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	Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations
	Hu, Shijian1,2,3,4; Lu, Xi1,3,4; Li, Shihan1,3,4; Wang, Fan1,2,3,4; Guan, Cong1,2,3,4; Hu, Dunxin1,2,3,4; Xin, Linchao1,3,4; Ma, Jie3,4
刊名	SCIENCE CHINA-EARTH SCIENCES
	2021-02-10
页码	11
关键词	Pacific Western boundary current Multi-decadal trend Global variation Hydrological observation
ISSN号	1674-7313
DOI	10.1007/s11430-020-9703-4
通讯作者	Hu, Shijian(sjhu@qdio.ac.cn)
英文摘要	As large-scale ocean circulation is a key regulator in the redistribution of oceanic energy, evaluating the multi-decadal trends in the western Pacific Ocean circulation under global warming is essential for not only understanding the basic physical processes but also predicting future climate change in the western Pacific. Employing the hydrological observations of World Ocean Atlas 2018 (WOA18) from 1955 to 2017, this study calculated the geostrophic currents, volume transport and multi-decadal trends for the North Equatorial Current (NEC), the North Equatorial Countercurrent (NECC), the Mindanao Current (MC), the Kuroshio Current (KC) in the origin and the New Guinea Coastal Undercurrent (NGCUC) within tropical western Pacific Ocean over multi-decades. Furthermore, this study examined the contributions of temperature and salinity variations. The results showed significant strengthening trends in NEC, MC and NGCUC over the past six decades, which is mainly contributed by temperature variations and consistent with the tendency in the dynamic height pattern. Zonal wind stress averaged over the western Pacific Ocean in the same latitude of each current represents the decadal variation and multi-decadal trends in corresponding ocean currents, indicating that the trade wind forcing plays an important role in the decadal trend in the tropical western Pacific circulation. Uncertainties in the observed hydrological data and trends in the currents over the tropical western Pacific are also discussed. Given that the WOA18 dataset covers most of the historical hydrological sampling data for the tropical western Pacific, this paper provides important observational information on the multi-decadal trend of the large-scale ocean circulation in the western Pacific.
资助项目	National Natural Science Foundation of China[41776018] ; National Natural Science Foundation of China[91858101] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDB42010403] ; Key Deployment Project of Centre for Ocean Mega-Research of Science of CAS[COMS2019Q01] ; Key Deployment Project of Centre for Ocean Mega-Research of Science of CAS[COMS2019Q03] ; CAS-CSIRO Project Fund[133244KYSB20190031] ; Youth Innovation Promotion Association of CAS[2018240]
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000618156100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/169712]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Hu, Shijian
作者单位	1.Univ Chinese Acad Sci, Coll Marine Sci, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Hu, Shijian,Lu, Xi,Li, Shihan,et al. Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations[J]. SCIENCE CHINA-EARTH SCIENCES,2021:11.
APA	Hu, Shijian.,Lu, Xi.,Li, Shihan.,Wang, Fan.,Guan, Cong.,...&Ma, Jie.(2021).Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations.SCIENCE CHINA-EARTH SCIENCES,11.
MLA	Hu, Shijian,et al."Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations".SCIENCE CHINA-EARTH SCIENCES (2021):11.

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