气候变化领域集成服务门户(CCPortal): Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials

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DOI	10.1126/science.abg1737
	Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials
	Yin Q.Z.; Wu Z.P.; Berger A.; Goosse H.; Hodell D.
发表日期	2021
ISSN	0036-8075
起始页码	1035
结束页码	1040
卷号	373 期号:6558
英文摘要	Abrupt cooling is observed at the end of interglacials in many paleoclimate records, but the mechanism responsible remains unclear. Using model simulations, we demonstrate that there exists a threshold in the level of astronomically induced insolation below which abrupt changes at the end of interglacials of the past 800,000 years occur. When decreasing insolation reaches the critical value, it triggers a strong, abrupt weakening of the Atlantic meridional overturning circulation and a cooler mean climate state accompanied by high-amplitude variations lasting for several thousand years. The mechanism involves sea ice feedbacks in the Nordic and Labrador Seas. The ubiquity of this threshold suggests its fundamental role in terminating the warm climate conditions at the end of interglacials. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	circulation; cooling; insolation; interglacial; threshold; article; Atlantic meridional overturning circulation; critical value; interglacial; sea ice; simulation; sunlight; Atlantic Ocean; Canada; Labrador; Newfoundland and Labrador
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/246104
作者单位	Georges Lemaître Center for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium; Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom
推荐引用方式 GB/T 7714	Yin Q.Z.,Wu Z.P.,Berger A.,et al. Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials[J],2021,373(6558).
APA	Yin Q.Z.,Wu Z.P.,Berger A.,Goosse H.,&Hodell D..(2021).Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials.Science,373(6558).
MLA	Yin Q.Z.,et al."Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials".Science 373.6558(2021).