%0 Journal Article
%T Seasonal variations of upper ocean circulation over the South China Sea from satellite altimetry data of many years<br>利用多年卫星测高资料研究南海上层环流季节特征
%A BAO Li-Feng
%A LU Yang
%A WANG Yong
%A Hsu Hou_Ze
%A Institute of Geodesy
%A Geophysics
%A Chinese Academy of Sciences
%A Wuhan
%A China Graduate School of the Chinese Academy of Sciences
%A Beijing
%A China United Center for Astro-geodynamics Research
%A Chinese Academy of Sciences
%A Shanghai
%A China
%A <br>鲍李峰
%A 陆洋
%A 王勇
%A 许厚泽
%J 地球物理学报
%D 2005
%I 
%X We use high-precision gridded sea surface height anomaly data based on more than ten years multi-satellite altimetry observations, associated with EGM96 stationary sea surface topography model, to derive time-varying sea surface topography in the South China Sea (SCS), and calculate the upper level circulation fields at different times. Comparison between the derived result and the drifting buoy tracks from the world data center for drifting buoys suggests that the derived upper level circulation can reveal some meso-scale characteristics of circulations and eddies over SCS. Some analyses about the seasonal characteristics of circulations over SCS are made according to the mean seasonal upper level circulation field. The result shows that due to the various factors, the upper level circulation over SCS changes greatly in different seasons. The route of circulation and the shape, location and strength of eddies are always in a consecutive movement. As a whole, the seasonal variations of circulation over SCS are primary due to monsoon. In summer, the characteristic of circulation is quite opposite to that in winner. There are transitional characteristics which appear in spring and autumn.
%K Satellite altimetry
%K Upper level circulation
%K Sea surface topography
%K Geostrophic currents<br>卫星测高
%K 上层环流
%K 海面地形
%K 地转流
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=449EB6E1987B4A9B&yid=2DD7160C83D0ACED&vid=B6DA1AC076E37400&iid=38B194292C032A66&sid=BA305A52E2EE9350&eid=64808317C39DF331&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=6&reference_num=32