中文摘要：

在中间的深度的南部的半球副热带的 supergyre 连接所有三海洋盆并且在在全球海洋回答并且传送 climate-change-related 变化起一个重要作用。根据简单海洋数据吸收(苏打) 海洋分析， thermohaline 可变性和中间深度的 supergyre 的向南方的移动被表明。位的高度相对从苏打的 1 500 m (4001 500 m ) 表面下确切描绘流动模式和海洋的 supergyre 的可变性。在 19582007 期间，在旋回内部的水群众变得更凉爽 / 新鲜，与 Agulhas 当前的系统和 Agulhas 漏的重要例外。结果也展出 supergyre ，和最强壮的向南方的移动的内部盆的连接的显著加强，吗在大约 2.5 ???????????????????????????????????？？

英文摘要：

The Southern Hemisphere subtropical supergyre at intermediate depths connects all three ocean basins and plays a significant role in responding and conveying the climate-change-related variations in the glob- al ocean. On the basis of the Simple Ocean Data Assimilation/SODA） ocean reanalysis, the thermohaline variability and southward shift of the mid-depth supergyre are demonstrated. The steric height of the sub- surface relative to 1 500 m （400-1 500 m） from the SODA depicts exactly the flow patterns and variability of the oceanic supergyre. During 1958-2007 the water masses in the gyre interiors become cooler/fresher, with the significant exceptions of the Agulhas Current system and Agulhas leakage. The results also exhibit a pronounced strengthening of the inter-basin connection of the supergyre, and the strongest southward shift, by about 2.5° over the whole period, occurs in the central-south Pacific, which is associated with the changes in the basin-scale wind forcing.