南沙群岛海区冬夏季中、深层海流的计算  

A COMPUTATION ON INTERMEDIATE AND DEEP LEVELS SEA CURRENTS IN NANSHA ISLANDS AREA IN WINTER AND SUMMER

作　　者：黄企洲[1] 王文质[1] 傅孙成[1] 

机构地区：[1]中国科学院南海海洋研究所

出　　处：《热带海洋》1994年第2期33-40,共8页

摘　　要：根据１９８８年夏季和１９８９年冬季南沙群岛海区两个航次的温、盐度调查资料，运用β螺旋方法对调查海区的海流进行了计算。计算结果表明，该海区表、中层环流相对比较一致，深层流动状态与表、中层的差异较大，其中的局地环流的季节变化不明显。此外，在北康暗沙与南薇滩之间，夏季中、深层和冬季深层都明显反映出存在着一个迄今未见报道的局地反气旋式环流。文章对上述结果与该海区已有的一些海流分析结果作了比较。ccording to the observated data of temperature and salinity in the summer of 1988and winter of 1989, the sea currents of the obseryed area were-calculated by using the βspiral method. The results show that the sea currents of surface and intermediate levelsin the observed area are relatively consistent, and clearly different for deep currents, inwhich the local circulations have not apparent seasonal variation. Furthermore, in thearea between Beikang Ansha and Nanwei Tan, both current fields of intermediate anddeep in summer and the Current field of deep level in winter show a local anticyclonic circulation which was unknown up to date. The above mentioned results were comparedwith some known results in the observed area.

关 键 词：南沙群岛 海区 海流 β螺旋法 

分 类 号：P731.21[天文地球—海洋科学]