DOI: 10.1002/2016GL069433
论文题名: The role of Equatorial Undercurrent in sustaining the Eastern Indian Ocean upwelling
作者: Chen G. ; Han W. ; Shu Y. ; Li Y. ; Wang D. ; Xie Q.
刊名: Geophysical Research Letters
ISSN: 0094-9727
EISSN: 1944-9458
出版年: 2016
卷: 43, 期: 12 起始页码: 6444
结束页码: 6451
语种: 英语
英文关键词: Eastern Indian Ocean
; Equatorial Undercurrent
; upwelling
Scopus关键词: Stream flow
; Climate variability
; Equatorial undercurrents
; Indian ocean
; Indian Ocean dipole
; Interannual time scale
; Ocean circulation
; Salinity analysis
; Upwelling
; Oceanography
; climate change
; Indian Ocean Dipole
; seasonality
; thermocline
; timescale
; undercurrent
; upwelling
; volume transport
; Indian Ocean
; Indian Ocean (East)
英文摘要: By 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. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977493194&doi=10.1002%2f2016GL069433&partnerID=40&md5=dd8d1cd682a2337be531aded015d3a03
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10690
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
Recommended Citation:
Chen G.,Han W.,Shu Y.,et al. The role of Equatorial Undercurrent in sustaining the Eastern Indian Ocean upwelling[J]. Geophysical Research Letters,2016-01-01,43(12).