中文摘要：

到 2003 年 12 月的从 1993 年 1 月的 11 年的卫星高度表海表面高度(SSH ) 异例数据被用来通过实验直角的功能(文件结束) 分析介绍主导的空间模式和华南海(SCS ) 表面发行量的时间的变化。开始的三个文件结束模式在 SCS 显示出 SSH 的明显的季节的变化。文件结束模式一被盆宽的发行量通常描绘。模式二描述双房间盆规模发行量结构。二个房间分别地被定位离开吕宋岛岛和越南的东南的西方。文件结束模式三在西方的 SCS 介绍 mesoscale 旋涡结构，它从 7 月很快发展成一个强壮的气旋的旋涡到 9 月。文件结束模式一和模式三也与 interannual 信号被嵌入，显示 SCS 表面发行量变化被 El Ni 影响 ? o 事件显著地。强壮的 El Ni ? 1997/98 的 o 显然改变了 SCS 发行量结构。这研究也证明那在那里存在一系列 mesoscale 在西方的 SCS 回旋，并且他们的时间的变化显示 intra 季节并且 interannual 信号。

英文摘要：

11-year satellite altimeter sea surface height （SSH） anomaly data from January 1993 to December 2003 are used to present the dominant spatial patterns and temporal variations of the South China Sea （SCS） surface circulation through Empirical Orthogonal Function （EOF） analysis. The first three EOF modes show the obvious seasonal variations of SSH in the SCS. EOF mode one is generally characterized by a basin-wide circulation. Mode two describes the double-cell basin scale circulation structure. The two cells were located off west of the Luzon Island and southeast of Vietnam, respectively. EOF mode three presents the mesoscale eddy structure in the western SCS, which develops into a strong cyclonic eddy rapidly from July to September. EOF mode one and mode three are also embedded with interannual signals, indicating that the SCS surface circulation variation is influenced by El Nino events prominently. The strong El Nino of 1997/98 obviously changed the SCS circulation structure. This study also shows that there existed a series of mesoscale eddies in the western SCS, and their temporal variation indicates intra-seasonal and interannual signals.