Surface inflow into the South China Sea through the Luzon Strait in winter  

作　　者：GUO Jingsong CHEN Xianyao Janet SPRINTALL GUO Binghuo QIAO Fangli YUAN Yeli 郭景松;陈显尧;Janet SPRINTALL;郭炳火;乔方利;袁业立(Physical and Environmental Oceanography,Ocean University of China,Qingdao 266100,China;Laboratory of Marine Science and Numerical Modeling,The First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;Scripps Institution of Oceanography,UCSD,California,United States)

机构地区：[1]Physical and Environmental Oceanography,Ocean University of China,Qingdao 266100,China [2]Laboratory of Marine Science and Numerical Modeling,The First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China [3]Scripps Institution of Oceanography,UCSD,California,United States

出　　处：《Chinese Journal of Oceanology and Limnology》2012年第1期163-168,共6页中国海洋湖沼学报（英文版）

基　　金：Supported by the National Basic Research Program of China (973 Program) (Nos. 2007CB816002, 2005CB422303);the National Natural Science Foundation of China (Nos. 40776018, 41176029)

摘　　要：We studied the driving force of the Kuroshio intrusion into the South China Sea （SCS） during the winter monsoon, using satellite-tracked drifters entering the Luzon Strait （LS） through the Balintany and Babuyan Channels from the Philippine Sea. Most drifters passing through the Babuyan Channel in winter entered the interior SCS without a significant change in velocity. However, half of the drifters passing through the Balintany Channel entered the SCS at -30 cn/s, which was faster than when they entered the LS. The other half continued moving northwestward into the Kuroshio and returned to the North Pacific. Quantitative analyses, using surface climatological wind and sea surface height anomaly （SSHa） data explained both the difference in velocity of drifters between the two channels and their acceleration through the Balintany Channel. The results suggest that the positive meridional gradient of sea surface height in the Luzon Strait, caused by the pileup of seawater driven by the Northeast monsoon, as well as Ekman flow, contribute to the Kuroshio intrusion into the SCS through the Babuyan and Balintany Channels. The former may be the main driving force.我们在冬季季风期间学习了自台湾东面的菲律宾海流向日本的暖流侵入的驱动力进华南海(SCS ) ，用进入通过来自菲律宾的海的 Balintany 和 Babuyan 隧道的吕宋岛海峡(LS ) 的追踪卫星的流浪者。没有一个重要变化，在冬季通过 Babuyan 隧道的大多数流浪者在速度进入了内部 SCS。然而，通过 Balintany 隧道的流浪者的一半在 30 cm/s 进入了 SCS，它比他们什么时候进入 LS 快。另外的一半继续移动进自台湾东面的菲律宾海流向日本的暖流向西北、对北方太平洋回来。量的分析，使用的表面 climatological 风和海出现高度异例(SSHa ) 数据通过 Balintany 隧道在在二条隧道和他们的加速之间的流浪者的速度向两个解释了差别。结果建议海的积极南方的坡度出现在吕宋岛海峡的高度，由东北季风，以及 Ekman 流动驾驶的海水的连环相撞引起了，通过 Babuyan 和 Balintany 隧道贡献自台湾东面的菲律宾海流向日本的暖流侵入进 SCS。前者可以是主要驱动力。

关 键 词：Kuroshio intrusion South China Sea （SCS） monsoonal winds sea surface height 

分 类 号：P731.2[天文地球—海洋科学]