The Roles of Different Mechanisms Related to the Tide-induced Fronts in the Yellow Sea in Summer

查看全文 作　　者：REN [1,2]Shihe;XIE [1]Jiping;ZHU [3]Jiang

机构地区：[1]International Center for Climate and Environment Sciences, Institute of Atmospheric Physics,Chinese Academy of Sciences;[2]University of Chinese Academy of Sciences;[3]Institute of Atmospheric Physics, Chinese Academy of Sciences

出　　处：《Advances in Atmospheric Sciences》索引2014年第31卷第5期,共11页

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No.XDA01020304);the National Basic Research Program of China (Grant No.2010CB951901);the National Natural Science Foundation of China (Grant No.41276027) 摘　　要：In summer, the Yellow Sea Cold Water Mass(YSCWM) is a stable water mass of low temperature lying at the bottom of the central Yellow Sea(YS). It is fringed by some typical tidal fronts, which separate deep, stratified water on the offshore side from the well-mixed, shallow water on the inshore side. Three striking fronts—Subei Bank Front(SBF), Shandong Peninsula Front(SPF), and Mokpo Front(MKF; a front off the southwestern tip of the Korean Peninsula)—have been identified by various studies from both satellite observations and model results. Tide plays an important role in the formation and maintenance of these fronts. However, it is still a matter of debate as to the roles these two kinds of mechanisms of upwelling and tidal mixing play, and how importance they are in the maintenance processes of the above three fronts. Basing a nested high-resolution model HYCOM(the Hybrid Coordinate Ocean Model), this study focuses on the different mechanisms of tidal effects on the thermal fronts in the YS in summertime. Through comparative experiments with and without tidal forcing,the results indicate that the MKF is mainly driven by tide-induced upwelling. For the SPF, tidal mixing is the dominant factor,when lower cold water is stirred upwards along the sloping topography of the western YS. Meanwhile, the combined effect of upwelling and tidal mixing is the main cause of the formation of the SBF. Diagnostic analysis of thermal balance shows that horizontal nonlinear advection induced by strong tidal currents also contributes to the thermal balance of frontal areas. 关键词：黄海冷水团潮汐作用夏季机制作用相混合坐标高分辨率模式水体温度

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The Roles of Different Mechanisms Related to the Tide-induced Fronts in the Yellow Sea in Summer

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耦合文献(165)

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