DOI: 10.1002/2016GL069323
论文题名: Semiannually alternating exchange of intermediate waters east of the Philippines
作者: Wang F. ; Song L. ; Li Y. ; Liu C. ; Wang J. ; Lin P. ; Yang G. ; Zhao J. ; Diao X. ; Zhang D. ; Hu D.
刊名: Geophysical Research Letters
ISSN: 0094-8896
EISSN: 1944-8627
出版年: 2016
卷: 43, 期: 13 起始页码: 7059
结束页码: 7065
语种: 英语
英文关键词: semiannual variability
; subthermocline circulation
; water mass exchange
; western boundary currents
Scopus关键词: Oceanography
; Intermediate depths
; Intermediate waters
; Meridional flows
; Ocean general circulation models
; Semiannual variability
; Water mass
; Western boundary
; Western boundary currents
; Mooring
; correlation
; general circulation model
; intermediate water
; meridional circulation
; mooring system
; semiannual oscillation
; thermocline
; undercurrent
; water exchange
; water mass
; western boundary current
; Mindanao
; Pacific Ocean
; Pacific Ocean (North)
; Pacific Ocean (South)
; Pacific Ocean (Tropical)
; Philippines
英文摘要: Intermediate water exchange in the northwest tropical Pacific is explored with the temperature, salinity, and current measurements of a mooring system deployed at 8°N, 127.05°E during 2010–2014. For the first time, prominent semiannual variability (SAV; with the maximum power at ~ 187 days) of subthermocline meridional flow along the Mindanao coast is revealed. A significant correlation between meridional flow and salinity is found at intermediate depths. This provides direct evidence for the alternating transports of South Pacific and North Pacific Intermediate Waters by northward and southward undercurrents, respectively. Further analysis with an eddy-resolving ocean general circulation model demonstrates that the SAV is generated locally near the western boundary, manifesting as large-scale subthermocline recirculation and leading to alternating northward and southward flows near the Mindanao coast, which plays an efficient role in the intermediate water exchange of the northwest tropical Pacific. Mechanisms underlying the observed SAV are discussed. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978038841&doi=10.1002%2f2016GL069323&partnerID=40&md5=dd22c964718bfb6a3772bc303e1ad225
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9859
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: Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
Recommended Citation:
Wang F.,Song L.,Li Y.,et al. Semiannually alternating exchange of intermediate waters east of the Philippines[J]. Geophysical Research Letters,2016-01-01,43(13).