气候变化领域集成服务门户(CCPortal): Antarctic lakes suggest millennial reorganizations of Southern Hemisphere atmospheric and oceanic circulation

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DOI	10.1073/pnas.1007250107
	Antarctic lakes suggest millennial reorganizations of Southern Hemisphere atmospheric and oceanic circulation
	Hall B.L.; Denton G.H.; Fountain A.G.; Hendy C.H.; Henderson G.M.
发表日期	2010
ISSN	0027-8424
起始页码	21355
结束页码	21359
卷号	107 期号:50
英文摘要	The phasing of millennial-scale oscillations in Antarctica relative to those elsewhere in the world is important for discriminating among models for abrupt climate change, particularly those involving the Southern Ocean. However, records of millennial-scale variability from Antarctica dating to the last glacial maximum are rare and rely heavily on data from widely spaced ice cores, some of which show little variability through that time. Here, we present new data from closed-basin lakes in the Dry Valleys region of East Antarctica that show high-magnitude, high-frequency oscillations in surface level during the late Pleistocene synchronous with climate fluctuations elsewhere in the Southern Hemisphere. These data suggest a coherent Southern Hemisphere pattern of climate change on millennial time scales, at least in the Pacific sector, and indicate that any hypothesis concerning the origin of these events must account for synchronous changes in both high and temperate latitudes.
英文关键词	Antarctica; Dry Valleys; Lake-level change; Radiocarbon
语种	英语
scopus关键词	Antarctica; article; atmosphere; climate change; lake; Pleistocene; priority journal; sea; Southern Hemisphere; Antarctic Regions; Climate; Climate Change; Fresh Water; Geography; Ice Cover; Seawater; Temperature; Water Cycle
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/159148
作者单位	Hall, B.L., Department of Earth Sciences, Climate Change Institute, University of Maine, Orono, ME 04469, United States; Denton, G.H., Department of Earth Sciences, Climate Change Institute, University of Maine, Orono, ME 04469, United States; Fountain, A.G., Portland State University, Portland, OR 97207, United States; Hendy, C.H., Department of Chemistry, University of Waikato, Hamilton, New Zealand; Henderson, G.M., Department of Earth Sciences, University of Oxford, Oxford OX1 3PR, United Kingdom
推荐引用方式 GB/T 7714	Hall B.L.,Denton G.H.,Fountain A.G.,et al. Antarctic lakes suggest millennial reorganizations of Southern Hemisphere atmospheric and oceanic circulation[J],2010,107(50).
APA	Hall B.L.,Denton G.H.,Fountain A.G.,Hendy C.H.,&Henderson G.M..(2010).Antarctic lakes suggest millennial reorganizations of Southern Hemisphere atmospheric and oceanic circulation.Proceedings of the National Academy of Sciences of the United States of America,107(50).
MLA	Hall B.L.,et al."Antarctic lakes suggest millennial reorganizations of Southern Hemisphere atmospheric and oceanic circulation".Proceedings of the National Academy of Sciences of the United States of America 107.50(2010).