气候变化领域集成服务门户(CCPortal): Interhemispheric ice-sheet synchronicity during the last glacial maximum

CCPortal

DOI	10.1126/science.1209299
	Interhemispheric ice-sheet synchronicity during the last glacial maximum
	Weber M.E.; Clark P.U.; Ricken W.; Mitrovica J.X.; Hostetler S.W.; Kuhn G.
发表日期	2011
ISSN	0036-8075
起始页码	1265
结束页码	1269
卷号	334 期号:6060
英文摘要	The timing of the last maximum extent of the Antarctic ice sheets relative to those in the Northern Hemisphere remains poorly understood. We develop a chronology for the Weddell Sea sector of the East Antarctic Ice Sheet that, combined with ages from other Antarctic ice-sheet sectors, indicates that the advance to and retreat from their maximum extent was within dating uncertainties synchronous with most sectors of Northern Hemisphere ice sheets. Surface climate forcing of Antarctic mass balance would probably cause an opposite response, whereby a warming climate would increase accumulation but not surface melting. Our new data support teleconnections involving sea-level forcing from Northern Hemisphere ice sheets and changes in North Atlantic deep-water formation and attendant heat flux to Antarctic grounding lines to synchronize the hemispheric ice sheets.
英文关键词	chronology; climate forcing; glacier mass balance; heat flux; ice sheet; Last Glacial Maximum; mass balance; melting; Northern Hemisphere; synchrony; teleconnection; Antarctica; article; climate change; deglaciation; glaciation; ice sheet; Northern Hemisphere; priority journal; Antarctica; Atlantic Ocean; Atlantic Ocean (North); East Antarctica; Southern Ocean; Weddell Sea
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/245984
作者单位	Institute of Geology and Mineralogy, University of Cologne, Zuelpicher Strasse 49a, 50674 Cologne, Germany; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, United States; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, United States; U.S. Geological Survey, College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, United States; Alfred Wegener Institute for Polar and Marine Research, Helmholtz Association, Am Alten Hafen 26, 27568 Bremerhaven, Germany
推荐引用方式 GB/T 7714	Weber M.E.,Clark P.U.,Ricken W.,et al. Interhemispheric ice-sheet synchronicity during the last glacial maximum[J],2011,334(6060).
APA	Weber M.E.,Clark P.U.,Ricken W.,Mitrovica J.X.,Hostetler S.W.,&Kuhn G..(2011).Interhemispheric ice-sheet synchronicity during the last glacial maximum.Science,334(6060).
MLA	Weber M.E.,et al."Interhemispheric ice-sheet synchronicity during the last glacial maximum".Science 334.6060(2011).