| 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年10月9日 |
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 and Envir Dyn Ocean Univof China Qingdao China |
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| Institution: | 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 1993
to 2001. FFT was used to smooth SSDT profile to minimize the error from uncertainty
of Geoid. NOAA/AVHRR satellite images overlapped with geostrophic flow vectors
were selected to verify the Kuroshio Meander during the period. Two large meanders
were founded during 1993 and 2000--2001, and both of them formed V-like path south
of Japan and lasted for several months. When Kuroshio axis maintained straight, its ax-
is geostrophic flow velocity appeared to be positively anomalous compared with yearly
mean 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 steady
paths, its strength weakened greatly. |
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| Keywords: | Kuroshio meander Geoid TOPEX/Poseidon sea surface dynamic topography |
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