_4的北、东分量潮流调和常数,并给出了各测站在各层的潮流椭圆要素。计算结果表明：该海区潮流属于正规半日潮流性质,主要呈NE—SW向往复式运动,最大可能流速介于70~120cm/s之间,流速总体上由表至底逐渐减小。对于O_1、K_1、M_2、S_2这4个主要分潮流,北分量基本上大于东分量,底层普遍较表层先转流,最大流速发生时间亦是底层较表层提前,浅水分潮在总海流中占的份额都很小。Using the quasi-harmonic method,we anchored at the three stations in the Liaodong Bay for25 hours in September,2009 for study of the tidal current characteristics.The harmonic coefficients of the O_1,K_1,M_2,S_2,M_4,MS_4 tidal current constituents are calculated for their north and east components.The tidal current elliptic factors are also computed.It demonstrates that the tidal current in the study area is a regular semidiurnal tidal current mainly in NE—SW reciprocating movement.The maximum possible flow rate is between 70cm/s and 120cm/s.In general,the velocity decreases gradually from surface to bottom.The north component of O_1,K_1,M_2,S_2,is generally stronger than the east one.The bottom tidal current generally flows earlier than the surface tidal current.The maximum velocity is also earlier at the bottom than that in the surface.The ratio of shallow water tidal current constituent to total current is very low.

关 键 词：辽东湾 潮流 准调和分析 椭圆要素 

分 类 号：P736.23[天文地球—海洋地质]