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DOI	10.1126/science.1081002
	Meltwater pulse 1A from Antarctica as a trigger of the Bølling-Allerød warm interval
	Weaver A.J.; Saenko O.A.; Clark P.U.; Mitrovica J.X.
发表日期	2003
ISSN	0036-8075
起始页码	1709
结束页码	1713
卷号	299 期号:5613
英文摘要	Meltwater pulse 1A (mwp-1A) was a prominent feature of the last deglaciation, which led to a sea-level rise of ∼20 meters in less than 500 years. Concurrent with mwp-1A was the onset of the Bølling-Allerød interstadial event (14,600 years before the present), which marked the termination of the last glacial period. Previous studies have been unable to reconcile a warm Northern Hemisphere with mwp-1A originating from the Laurentide or Fennoscandian ice sheets. With the use of a climate model of intermediate complexity, we demonstrate that with mwp-1A originating from the Antarctic Ice Sheet, consistent with recent sea-level fingerprinting inferences, the strength of North Atlantic Deep Water (NADW) formation increases, thereby warming the North Atlantic region and providing an explanation for the onset of the Bølling-Allerød warm interval. The established mode of active NADW formation is then able to respond to subsequent freshwater forcing from the Laurentide and Fennoscandian ice sheets, setting the stage for the Younger Dryas cold period.
英文关键词	Glaciers; Ice; Sea level; Meltwater pulses; Water; Bolling; ice sheet; interstadial; last deglaciation; meltwater; paleoceanography; paleoclimate; Antarctica; article; cold climate; density; freshwater environment; glacial mass balance; greenhouse effect; hysteresis; melting point; paleoclimatology; priority journal; sea level rise; sea surface temperature; thermocline; Antarctica
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/245979
作者单位	School of Earth and Ocean Sciences, University of Victoria, Post Office Box 3055, Victoria, BC V8W 3P6, Canada; Department of Geosciences, Oregon State University, Corvallis, OR 97331, United States; Department of Physics, University of Toronto, Toronto, Ont. M5S 1A7, Canada
推荐引用方式 GB/T 7714	Weaver A.J.,Saenko O.A.,Clark P.U.,et al. Meltwater pulse 1A from Antarctica as a trigger of the Bølling-Allerød warm interval[J],2003,299(5613).
APA	Weaver A.J.,Saenko O.A.,Clark P.U.,&Mitrovica J.X..(2003).Meltwater pulse 1A from Antarctica as a trigger of the Bølling-Allerød warm interval.Science,299(5613).
MLA	Weaver A.J.,et al."Meltwater pulse 1A from Antarctica as a trigger of the Bølling-Allerød warm interval".Science 299.5613(2003).