Model study of the upper circulation in the Sulu Sea and its relation to the South China Sea circulation

作     者：CAI Shuqun HE Yinghui LONG Xiaomin WANG Shengan 

作者机构：Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sci-ences Guangzhou 510301 China Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sci-ences Guangzhou 510301 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sci-ences Guangzhou 510301 China Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sci-ences Guangzhou 510301 China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2008年第27卷第z1期

页      面：119-128页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：National Basic Research Program2007 CB 816003 National Special Project2006 BAB19B01 Grant 40376003 from Chinese National Science Foundation China 908-Project under Grant 908-02-01-03 

主　　题：circulation monsoon numerical model Sulu Sea South China Sea 

摘      要：According to the satellite remote sensing monthly mean sea surface temperature data from 1998 to 2002, it is shown that, the Sulu Sea is dominated by a cold eddy both in summer and winter. A coupled single-layer/two-layer model is employed here to study the summery and wintry characteristics and dynamic mechanism of the upper circulation in the Sulu Sea. According to the numerical experiments, it is found that, due to the local monsoon stress curl, the upper circulation in the Sulu Sea is dominated by a weak anticyclonic eddy in summer and a strong cyclonic eddy in winter. Once there is a large outflow via the Sibutu Passage flowing out of the Sulu Sea in summer, the upper circulation in the Sulu Sea may be dominated by a cyclonic eddy instead of the normal anticyclonic one. Moreover, in summer, the water exchange between the Sulu Sea and South China Sea via the Mindoro and Balabac Straits might have some effect on the separation position and strength of the northward western boundary current next to the Indo-China Peninsula in the southern South China Sea.