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The role of Equatorial Undercurrent in sustaining the Eastern Indian Ocean upwelling
Chen, Gengxin1,2; Han, Weiqing2; Shu, Yeqiang1; Li, Yuanlong2; Wang, Dongxiao1; Xie, Qiang1,3
2016-06-28
Source PublicationGEOPHYSICAL RESEARCH LETTERS
Volume43Issue:12Pages:6444-6451
AbstractBy combining volume transport and salinity analysis from 1958 to 2014, this paper investigates how the transient Equatorial Undercurrent (EUC) sustains the summer-fall equatorial eastern Indian Ocean (EIO) upwelling. On seasonal time scales, the EIO upwelling is mainly supplied by the salty water from the western basin through a buffering process: The winter-spring EUC carries the salty water from the western basin eastward, induces downwelling in the EIO, and pushes portion of the salty water below the central thermocline, which subsequently upwells to the central thermocline during summer-fall and sustains the EIO upwelling. On interannual time scales, enhanced upwelling occurs during positive Indian Ocean Dipole (+IOD) years. The strong summer-fall EUC associated with the +IOD supplies water for the intensified upwelling. This research provides new knowledge for basin-scale mass and property exchanges associated with the EIO upwelling, contributing to our understanding of three-dimensional ocean circulation and climate variability.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/2016GL069433
Indexed BySCI
Language英语
WOS KeywordINTRASEASONAL VARIABILITY ; INTERANNUAL VARIABILITY ; ZONAL CURRENTS ; INDO-PACIFIC ; DIPOLE EVENTS ; DYNAMICS ; THERMOCLINE ; THROUGHFLOW ; TRANSPORTS ; FREQUENCY
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000380910100064
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/1604
Collection深海科学研究部_海洋环流观测与数值模拟研究室
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA
3.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
Recommended Citation
GB/T 7714
Chen, Gengxin,Han, Weiqing,Shu, Yeqiang,et al. The role of Equatorial Undercurrent in sustaining the Eastern Indian Ocean upwelling[J]. GEOPHYSICAL RESEARCH LETTERS,2016,43(12):6444-6451.
APA Chen, Gengxin,Han, Weiqing,Shu, Yeqiang,Li, Yuanlong,Wang, Dongxiao,&Xie, Qiang.(2016).The role of Equatorial Undercurrent in sustaining the Eastern Indian Ocean upwelling.GEOPHYSICAL RESEARCH LETTERS,43(12),6444-6451.
MLA Chen, Gengxin,et al."The role of Equatorial Undercurrent in sustaining the Eastern Indian Ocean upwelling".GEOPHYSICAL RESEARCH LETTERS 43.12(2016):6444-6451.
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