Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations

doi:10.1007/s11430-020-9703-4

IOCAS-IR > 海洋环流与波动重点实验室

	Multi-decadal trends in the tropical Pacific western boundary currents retrieved from historical hydrological observations
	Hu, Shijian 1,2,3,4; Lu, Xi1,2,4 ; Li, Shihan 1,2,4; Wang, Fan1,2,3,4 ; Guan, Cong1,2,3,4 ; Hu, Dunxin 1,2,3,4; Xin, Linchao 1,2,4; Ma, Jie 1,2
	2021-02-10
发表期刊	SCIENCE CHINA-EARTH SCIENCES
ISSN	1674-7313
页码	11
通讯作者	Hu, Shijian(sjhu@qdio.ac.cn)
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.
关键词	Pacific Western boundary current Multi-decadal trend Global variation Hydrological observation
DOI	10.1007/s11430-020-9703-4
收录类别	SCI
语种	英语
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
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000618156100001
出版者	SCIENCE PRESS
引用统计	被引频次：12[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/337002/169713
专题	海洋环流与波动重点实验室
通讯作者	Hu, Shijian
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 4.Univ Chinese Acad Sci, Coll Marine Sci, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
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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