气候变化领域集成服务门户(CCPortal): The deglacial evolution of north atlantic deep convection

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DOI	10.1126/science.1196812
	The deglacial evolution of north atlantic deep convection
	Thornalley D.J.R.; Barker S.; Broecker W.S.; Elderfield H.; McCave I.N.
发表日期	2011
ISSN	0036-8075
起始页码	202
结束页码	205
卷号	331 期号:6014
英文摘要	Deepwater formation in the North Atlantic by open-ocean convection is an essential component of the overturning circulation of the Atlantic Ocean, which helps regulate global climate. We use water-column radiocarbon reconstructions to examine changes in northeast Atlantic convection since the Last Glacial Maximum. During cold intervals, we infer a reduction in open-ocean convection and an associated incursion of an extremely radiocarbon (14C)- depleted water mass, interpreted to be Antarctic Intermediate Water. Comparing the timing of deep convection changes in the northeast and northwest Atlantic, we suggest that, despite a strong control on Greenland temperature by northeast Atlantic convection, reduced open-ocean convection in both the northwest and northeast Atlantic is necessary to account for contemporaneous perturbations in atmospheric circulation.
英文关键词	carbon 14; Antarctic Intermediate Water; atmospheric circulation; deglaciation; global climate; Last Glacial Maximum; oceanic convection; open ocean; perturbation; water column; water mass; Antarctica; article; Atlantic Ocean; atmosphere; deglaciation; evolution; global climate; Greenland; last glacial maximum; Neogloboquadrina pachyderma; nonhuman; planktonic foraminifera; priority journal; thermodynamics; Arctic; Atlantic Ocean; Atlantic Ocean (North); Greenland
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/245739
作者单位	School of Earth and Ocean Sciences, Cardiff University, Cardiff, CF10 3YE, United Kingdom; Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, United Kingdom; Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964-8000, United States
推荐引用方式 GB/T 7714	Thornalley D.J.R.,Barker S.,Broecker W.S.,et al. The deglacial evolution of north atlantic deep convection[J],2011,331(6014).
APA	Thornalley D.J.R.,Barker S.,Broecker W.S.,Elderfield H.,&McCave I.N..(2011).The deglacial evolution of north atlantic deep convection.Science,331(6014).
MLA	Thornalley D.J.R.,et al."The deglacial evolution of north atlantic deep convection".Science 331.6014(2011).