气候变化领域集成服务门户(CCPortal): Stronger increase in the frequency of extreme convective than extreme warm El Niño events under greenhouse warming

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DOI	10.1175/JCLI-D-19-0376.1
	Stronger increase in the frequency of extreme convective than extreme warm El Niño events under greenhouse warming
	Wang G.; Cai W.; Santoso A.
发表日期	2020
ISSN	0894-8755
起始页码	675
结束页码	690
卷号	33 期号:2
英文摘要	Since 1979, three extreme El Niño events occurred, in 1982/83, 1997/98, and 2015/16, with pronounced impacts that disrupted global weather patterns, agriculture, fisheries, and ecosystems. Although all three episodes are referred to as strong equatorial eastern Pacific (EP) El Niño events, the 2015/16 event is considered a mixed regime of both EP and central Pacific (CP) El Niño. During such extreme events, sea surface temperature (SST) anomalies peak over the EP region, hereafter referred to as an extreme warm El Niño (ExtWarmEN) event. Simultaneously, the intertropical convergence zone (ITCZ) moves southward to the usually dry and cold Niño-3 region, resulting in dramatic rainfall increases to more than 5 mm day21 averaged over boreal winter, referred to as an extreme convective El Niño (ExtConEN) event. However, in climate models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) that are able to simulate both types of events, ExtConEN events are found not to always coincide with ExtWarmEN events and the disassociation becomes more distinct under greenhouse warming when the increased frequency of ExtConEN events is notably larger than that of ExtWarmEN events. The disassociation highlights the role of eastward migration of western Pacific convection and equatorward shift of the South Pacific convergence zone associated with the faster warming over the EP region as a result of greenhouse warming. © 2019 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Climate models; Extreme weather; Greenhouses; Oceanography; Surface waters; Coupled Model Intercomparison Project; Equatorward shift; Greenhouse warming; Intertropical convergence zone; Sea surface temperature anomalies; South pacific convergence zones; Weather patterns; Western Pacific; Nickel compounds; climate change; convective system; El Nino; extreme event; greenhouse effect; intertropical convergence zone; rainfall; warming; Pacific Ocean; Pacific Ocean (Central); Pacific Ocean (East); Pacific Ocean (South); Pacific Ocean (West)
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/171490
作者单位	Key Laboratory of Physical Oceanography, Institute for Advanced Ocean Studies, Ocean University of China, Qingdao, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Centre for Southern Hemisphere Oceans Research, CSIRO Oceans and Atmosphere, Hobart, TAS, Australia; Australian Research Council Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Wang G.,Cai W.,Santoso A.. Stronger increase in the frequency of extreme convective than extreme warm El Niño events under greenhouse warming[J],2020,33(2).
APA	Wang G.,Cai W.,&Santoso A..(2020).Stronger increase in the frequency of extreme convective than extreme warm El Niño events under greenhouse warming.Journal of Climate,33(2).
MLA	Wang G.,et al."Stronger increase in the frequency of extreme convective than extreme warm El Niño events under greenhouse warming".Journal of Climate 33.2(2020).