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Moored Observations of Transport and Variability of Halmahera Sea Currents
Li, Xiang1,2,3; Yuan, Dongliang1,2,3,4; Wang, Zheng1,2,3; Li, Yao1,2,3; Corvianawatie, Corry1,2,3,4,5; Surinati, Dewi5; Sandra, Asep5; Bayhaqi, Ahmad5; Avianto, Praditya5; Kusmanto, Edi5; Dirhamsyah, Dirham5; Arifin, Zainal5
2020-02-01
发表期刊JOURNAL OF PHYSICAL OCEANOGRAPHY
ISSN0022-3670
卷号50期号:2页码:471-488
通讯作者Yuan, Dongliang([email protected])
摘要The ocean currents in the Halmahera Sea are studied using a subsurface mooring deployed in the Jailolo Strait from November 2015 to October 2017. The subtidal currents of the mooring measurements are characterized by a two-layer system, with the current variability below about 200 m in opposite phases to that in the upper layer. The mean along-strait velocity (ASV) is toward the Indonesian seas in the whole water column, producing an estimated mean transport of 2.44 +/- 0.42 Sv (1 Sv equivalent to 10(6) m(3) s(-1)). The errors of the transport calculation based on the single mooring measurements are estimated to be less than 15% using simulations of high-resolution ocean models. A weak current is observed to flow northward during 2017 at the bottom of the strait. The ASV variability is found to be dominated by an annual cycle both in the upper and lower layers. The total transport, however, is dominated by semiannual variability because of the cancelation of the annual transports in the upper and lower layers. The variability of the transport is suggested to be driven by the pressure difference between the Pacific Ocean and the Indonesian seas, as evidenced by the agreement between the satellite pressure gradient and the two-layer transports. The transport of the Jailolo Strait during the 2015/16 super El Nino is found to be nearly the same as that during the 2016 La Nina, suggesting that the interannual variability of the transport is much smaller than the seasonal cycle.
关键词Currents Ocean circulation Transport In situ oceanic observations Oceanic variability
DOI10.1175/JPO-D-19-0109.1
收录类别SCI
语种英语
资助项目NSFC[41421005]; NSFC[41720104008]; NSFC[91858204]; NSFC[41876025]; CAS[XDA11010205]; QMSNL[2018SDKJ0104-02]; Shandong Provincial projects[U1606402]
WOS研究方向Oceanography
WOS类目Oceanography
WOS记录号WOS:000513952600003
出版者AMER METEOROLOGICAL SOC
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/165620
专题海洋环流与波动重点实验室
通讯作者Yuan, Dongliang
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Chinese Acad Sci, Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Indonesian Inst Sci, Res Ctr Oceanog, Jakarta, Indonesia
第一作者单位海洋环流与波动重点实验室
通讯作者单位海洋环流与波动重点实验室
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Li, Xiang,Yuan, Dongliang,Wang, Zheng,et al. Moored Observations of Transport and Variability of Halmahera Sea Currents[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2020,50(2):471-488.
APA Li, Xiang.,Yuan, Dongliang.,Wang, Zheng.,Li, Yao.,Corvianawatie, Corry.,...&Arifin, Zainal.(2020).Moored Observations of Transport and Variability of Halmahera Sea Currents.JOURNAL OF PHYSICAL OCEANOGRAPHY,50(2),471-488.
MLA Li, Xiang,et al."Moored Observations of Transport and Variability of Halmahera Sea Currents".JOURNAL OF PHYSICAL OCEANOGRAPHY 50.2(2020):471-488.
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