| 非线性共轭梯度法在东海黑潮流计算中的应用 |
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| 引用本文： | 陈红霞,袁业立,刘娜,曲媛媛.非线性共轭梯度法在东海黑潮流计算中的应用[J].海洋学报,2003,25(6):31-38. |
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| 作者姓名： | 陈红霞 袁业立 刘娜 曲媛媛 |
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| 作者单位： | 海洋环境与数值模拟国家海洋局重点实验室, 山东, 青岛, 266061;国家海洋局, 第一海洋研究所, 山东, 青岛, 266061 |
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| 基金项目： | 国家重点基础研究发展规划资助项目(G1999043802). |
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| 摘 要： | 基于现有的几种海流计算方法,根据与P矢量法相同的动力特性和内在假设,对海流计算提出了一种简单、高效、易扩展、适用范围广的新方法:非线性共轭梯度法.利用1989年4月以来的"中日黑潮合作调查研究"6个航次的CTD资料,对东海黑潮流区域应用非线性共轭梯度法进行了海流计算.通过与船载ADCP实测结果比较表明,非线性共轭梯度法是可行的.
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| 关 键 词： | 非线性共轭梯度法 东海黑潮流区域 方法应用 |
| 文章编号： | 0253-4193(2003)06-0031-08 |
| 收稿时间： | 9/5/2002 12:00:00 AM |
| 修稿时间： | 2002年9月5日 |
Application of nonlinear conjugate gradient method in geostrophic velocity calculation of Kuroshio in the East China Sea |
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| CHEN Hong-xi,YUAN Ye-li,Liu Na and QU Yuan-yuan.Application of nonlinear conjugate gradient method in geostrophic velocity calculation of Kuroshio in the East China Sea[J].Acta Oceanologica Sinica (in Chinese),2003,25(6):31-38. |
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| Authors: | CHEN Hong-xi YUAN Ye-li Liu Na and QU Yuan-yuan |
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| Institution: | Key Laboratory of Marine Science and Numerical Modeling of State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | Based on several methods of geostrophic velocity calculation, nonlinear conjugate gradient method is introduced. Sharing the same dynamical characteristics and inherent hypotheses with PV method, this approach is simple,effective,easy-expanded and wide-applicable. By using of this method, geostrophic velocity of Kuroshio in the East China Sea is studied using the CTD data of six cruises gained in the Sino-Japan joint investigation and the study on the Kuroshio since April 1989. Compared with observation data of shipbroad ADCP,the nonlinear conjugate gradient method has been proved feasible. |
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| Keywords: | nonlinear conjugate gradient method Kuroshio in the East China Sea method application |
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