南黄海西部夏季流的观测与分析  

Observation and analysis of current on the western part of the southern Yellow Sea in summer

作　　者：张志欣[1] 于非[1] 郭景松[1] 刁新源[1] 刘建军[1] 郭炳火[1] 

机构地区：[1]国家海洋局第一海洋研究所

出　　处：《水动力学研究与进展（A辑）》2008年第4期404-411,共8页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金资助项目(40776019);国家专项:我国近海物理海洋与海洋气象研究(908-ZC-I-01);973专项:海洋能量级联机制及过程(2005CB422302)

摘　　要：2006年夏季我们在南黄海西部布设并获得了1个月以上的5套ADCP锚系测流站的观测资料。本文依据所得资料分析研究了该海区的潮流分布特征,重点探讨了潮流的垂向结构,计算了潮流底Ekman层厚度。分析还表明:该海域存在较强的半日潮、近日潮、近惯性和半月频率的斜压流,其平均动能大值发生在跃层及其附近的水层中;而平均涡动动能大值出现在跃层下界以浅,最大值则在跃层上界附近。Five designed moorings were deployed and recovered on the western part of the southern Yellow Sea in 2006＇s summer which stayed more than one month. In this study, the distributed features of the tidal current are analyzed based on the moorings＇ data. Meanwhile, the vertical structure of the tidal current is explored emphatically. The thickness of the Ekman layer was also calculated. Analysis shows that the depth-dependent current contains multiple frequencies, mainly being the semidiurnal tidal current, quasi-diurnal fide, quasi-inertia and semilunar. The maximum mean kinetic energy of the depth-dependent current appears near the therrnocline layer, and the mean eddy kinetic energy＇s values are higher in the upper of the thermocline layer＇s lower boundary with the maximum value occurring at each site near the thermocline layer＇s upper boundary.

关 键 词：南黄海西部 潮流 斜压流 

分 类 号：P722.5[天文地球—海洋科学] P731.2