气候变化领域集成服务门户(CCPortal): The tropical pacific ENSO–Mean state relationship in climate models over the last millennium

CCPortal

DOI	10.1175/JCLI-D-19-0673.1
	The tropical pacific ENSO–Mean state relationship in climate models over the last millennium
	Wyman D.A.; Conroy J.L.; Karamperidou C.
发表日期	2020
ISSN	0894-8755
起始页码	7539
结束页码	7551
卷号	33 期号:17
英文摘要	ENSO and the mean zonal sea surface temperature gradient (dSST) of the tropical Pacific are important drivers of global climate and vary on decadal to centennial time scales. However, the relationship between dSST and ENSO cannot be assessed with the short instrumental record, and is uncertain in proxy data, with intervals of both stronger and weaker ENSO postulated to occur with overall strong dSST in the past. Here we assess the ENSO–dSST relationship during the last millennium using general circulation models (GCMs) participating in phase 3 of the Paleoclimate Modeling Intercomparison Project. Last millennium GCM simulations show diversity in the strength and direction of the ENSO–dSST relationship. Yet, the models that best simulate modern tropical Pacific climate frequently have a more negative ENSO–dSST correlation. Thus, last millennium tropical Pacific climate simulations support the likelihood of enhanced ENSO during decadal to centennial periods of reduced tropical Pacific dSST. However, the alternating directional ENSO–dSST relationship in all model simulations suggests that this relationship is not constant through time and is likely controlled by multiple mechanisms. © 2020 American Meteorological Society.
英文关键词	Climatology; Oceanography; Surface waters; Tropics; Climate simulation; General circulation model; Global climates; Last millenniums; Model inter comparisons; Model simulation; Paleoclimates; Sea Surface Temperature gradients; Climate models; climate modeling; decadal variation; El Nino-Southern Oscillation; general circulation model; paleoclimate; sea surface temperature; Pacific Ocean; Pacific Ocean (Tropical)
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171152
作者单位	Department of Geology, University of Illinois at Urbana–Champaign, Urbana, IL, United States; Department of Geology, Department of Plant Biology, University of Illinois at Urbana–Champaign, Urbana, IL, United States; Department of Atmospheric Sciences, University of Hawai‘i at Manoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Wyman D.A.,Conroy J.L.,Karamperidou C.. The tropical pacific ENSO–Mean state relationship in climate models over the last millennium[J],2020,33(17).
APA	Wyman D.A.,Conroy J.L.,&Karamperidou C..(2020).The tropical pacific ENSO–Mean state relationship in climate models over the last millennium.Journal of Climate,33(17).
MLA	Wyman D.A.,et al."The tropical pacific ENSO–Mean state relationship in climate models over the last millennium".Journal of Climate 33.17(2020).