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DOI	10.1088/1748-9326/aba20a
	Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Nio events
	Yu J.; Zhang X.; Li L.; Shi C.; Ye Y.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Despite similar evolution of Nio3.4 index for three strong El Nio events in the tropical Pacific in 1982-1983, 1997-1998 and 2015-2016, divergent sea surface temperature anomalies (SSTAs) were observed in the North Atlantic (NA) in spring following El Nio peak. Strong teleconnection occurred for the first two events in 1982-1983 and 1997-1998, leading to a negative phase of a North Atlantic Oscillation-like circulation over the extratropical NA, and thus a positive tripolar SSTA pattern in the NA. But the teleconnection was weak for the case of 2015-2016 El Nio, the SSTA in spring 2016 in NA being mainly created and maintained by the preconditioning of the NA basin and local atmosphere-ocean interactions. The salient difference among the three events resides in their ways to operate the teleconnection linking the central-eastern equatorial Pacific and the subtropical eastern North Pacific to the extratropical NA, which would be a key to explain the different impacts of the three exceptional El Nio events. It is furthermore shown that the reduced anomalous westerlies over Central America along 30° N around the peak time of 2015-2016 El Nio play a role of inhibition for an efficient Rossby wave energy propagation from the tropics, eastward into the Gulf of Mexico and northward into midlatitudes in the western NA. © 2020 Institute of Physics Publishing. All rights reserved.
英文关键词	North atlantic SSTA; Super el ninõ events; Teleconnection
语种	英语
scopus关键词	Atmospheric pressure; Atmospheric temperature; Atmospheric thermodynamics; Mechanical waves; Submarine geophysics; Surface properties; Surface waters; Tropics; Wave energy conversion; Atmosphere-ocean interactions; Central America; Eastern equatorial Pacific; Eastern north pacific; North Atlantic oscillations; Sea surface temperature (SST); Sea surface temperature anomalies; Teleconnections; Oceanography; air-sea interaction; atmospheric circulation; El Nino-Southern Oscillation; index method; North Atlantic Oscillation; Rossby wave; sea surface temperature; teleconnection; temperature anomaly; wave propagation; westerly; Atlantic Ocean; Central America; Gulf of Mexico; Pacific Ocean; Pacific Ocean (North); Pacific Ocean (Tropical)
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153809
作者单位	Key Laboratory of Meteorological Disaster, Min. of Educ. (KLME)/Collab. Innov. Ctr. on Forecast and Eval. of Meteorol. Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China; Laboratoire de Méteórologie Dynamique, Cnrs, Sorbonne Université, Paris, France
推荐引用方式 GB/T 7714	Yu J.,Zhang X.,Li L.,et al. Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Nio events[J],2020,15(9).
APA	Yu J.,Zhang X.,Li L.,Shi C.,&Ye Y..(2020).Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Nio events.Environmental Research Letters,15(9).
MLA	Yu J.,et al."Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Nio events".Environmental Research Letters 15.9(2020).