气候变化领域集成服务门户(CCPortal): Summer and winter Atlantic Niño: connections with ENSO and implications

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DOI	10.1007/s00382-020-05424-x
	Summer and winter Atlantic Niño: connections with ENSO and implications
	Hounsou-Gbo A.; Servain J.; Vasconcelos Junior F.C.; Martins E.S.P.R.; Araújo M.
发表日期	2020
ISSN	0930-7575
起始页码	2939
结束页码	2956
卷号	55
英文摘要	The teleconnection between the Atlantic Niño and the Pacific El Niño Southern Oscillation (ENSO) is revisited using observational and reanalysis data for the 1905–2014 period. Two types of Atlantic Niño are significantly negatively correlated with ENSO, with Atlantic leading ENSO by 6-month to 1-year. The first one is the already well-known connection between the boreal summer Atlantic Niño (ATL3: 3° N–3° S, 20° W–0°) and the subsequent winter ENSO (Niño3: 5° N–5° S, 150° W–90° W). This relationship is strong in the first and last decades of the study period. It is shown that a second Atlantic Niño in boreal fall/early winter (October–December, hereinafter called winter Atlantic Niño) is also significantly correlated with the following year ENSO. This winter Atlantic Niño leads to an early development of ENSO from boreal summer onwards, with a marked multidecadal modulation of the lead time. A nearly 1-year leading connection between winter Atlantic Niño and the following ENSO is generally observed in the mid-twentieth century, mostly when the summer Atlantic Niño teleconnection with the subsequent winter ENSO is weak. The same mechanism of the Atlantic–Pacific Niño connection, which involves the Walker circulation, operates for the two types of Atlantic Niño. Our analysis supports the leading influence of the summer and winter Atlantic equatorial modes on climate variability in South America. These results suggest the relevance of different types of Atlantic Niño for the 6-month to 1-year predictability of ENSO and its climatic impacts. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Atlantic equatorial mode; El Niño southern oscillation; Predictability; South American climate; Teleconnection
语种	英语
scopus关键词	climate oscillation; climate prediction; decadal variation; El Nino-Southern Oscillation; summer; teleconnection; winter; Atlantic Ocean; South America
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145263
作者单位	Research Institute for Meteorology and Water Resources (FUNCEME), Av. Rui Barbosa, 1246, Fortaleza, CE 60115-221, Brazil; International Chair in Mathematical Physics and Applications (ICMPA-Unesco Chair), UAC, 072 P.O. Box 50, Cotonou, Benin; Institut de Recherche pour le Développement (IRD), LOCEAN, Université de Paris 6, Paris, 75000, France; Laboratório de Oceanografia Física Estuarina e Costeira (LOFEC), Department of Oceanography-DOCEAN, Federal University of Pernambuco-UFPE, Av. Arquitetura s/n, Recife, PE 50740-550, Brazil; Brazilian Research Network on Global Climate Change (Rede CLIMA), Av. dos Astronautas, 1758, São José dos Campos, SP 1227-010, Brazil
推荐引用方式 GB/T 7714	Hounsou-Gbo A.,Servain J.,Vasconcelos Junior F.C.,et al. Summer and winter Atlantic Niño: connections with ENSO and implications[J],2020,55.
APA	Hounsou-Gbo A.,Servain J.,Vasconcelos Junior F.C.,Martins E.S.P.R.,&Araújo M..(2020).Summer and winter Atlantic Niño: connections with ENSO and implications.Climate Dynamics,55.
MLA	Hounsou-Gbo A.,et al."Summer and winter Atlantic Niño: connections with ENSO and implications".Climate Dynamics 55(2020).