globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-016-3389-8
Scopus记录号: 2-s2.0-84991045254
论文题名:
Linking a sea level pressure anomaly dipole over North America to the central Pacific El Niño
作者: Ding R.; Li J.; Tseng Y.-H.; Sun C.; Zheng F.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 49, 期:4
起始页码: 1321
结束页码: 1339
语种: 英语
英文关键词: Central Pacific El Niño ; North American dipole (NAD) ; North Pacific Oscillation (NPO)
英文摘要: This study demonstrates the close connection between the north–south dipole pattern of sea level pressure anomalies over northeastern North America to the western tropical North Atlantic, referred to as the North American dipole (NAD), and the central Pacific (CP)-type El Niño a year later. In contrast to other ENSO precursors, such as the North Pacific Oscillation (NPO) and Pacific–North America (PNA) pattern, the NAD appears more closely related to the CP-type El Niño than to the eastern Pacific (EP)-type El Niño, indicating that the NAD may serve as a unique precursor for the CP El Niño. The wintertime NAD induces sea surface temperature anomalies in the northern tropical Atlantic (NTA), which subsequently play an important role in developing the CP El Niño-like pattern in the tropical Pacific over the course of the following year. It appears that the NAD influence on CP El Niño involves air–sea interaction over several major basins, including the subtropical/tropical Pacific and the NTA. Additional analysis indicates that the correlation of either the NAD index or the NPO index with the CP El Niño state a year later depends on the status of the other index. When the wintertime NAD index is of the opposite sign to the simultaneous NPO index, the correlation of the NAD or NPO index with the Niño4 index becomes much weaker. © 2016, Springer-Verlag Berlin Heidelberg.
资助项目: Guangzhou Science and Technology Program key projects ; NSFC, National Natural Science Foundation of China ; CAS, Chinese Academy of Sciences
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53142
Appears in Collections:过去全球变化的重建

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作者单位: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu, China; College of Global Change and Earth System Sciences (GCESS), Beijing Normal University, Beijing, China; Joint Center for Global Change Studies, Beijing, China; Climate and Global Dynamics Division, NCAR, Boulder, CO, United States

Recommended Citation:
Ding R.,Li J.,Tseng Y.-H.,et al. Linking a sea level pressure anomaly dipole over North America to the central Pacific El Niño[J]. Climate Dynamics,2017-01-01,49(4)
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