摘要
本文对近 4 0a来南海上升流研究结果进行了概述 ,重点介绍了南海北部陆架区上升流的时空分布特征 ,及其消长和形成机制等研究成果 .这些研究成果揭示上升流是整个南海北部陆架区夏季的普遍现象 ,具有南海海盆的空间尺度 .引起南海北部陆架区夏季上升流存在的动力因素是盛行的西南季风 .该上升流在空间和时间上的分布是不均一的 ,海南岛东北和闽、粤边界海域是上升流中心区 ;台湾浅滩周围的上升流呈多元结构 ,各上升流区海水的理化性质存在着明显差异 ;在粤东 ,上升流的影响可达沿海港湾内部 ,并支配着这些港湾的夏季水文条件 .南海除了在其北部陆架区存在着夏季上升流外 。
This paper summarizes the studies on upwelling system in the South China Sea in recent 40 years, especial introduce the results of temporal and spatial distribution and evolution of upwelling over the northern shelf of the SCS. These studies show that the upwelling is a common phenomenon in the area. And the upwelling scale is comparable to the scale of the SCS basin. Dynamical factor of causing upwelling in the area is strong southwest monsoon. It appears that the upwelling is not homogeneous either in space or in time. There are some upwelling centers in the northeast of the Hainan Island and the boundary area between Fujian and Guangdong .In the southern part of Taiwan Strait,the upwelling shows multi cell structure around the Taiwan Shoals. Each upwelling water mass has different physical and chemical characters. In the eastern Guangdong, the influence of upwelling may reach inner part of coastal bay and dominates hydrographic condition of these bays in summer. In the South China Sea, besides upwelling over the northern shelf in summer, there are a upwelling along the eastern coast of Vietnam in summer and a upwelling along the coast of Luzon in winter respectively.
出处
《台湾海峡》
CAS
CSCD
2003年第2期269-277,共9页
Journal of Oceanography In Taiwan Strait
基金
国家重点基础研究发展规划基金资助项目(G19990 4 380 7
G19990 4 380 5 )
