| 高度计资料监测日本以南黑潮主轴特性的变化 |
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| 引用本文： | 王海龙,郭佩芳,钱成春,韩树宗. 高度计资料监测日本以南黑潮主轴特性的变化[J]. 热带海洋学报, 2003, 22(4): 84-92 |
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| 作者姓名： | 王海龙 郭佩芳 钱成春 韩树宗 |
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| 作者单位： | 1. 中国科学院南海海洋研究所热带海洋环境动力学重点实验室,广东,广州,510301
2. 中国海洋大学海洋环境学院海洋系,山东,青岛,266003 |
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| 基金项目： | 国家自然科学基金(40136010)，中国科学院知识创新工程项目(KZCX2-205)，国家863项目(2002AA639150) |
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| 摘 要： | 应用1993年至2001年TOPEX／Poseidon(以下简写为T／P)卫星高度计3条下行轨道的沿轨资料，计算分析了日本以南黑潮主轴的摆动特性，发现在1993年和2000—2001年010轨道上有2次空间尺度较大、持续时间较长的弯曲。黑潮处于平直路径时流速比较大；呈稳定弯曲状态时流速与多年平均值相差不大；而黑潮在两种稳态之间转换时，伴随着流速负距平的出现。
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| 关 键 词： | 黑潮弯曲路径 大地水准面 TOPEX／Poseidon 海表面动力高度 |
| 文章编号： | 1009-5470(2003)04-0084-09 |
| 修稿时间： | 2002-10-09 |
KUROSHIO MEANDER SOUTH OF JAPAN DETECTED BY ALTIMETER |
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| WANG Hai-long,GUO Pei-fang,QIAN Cheng-chun,HAN Shu-zoog LED,South China Sea Institute of Oceanology,The Chinese Academy of Sciences,Guangzhou ,China College of Phy. and Envir Dyn.,Ocean Univ.of China,Qingdao ,China. KUROSHIO MEANDER SOUTH OF JAPAN DETECTED BY ALTIMETER[J]. Journal of Tropical Oceanography, 2003, 22(4): 84-92 |
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| Authors: | WANG Hai-long GUO Pei-fang QIAN Cheng-chun HAN Shu-zoog LED South China Sea Institute of Oceanology The Chinese Academy of Sciences Guangzhou China College of Phy. Envir Dyn. Ocean Univ.of China Qingdao China |
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| Affiliation: | WANG Hai-long,GUO Pei-fang,QIAN Cheng-chun,HAN Shu-zoog LED,South China Sea Institute of Oceanology,The Chinese Academy of Sciences,Guangzhou 510301,China College of Phy. and Envir Dyn.,Ocean Univ.of China,Qingdao 266003,China |
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| Abstract: | Kuroshio axis fluctuation was detected and researched along three T/P de-scending ground tracks by using sea surface dynamic topography (SSDT) data from 1993to 2001. FFT was used to smooth SSDT profile to minimize the error from uncertaintyof Geoid. NOAA/AVHRR satellite images overlapped with geostrophic flow vectorswere selected to verify the Kuroshio Meander during the period. Two large meanderswere founded during 1993 and 2000--2001, and both of them formed V-like path southof Japan and lasted for several months. When Kuroshio axis maintained straight, its ax-is geostrophic flow velocity appeared to be positively anomalous compared with yearlymean one; when it showed stable curving, its geostrophic flow velocity was almost e-qual to the yearly mean one ; and when Kuroshio path fluctuated between two steadypaths, its strength weakened greatly. |
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| Keywords: | Kuroshio meander Geoid TOPEX/Poseidon sea surface dynamic topography |
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