IOCAS-IR  > 海洋环流与波动重点实验室
Decadal variations of the transport and bifurcation of the Pacific North Equatorial Current
Zhai, Fangguo1; Hu, Dunxin2; Li, Peiliang1
2018-02-01
Source PublicationJOURNAL OF OCEANOGRAPHY
ISSN0916-8370
Volume74Issue:1Pages:65-80
Corresponding AuthorZhai, Fangguo(gfzhai@ouc.edu.cn)
AbstractDecadal variations of the transport and bifurcation latitude of the North Equatorial Current (NEC) in the northwestern tropical Pacific Ocean over 1959-2011 are investigated using outputs of the Ocean Analysis/Reanalysis System 3 prepared by the European Centre for Medium-Range Weather Forecasts. The results indicate that the NEC transports at different longitudes have different decadal fluctuations, which are strongest around 139A degrees E. The NEC bifurcation latitude (NBL) has its largest decadal variations around 150 m. Extremes of the decadal NEC transport and NBL before 1975 correspond to different circulation anomalies from those after 1975. The regression map against decadal NBL exhibits negative sea surface height (SSH) anomalies and a cyclonic gyre anomaly over the northwestern tropical Pacific Ocean, while that against the decadal NEC transport exhibits a dipole structure, with positive/negative SSH anomalies to the north/south of about 13A degrees N. Furthermore, decadal variations of the NEC transport and NBL over the whole period have different correlations with Pacific Decadal Oscillation (PDO) and Tropical Pacific Decadal Variability (TPDV). Generally, the decadal NEC transport shows higher correlations with PDO than with TPDV, while the NBL has higher correlations with TPDV than with PDO. The high correlation of decadal NEC transport with PDO mainly comes from that of its northern branch with PDO, while its southern branch shows higher correlation with TPDV.
KeywordNorth Equatorial Current Bifurcation latitude Decadal variation Pacific Decadal Oscillation Tropical Pacific Decadal Variability North Pacific
DOI10.1007/s10872-017-0441-1
Indexed BySCI
Language英语
Funding ProjectShandong Provincial Natural Science Foundation[ZR2015DQ006] ; National Natural Science Foundation of China[41506008] ; National Natural Science Foundation of China[41476002] ; China Postdoctoral Science Foundation[2015M570609] ; Open Fund of the Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Sciences[KLOCW1503]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000419913900006
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157811
Collection海洋环流与波动重点实验室
Corresponding AuthorZhai, Fangguo
Affiliation1.Ocean Univ China, Coll Ocean & Atmospher Sci, Phys Oceanog Lab, 238 Songling Rd, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, 7 Nanhai Rd, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Zhai, Fangguo,Hu, Dunxin,Li, Peiliang. Decadal variations of the transport and bifurcation of the Pacific North Equatorial Current[J]. JOURNAL OF OCEANOGRAPHY,2018,74(1):65-80.
APA Zhai, Fangguo,Hu, Dunxin,&Li, Peiliang.(2018).Decadal variations of the transport and bifurcation of the Pacific North Equatorial Current.JOURNAL OF OCEANOGRAPHY,74(1),65-80.
MLA Zhai, Fangguo,et al."Decadal variations of the transport and bifurcation of the Pacific North Equatorial Current".JOURNAL OF OCEANOGRAPHY 74.1(2018):65-80.
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