气候变化领域集成服务门户(CCPortal): Enhanced El Niño–Southern Oscillation Variability in Recent Decades

CCPortal

DOI	10.1029/2019GL083906
	Enhanced El Niño–Southern Oscillation Variability in Recent Decades
	Grothe P.R.; Cobb K.M.; Liguori G.; Di Lorenzo E.; Capotondi A.; Lu Y.; Cheng H.; Edwards R.L.; Southon J.R.; Santos G.M.; Deocampo D.M.; Lynch-Stieglitz J.; Chen T.; Sayani H.R.; Thompson D.M.; Conroy J.L.; Moore A.L.; Townsend K.; Hagos M.; O'Connor G.; Toth L.T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	The El Niño–Southern Oscillation (ENSO) represents the largest source of year-to-year global climate variability. While Earth system models suggest a range of possible shifts in ENSO properties under continued greenhouse gas forcing, many centuries of preindustrial climate data are required to detect a potential shift in the properties of recent ENSO extremes. Here we reconstruct the strength of ENSO variations over the last 7,000 years with a new ensemble of fossil coral oxygen isotope records from the Line Islands, located in the central equatorial Pacific. The corals document a significant decrease in ENSO variance of ~20% from 3,000 to 5,000 years ago, coinciding with changes in spring/fall precessional insolation. We find that ENSO variability over the last five decades is ~25% stronger than during the preindustrial. Our results provide empirical support for recent climate model projections showing an intensification of ENSO extremes under greenhouse forcing. © 2019. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric pressure; Climate models; Earth (planet); Greenhouse gases; Earth system model; Equatorial Pacific; Global climates; Greenhouse forcing; Greenhouse-gas forcing; Oxygen isotope records; Potential shift; Southern oscillation; Climatology; Anthozoa
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/170486
作者单位	School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; Now at the Department of Earth and Environmental Sciences, University of Mary Washington, Fredericksburg, VA, United States; ARC Centre of Excellence for Climate Extremes, and School of Earth, Atmosphere and Environment Monash University, Melbourne, VIC, Australia; NOAA, Earth System Research Laboratory, Physical Sciences Division, Boulder, CO, United States; Institute of Earth Environment Chinese Academy of Sciences, Xi'an, United States; Department of Earth Sciences, University of Minnesota, Minneapolis, MN, United States; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China; Department of Earth System Science, University of California, Irvine, CA, United States; Department of Geosciences, Georgia State University, Atlanta, GA, United States; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Department Geosciences, University of Arizona...
推荐引用方式 GB/T 7714	Grothe P.R.,Cobb K.M.,Liguori G.,等. Enhanced El Niño–Southern Oscillation Variability in Recent Decades[J],2020,47(7).
APA	Grothe P.R..,Cobb K.M..,Liguori G..,Di Lorenzo E..,Capotondi A..,...&Toth L.T..(2020).Enhanced El Niño–Southern Oscillation Variability in Recent Decades.Geophysical Research Letters,47(7).
MLA	Grothe P.R.,et al."Enhanced El Niño–Southern Oscillation Variability in Recent Decades".Geophysical Research Letters 47.7(2020).