收稿日期: 2002-09-30
修回日期: 2003-02-18
网络出版日期: 2004-02-01
基金资助
国家重点基础研究发展规划项目“南海季风环流及其变异机理”(编号：1999043805)；“南海环流及其变异预测数值模式”(编号：1999043810)；国家自然科学基金项目“P矢量方法在南海中的运用”（编号：40076009）；中国科学院大气科学和地球流体力学数值模拟国家重点实验室开放课题“太平洋涡度的输入及其对南海的影响”资助
ADVANCES IN THE STUDY OF DEDUCING OCEAN CIRCULATION FROM HYDROGRAPHIC DATA
Received date: 2002-09-30
Revised date: 2003-02-18
Online published: 2004-02-01
王桂华 , 李荣凤 . 利用水文资料推测海洋流场的研究进展[J]. 地球科学进展, 2004 , 19(1) : 100 -106 . DOI: 10.11867/j.issn.1001-8166.2004.01.0100
Some methods for deducing circulation from hydrographic data are reviewed. These methods could be classified into three types according to their different dynamics and their different applications as follows:①description methods, the major character is only to qualitatively describe the direction of ocean circulation.②diagnostic methods which combine thermal wind relation with tracer conservation, these methods could be used to quantitatively calculate the absolute ocean geostrophic currents. Some oceanographers began to consider the ageostrophic current component by these methods, and ③Sarkisyan' s diagnostic methods and the other complicated models. Taking winds, topographic effects into account, these methods quantitatively calculate the absolute currents, which include geostrophic and ageostrophic components. In this paper, we will discuss their progress together with the South China Sea circulation. We will also analyze their developmental trends in the study of deducing ocean circulation from hydrographic data. For studying the SCS circulation, these methods which deduce the ocean circulation from the hydrographic data play a very important role in recognizing the SCS ocean circulation while the differences of the results from these methods in calculating SCS ocean circulation need to be studied further.
Key words： Hydrographic data; Sea Current; The South China Sea circulation.
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