气候变化领域集成服务门户(CCPortal): Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling

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DOI	10.1126/science.aac9937
	Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling
	Rustic G.T.; Koutavas A.; Marchitto T.M.; Linsley B.K.
发表日期	2015
ISSN	0036-8075
起始页码	1537
结束页码	1541
卷号	350 期号:6267
英文摘要	Tropical Pacific Ocean dynamics during the Medieval Climate Anomaly (MCA) and the Little Ice Age (LIA) are poorly characterized due to a lack of evidence from the eastern equatorial Pacific.We reconstructed sea surface temperature, El Niño-Southern Oscillation (ENSO) activity, and the tropical Pacific zonal gradient for the past millennium from Galápagos ocean sediments. We document a mid-millennium shift (MMS) in ocean-atmosphere circulation around 1500-1650 CE, from a state with dampened ENSO and strong zonal gradient to one with amplified ENSO and weak gradient. The MMS coincided with the deepest LIA cooling and was probably caused by a southward shift of the intertropical convergence zone. The peak of the MCA (900-1150 CE) was a warm period in the eastern Pacific, contradicting the paradigm of a persistent La Niña pattern.
英文关键词	cooling; El Nino-Southern Oscillation; intertropical convergence zone; La Nina; Little Ice Age; marine sediment; paleoclimate; sea surface temperature; warming; Article; bioturbation; circannual rhythm; cooling; El Nino; foraminifer; heat; Little Ice Age; Medieval Warm Period; nonhuman; Pacific Ocean; priority journal; sea surface temperature; sediment; sedimentation rate; warming; Ecuador; Galapagos Islands; Pacific Ocean; Pacific Ocean (East); Pacific Ocean (Equatorial); Pacific Ocean (Tropical)
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245307
作者单位	Department of Engineering Science and Physics, College of Staten Island, City University of New York, Staten Island, NY 10314, United States; Doctoral Program in Earth and Environmental Sciences, Graduate Center of the City University of New York, New York, NY 10016, United States; Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States; Department of Geological Sciences, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO 80309, United States
推荐引用方式 GB/T 7714	Rustic G.T.,Koutavas A.,Marchitto T.M.,et al. Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling[J],2015,350(6267).
APA	Rustic G.T.,Koutavas A.,Marchitto T.M.,&Linsley B.K..(2015).Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling.Science,350(6267).
MLA	Rustic G.T.,et al."Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling".Science 350.6267(2015).