气候变化领域集成服务门户(CCPortal): Abrupt CO2 release to the atmosphere under glacia and early interglacial climate conditions

CCPortal

DOI	10.1126/science.aay8178
	Abrupt CO2 release to the atmosphere under glacia and early interglacial climate conditions
	Nehrbass-Ahles C.; Shin J.; Schmitt J.; Bereiter B.; Joos F.; Schilt A.; Schmidely L.; Silva L.; Teste G.; Grilli R.; Chappellaz J.; Hodell D.; Fischer H.; Stocker T.F.
发表日期	2020
ISSN	0036-8075
起始页码	1000
结束页码	1005
卷号	369 期号:6506
英文摘要	Pulse-like carbon dioxide release to the atmosphere on centennial time scales has only been identified for the most recent glacial and deglacial periods and is thought to be absent during warmer climate conditions. Here, we present a high-resolution carbon dioxide record from 330,000 to 450,000 years before present, revealing pronounced carbon dioxide jumps (CDJ) under cold and warm climate conditions. CDJ come in two varieties that we attribute to invigoration or weakening of the Atlantic meridional overturning circulation (AMOC) and associated northward and southward shifts of the intertropical convergence zone, respectively. We find that CDJ are pervasive features of the carbon cycle that can occur during interglacial climate conditions if land ice masses are sufficiently extended to be able to disturb the AMOC by freshwater input. Copyright © 2020 The Authors.
英文关键词	carbon dioxide; fresh water; ice; carbon cycle; carbon dioxide; climate conditions; interglacial; intertropical convergence zone; meridional circulation; timescale; Article; Atlantic islands; Atlantic meridional overturning circulation; atmosphere; carbon cycle; carbon dioxide release; climate; cold; controlled study; environment; glacial period; interglacial; priority journal; temperature related phenomena; warm
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/244862
作者单位	Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland; Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom; Institute of Environmental Geosciences (IGE), Grenoble INP, IRD, CNRS, Université Grenoble Alpes, Grenoble, France; Laboratory for Air Pollution/ Environmental Technology, Empa–Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
推荐引用方式 GB/T 7714	Nehrbass-Ahles C.,Shin J.,Schmitt J.,et al. Abrupt CO2 release to the atmosphere under glacia and early interglacial climate conditions[J],2020,369(6506).
APA	Nehrbass-Ahles C..,Shin J..,Schmitt J..,Bereiter B..,Joos F..,...&Stocker T.F..(2020).Abrupt CO2 release to the atmosphere under glacia and early interglacial climate conditions.Science,369(6506).
MLA	Nehrbass-Ahles C.,et al."Abrupt CO2 release to the atmosphere under glacia and early interglacial climate conditions".Science 369.6506(2020).