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Decadal variations of the transport and bifurcation of the Pacific North Equatorial Current
Zhai, Fangguo1; Hu, Dunxin2; Li, Peiliang1
2018-02-01
发表期刊JOURNAL OF OCEANOGRAPHY
ISSN0916-8370
卷号74期号:1页码:65-80
通讯作者Zhai, Fangguo(gfzhai@ouc.edu.cn)
摘要Decadal 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.
关键词North Equatorial Current Bifurcation latitude Decadal variation Pacific Decadal Oscillation Tropical Pacific Decadal Variability North Pacific
DOI10.1007/s10872-017-0441-1
收录类别SCI
语种英语
资助项目Shandong 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] ; Shandong 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研究方向Oceanography
WOS类目Oceanography
WOS记录号WOS:000419913900006
出版者SPRINGER
引用统计
被引频次:5[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/337002/157811
专题海洋环流与波动重点实验室
通讯作者Zhai, Fangguo
作者单位1.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
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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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