东印度洋深层环流和水团变异研究进展*
*本研究的数据及样品采集得到国家自然科学基金共享航次计划项目(项目批准号: 42249910、42149910)的资助, 该航次(航次编号NORC2023-10+NORC2023-303和NORC2022-10+NORC2022-303)由中国科学院南海海洋研究所“实验6”号科考船实施, 在此一并致谢。感谢美国国家海洋和大气管理局提供的WOA23 (World Ocean Atlas 2023)数据支撑, 感谢绘制地形图所使用的GMT软件(Wessel et al,
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梁湛林(1992—), 男, 助理研究员, 从事东印度洋深层环流研究。email: liangzl@scsio.ac.cn |
Editor: 孙翠慈
收稿日期: 2025-01-28
修回日期: 2025-03-03
网络出版日期: 2025-03-25
基金资助
中国科学院海外科教合作中心部署项目(133244KYSB20200024)
国家重点研发计划项目(2022YFE0203500)
广东省科技计划项目(2022B1212050003)
中国科学院国际伙伴计划项目(059GJHZ2023104MI)
中国科学院南海海洋研究所自主部署项目(SCSIO202201)
中国科学院南海海洋研究所自主部署项目(SCSIO2023HC07)
国家自然科学基金共享航次计划项目(42249910)
国家自然科学基金共享航次计划项目(42149910)
Research progress on the characteristics of deep-sea circulation and water masses in the deep Eastern Indian Ocean*
Editor: SUN Cuici
Received date: 2025-01-28
Revised date: 2025-03-03
Online published: 2025-03-25
Supported by
Project Deployment for the Overseas Science and Education Cooperation Center of the Chinese Academy of Sciences(133244KYSB20200024)
National Key Research and Development Program of China(2022YFE0203500)
Science and Technology Planning Project of Guangdong Province, China(2022B1212050003)
International Partnership Program of Chinese Academy of Sciences(059GJHZ2023104MI)
Development Fund of South China Sea Institute of Oceanology of the Chinese Academy of Sciences(SCSIO202201)
Development Fund of South China Sea Institute of Oceanology of the Chinese Academy of Sciences(SCSIO2023HC07)
Shiptime Sharing Project of National Natural Science Foundation of China (NSFC)(42249910)
Shiptime Sharing Project of National Natural Science Foundation of China (NSFC)(42149910)
梁湛林 , 王卫强 . 东印度洋深层环流和水团变异研究进展*[J]. 热带海洋学报, 2026 , 45(1) : 17 -26 . DOI: 10.11978/2025034
The deep water of the Eastern Indian Ocean is a crucial component of the global deep-sea system, playing a significant role in the global carbon cycle and the distribution of heat and nutrients. It is divided by the Ninety East Ridge into the Central Indian Basin (CIB) and the West Australian Basin (WAB). These two basins exhibit distinct differences in their water mass characteristics and circulation patterns. To further understand the deep-sea circulation and water mass features in the Eastern Indian Ocean, this paper reviews existing research findings and summarizes the following aspects: 1) the unique topography of the deep Eastern Indian Ocean; 2) the sources and pathways of deep-sea water masses; 3) the deep meridional overturning circulation; and 4) the differences and connections between the deep-sea water masses in the CIB and the WAB. Finally, this paper highlights key scientific issues that need to be addressed in future research on the deep sea of the Eastern Indian Ocean, providing a reference for related studies.
Key words: Eastern Indian Ocean; deep sea; circulation; water masses
图3 海盆平均后位势温度(a)、盐度(b)、溶解氧浓度(c)和硅酸盐浓度(d)的垂向变化。红线代表中印度洋海盆(CIB), 蓝线代表西澳大利亚海盆(WAB)Fig. 3 Vertical variations of basin-averaged WOA23 temperature (a), salinity (b), dissolved oxygen (c), and silicate concentrations (d) over Central Indian Basin (red line) and West Australian Basin (blue line) |
图4 90°E海岭地形以及其缺口示意图Fig. 4 Bathymetric features of the Ninety East Ridge and its saddles |
图5 10°S缺口的“深海瀑布”驱动中印度洋海盆底层环流示意图(引自Warren, 1982)东部边界上的源S提供强迫。带箭头的细线表示内部流动的流线。粗线表示北部、南部和西部边界的海水流线, 箭头表示流动方向。流线束表示的从源点向西流动的纬向喷流。左侧表示西部边界流的体积输运随纬度的变化(正值表示向北流动), 单位为源S的强度 Fig. 5 Schematic pattern of horizontal circulation in a rectangular basin (representing the CIB) driven by upwelling at the top of the layer, as forced by a source S on the eastern boundary (Warren, 1982). Light lines with arrowheads denote streamlines of the interior flow. Heavy lines indicate the northern-, southern-, and western-boundary currents, with adjacent arrows showing flow direction. The bundle of streamlines represents the zonal jet flowing westward from the source. The left side shows the volume transport of the western-boundary current varying with latitude (positive values indicate northward flow), measured in units of source-strength S |
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