南印度洋中国中山站至澳大利亚费里曼特尔断面海洋锋位置及其年际变化

高郭平; 韩树宗; 董兆乾; 杨士瑛

南印度洋中国中山站至澳大利亚费里曼特尔断面海洋锋位置及其年际变化

1.
中国海洋大学, 海洋学系, 山东, 青岛, 266003;国家海洋局第一海洋研究所, 山东, 青岛, 266061
2.
中国海洋大学, 海洋学系, 山东, 青岛, 266003
3.
中国极地研究所, 上海, 200129
4.
国家海洋局, 第二海洋研究所, 浙江, 杭州, 310012

基金项目: 国家自然科学基金资助项目(40006002);中央级科研院所社会公益研究专项资金资助项目(2001DIA50040)

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出版历程
- 收稿日期: 2002-10-23
- 修回日期: 2003-06-30

Structure and variability of fronts in the South Indian Ocean along sections from Zhongshan Station to Fremantle

1.
Department of Oceanography, Ocean University of China, Qingdao 266003, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2.
Department of Oceanography, Ocean University of China, Qingdao 266003, China
3.
Polar Institute of China, Shanghai, 200129 China
4.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 根据中国第18次南极科学考察队2002年1～3月在南印度洋从中山站外普里兹湾到澳大利亚费里曼特尔断面的走航XBT/XCTD资料和CTD资料及1998年1月、1999年2月和2000年3月等其他航次的调查资料,分析了该航线上海洋锋的位置及其年际变化:(1)在75°～78°E南极陆坡锋的位置在645°～655°S;在84°～100°E范围极地锋在535°～543°S附近;在96°～103°E亚南极锋在46°S～470°S附近;在110°E附近亚热带锋在372～380°S之间;(2)在南极极锋区存在显著等温线、等盐线的上凸和下凹,不同年份发生位置有变化;(3)在亚南极锋北侧,等温线、等盐线呈垂直排列的状态,温度、盐度垂直方向上分布均匀一致;(4)与1979,1991和1992年该区域同期的资料相比,近4a观测到的极地锋显著偏南1个纬距以上.
- 南印度洋 /
- 南极陆坡锋 /
- 极地锋 /
- 亚南极锋 /
- 亚热带锋 /
- 中国南极科学考察
Abstract: Structure and variability of the fronts along the sections from Zhongshan Station to Fremantle, Australia in the South Indian Ocean are analyzed with XBT/XCTD data and CTD data obtained by CHINARE in 1998, 1999, 2000 and 2002.(1) The Antarctic Slope Front at 75°~78°E is bordered between 64.5° and 65.5°S, the Polar Front at 84°~100°E varies closed to 53.5°~54.3°S, the Subtropical Front at 96°~103°E varies between 46°~47.0°S, the Subtropical Front at 110°E is located on 37.2~38.0°S; (2) in the Polar Front Zone, the isolines fluctuate strongly in temperature and salinity sections and are effected possibly by eddies; (3) north to the Subantarctic Front, the distribution of temperature salinity is homogenous in vertical direction; (4) the Polar Front retreats about one degree southward in latitude in recent four years, compared with that in 1979, 1991 and 1992 in the same area and season.
- the South Indian Ocean /
- CWB /
- PF /
- SAF /
- STF /
- CHINARE

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参考文献(24)

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