气候变化领域集成服务门户(CCPortal): Younger Dryas deglaciation of Scotland driven by warming summers

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DOI	10.1073/pnas.1321122111
	Younger Dryas deglaciation of Scotland driven by warming summers
	Bromley G.R.M.; Putnam A.E.; Rademaker K.M.; Lowell T.V.; Schaefer J.M.; Hall B.; Winckler G.; Birkel S.D.; Borns H.W.
发表日期	2014
ISSN	0027-8424
起始页码	6215
结束页码	6219
卷号	111 期号:17
英文摘要	The Younger Dryas Stadial (YDS; ∼12,900-11,600 y ago) in the Northern Hemisphere is classically defined by abrupt cooling and renewed glaciation during the last glacial-interglacial transition. Although this event involved a global reorganization of atmospheric and oceanic circulation [Denton GH, Alley RB, Comer GC, Broecker WS (2005) Quat Sci Rev 24:1159-1182], the magnitude, seasonality, and geographical footprint of YDS cooling remain unresolved and pose a challenge to our understanding of abrupt climate change. Here, we present a deglacial chronology from Scotland, immediately downwind of the North Atlantic Ocean, indicating that the Scottish ice cap disintegrated during the first half of the YDS. We suggest that stratification of the North Atlantic Ocean resulted in amplified seasonality that, paradoxically, stimulated a severe wintertime climate while promoting warming summers through solar heating of the mixed layer. This latter process drove deglaciation of downwind landmasses to completion well before the end of the YDS.
语种	英语
scopus关键词	air temperature; article; Atlantic Ocean; chronology; climate change; deglaciation; heat transfer; heating; human; ice cap; macrofossil; nonhuman; priority journal; sea surface temperature; seasonal variation; summer; United Kingdom; warming; winter; Younger Dryas; Atlantic Ocean; Calibration; Geography; Ice Cover; Radiometric Dating; Scotland; Seasons; Temperature; Time Factors
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159109
作者单位	Bromley, G.R.M., Climate Change Institute, School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, United States; Putnam, A.E., Climate Change Institute, School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, United States, Lamont-Doherty Earth Observatory, Palisades, NY 10960, United States; Rademaker, K.M., Climate Change Institute, School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, United States; Lowell, T.V., Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013, United States; Schaefer, J.M., Lamont-Doherty Earth Observatory, Palisades, NY 10960, United States; Hall, B., Climate Change Institute, School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, United States; Winckler, G., Lamont-Doherty Earth Observatory, Palisades, NY 10960, United States; Birkel, S.D., Climate Change Institute, School of Earth and Climate Sciences, University of Maine, Orono, ME 04469, United States; Borns, H.W., Clima...
推荐引用方式 GB/T 7714	Bromley G.R.M.,Putnam A.E.,Rademaker K.M.,et al. Younger Dryas deglaciation of Scotland driven by warming summers[J],2014,111(17).
APA	Bromley G.R.M..,Putnam A.E..,Rademaker K.M..,Lowell T.V..,Schaefer J.M..,...&Borns H.W..(2014).Younger Dryas deglaciation of Scotland driven by warming summers.Proceedings of the National Academy of Sciences of the United States of America,111(17).
MLA	Bromley G.R.M.,et al."Younger Dryas deglaciation of Scotland driven by warming summers".Proceedings of the National Academy of Sciences of the United States of America 111.17(2014).