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Structure and Variability of the North Equatorial Current/Undercurrent from Mooring Measurements at 130 degrees E in the Western Pacific
Zhang, Linlin1,2; Wang, Fu Jun1,2; Wang, Qingye1,2; Hu, Shijian1,2; Wang, Fan1,2; Hu, Dunxin1,2
2017-04-19
发表期刊SCIENTIFIC REPORTS
卷号7
文章类型Article
摘要The mean structure and variability of the North Equatorial Current/Undercurrent (NEC/NEUC) are investigated with one-year Acoustic Doppler Current Profilers measurements from 4 subsurface moorings deployed at 10.5 degrees N, 13 degrees N, 15.5 degrees N, and 18 degrees N along 13 0 degrees E in the western Pacific. The strong westward flowing NEC ranges from the sea surface down to 400 m, and the mean zonal velocity of the NEC at 10.5 degrees N is around -30 cm/s at the depth of 70 m. Eastward flowing NEUC jets are detected below the NEC at 10.5 degrees N and 13 degrees N, and the depth of the NEUC could reach at least 900 m. The mean velocity of the NEUC is around 4.2 cm/s at 800 m. No eastward undercurrents are observed at 15 degrees N and 18 degrees N. The mooring measurements also reveal a strong intraseasonal variability of the currents at all 4 mooring sites, and the period is around 70-120 days. The vertical structure of this intraseasonal variability varies at different latitudes. The variability of the NEUC jets at 10.5 degrees N and 13 degrees N appears to be dominated by subthermocline signals, while the variability of the currents at 15.5 degrees N and 18(degrees)N is dominated by surface-intensified signals.
DOI10.1038/srep46310
收录类别SCI
语种英语
WOS记录号WOS:000399538900001
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文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136696
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China
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Zhang, Linlin,Wang, Fu Jun,Wang, Qingye,et al. Structure and Variability of the North Equatorial Current/Undercurrent from Mooring Measurements at 130 degrees E in the Western Pacific[J]. SCIENTIFIC REPORTS,2017,7.
APA Zhang, Linlin,Wang, Fu Jun,Wang, Qingye,Hu, Shijian,Wang, Fan,&Hu, Dunxin.(2017).Structure and Variability of the North Equatorial Current/Undercurrent from Mooring Measurements at 130 degrees E in the Western Pacific.SCIENTIFIC REPORTS,7.
MLA Zhang, Linlin,et al."Structure and Variability of the North Equatorial Current/Undercurrent from Mooring Measurements at 130 degrees E in the Western Pacific".SCIENTIFIC REPORTS 7(2017).
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