气候变化领域集成服务门户(CCPortal): Characteristics of the Prolonged El Niño Events During 1960

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DOI	10.1029/2020GL088345
	Characteristics of the Prolonged El Niño Events During 1960–2020
	Lee C.-W.; Tseng Y.-H.; Sui C.-H.; Zheng F.; Wu E.-T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:12
英文摘要	Most El Niño events decayed rapidly after boreal winter, while some events prolonged and grew again in the second year, accounting for 5 out of the 17 episodes during 1960–2020. In their development stages, warm water volume (WWV) anomalies were comparable to the other events, but the growth of sea surface temperature (SST) and westerly anomalies and the discharge of WWV were delayed by about a season. The weak but warm SST anomaly in Eastern Pacific persisted into next year, intensified again via Bjerknes feedback, and decayed after the second boreal winter. In June–October of 1968, 1986, 2014, and 2018, a strengthened cross-hemisphere SST gradient appeared in Eastern Pacific, induced anomalous southerly at the equator, and disrupted the zonal positive feedback. The intensity of this meridional mode is independent of the El Niño state and is weaker in late 1990s to early 2010s than in other decades. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Surface waters; Bjerknes feedback; Boreal winters; Development stages; Eastern pacific; Sea surface temperature (SST); SST anomalies; Warm water; Oceanography; air-sea interaction; climate feedback; decadal variation; El Nino; sea surface temperature; seasonal variation; temperature anomaly; volume transport; warm water; Pacific Ocean; Pacific Ocean (East)
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170235
作者单位	Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan; Institute of Oceanography, National Taiwan University, Taipei, Taiwan; Institude of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Lee C.-W.,Tseng Y.-H.,Sui C.-H.,等. Characteristics of the Prolonged El Niño Events During 1960–2020[J],2020,47(12).
APA	Lee C.-W.,Tseng Y.-H.,Sui C.-H.,Zheng F.,&Wu E.-T..(2020).Characteristics of the Prolonged El Niño Events During 1960–2020.Geophysical Research Letters,47(12).
MLA	Lee C.-W.,et al."Characteristics of the Prolonged El Niño Events During 1960–2020".Geophysical Research Letters 47.12(2020).