中文摘要：

在西方的华南海(SCS ) 的一个复发春天 mesoscale 旋涡用遥感数据被学习并且在 situ 观察历史。特征首先出现在是的 2 月的中央越南海岸的东方一个高海平面的异例，由三月很快成长到一个开发得好的逆旋风的旋涡，在 5 月在 4 月，和腐烂成熟。除温暖核心的特征以外，它也有一个固有的低咸度的性质，因此它被称为春天 mesoscale 高度(SMH ) 。不过与清楚的 interannual 变化以紧张和空间范围， SMH 总是出现在在 110 之间的区域

英文摘要：

A recurring spring mesoscale eddy in the western South China Sea （SCS） is studied using remote sensing data and historical in situ observations. The feature first appears east of the central Vietnam coast in Febru- ary as a high sea-level anomaly, grows rapidly to a well-developed anticyclonic eddy by March, matures in April, and decays in May. Besides the warm-core feature, it also has an inherent low-salinity property, so it is named ＂spring mesoscale high （SMH）＂. Though with clear interannual variation in terms of intensity and spatial coverage, the SMH always emerges in the region between ll0~E and l14~E and between 12~N and 16~N. The formation of SMH is ascribed to the combined effects of wind forcing and releasing of po- tential energy set up by winter monsoon. In particular, the wind-stress curl plays an important role in its development, maintenance, and dissipation.