气候变化领域集成服务门户(CCPortal): Interglacial instability of North Atlantic Deep Water ventilation

CCPortal

DOI	10.1126/science.aay6381
	Interglacial instability of North Atlantic Deep Water ventilation
	Galaasen E.V.; Ninnemann U.S.; Kessler A.; Irvalı N.; Rosenthal Y.; Tjiputra J.; Bouttes N.; Roche D.M.; Kleiven H.F.; Hodell D.A.
发表日期	2020
ISSN	0036-8075
起始页码	1485
结束页码	1489
卷号	367 期号:6485
英文摘要	Disrupting North Atlantic Deep Water (NADW) ventilation is a key concern in climate projections. We use (sub)centennially resolved bottom water d13C records that span the interglacials of the last 0.5 million years to assess the frequency of and the climatic backgrounds capable of triggering large NADW reductions. Episodes of reduced NADW in the deep Atlantic, similar in magnitude to glacial events, have been relatively common and occasionally long-lasting features of interglacials. NADW reductions were triggered across the range of recent interglacial climate backgrounds, which demonstrates that catastrophic freshwater outburst floods were not a prerequisite for large perturbations. Our results argue that large NADW disruptions are more easily achieved than previously appreciated and that they occurred in past climate conditions similar to those we may soon face. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	carbon 13 fresh water organic carbon bottom water catastrophic event climate change deep water ventilation freshwater ecosystem interglacial North Atlantic Deep Water outburst ventilation Article climate change cooling deglaciation flooding foraminifer Greenland Holocene ice sheet iceberg interglacial North Atlantic deep water Pleistocene priority journal water supply Atlantic Ocean Atlantic Ocean (North)
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133601
推荐引用方式 GB/T 7714	Galaasen E.V.,Ninnemann U.S.,Kessler A.,et al. Interglacial instability of North Atlantic Deep Water ventilation[J]. Science,2020,367(6485).
APA	Galaasen E.V..,Ninnemann U.S..,Kessler A..,Irvalı N..,Rosenthal Y..,...&Hodell D.A..(2020).Interglacial instability of North Atlantic Deep Water ventilation.,367(6485).
MLA	Galaasen E.V.,et al."Interglacial instability of North Atlantic Deep Water ventilation".367.6485(2020).