气候变化领域集成服务门户(CCPortal): Northern hemisphere controls on tropical southeast African climate during the past 60,000 years

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DOI	10.1126/science.1160485
	Northern hemisphere controls on tropical southeast African climate during the past 60,000 years
	Tierney J.E.; Russell J.M.; Huang Y.; Sinninghe Damsté J.S.; Hopmans E.C.; Cohen A.S.
发表日期	2008
ISSN	0036-8075
起始页码	252
结束页码	255
卷号	322 期号:5899
英文摘要	The processes that control climate in the tropics are poorly understood. We applied compound-specific hydrogen isotopes (δD) and the TEX86 (tetraether index of 86 carbon atoms) temperature proxy to sediment cores from Lake Tanganyika to independently reconstruct precipitation and temperature variations during the past 60,000 years. Tanganyika temperatures follow Northern Hemisphere insolation and indicate that warming in tropical southeast Africa during the last glacial termination began to increase ∼3000 years before atmospheric carbon dioxide concentrations. δD data show that this region experienced abrupt changes in hydrology coeval with orbital and millennial-scale events recorded in Northern Hemisphere monsoonal climate records. This implies that precipitation in tropical southeast Africa is more strongly controlled by changes in Indian Ocean sea surface temperatures and the winter Indian monsoon than by migration of the Intertropical Convergence Zone.
英文关键词	carbon; carbon dioxide; hydrogen; isotope; carbon dioxide; core analysis; hydrogen isotope; intertropical convergence zone; Last Glacial; Northern Hemisphere; paleoclimate; precipitation assessment; reconstruction; sea surface temperature; temperature gradient; article; atmospheric deposition; climate change; glaciation; history; Indian Ocean; intertropical convergence zone; lake ecosystem; nonhuman; precipitation; priority journal; sea surface temperature; sedimentology; South Africa; temperature measurement; tropic climate; warming; weather; winter; Africa; East African Lakes; Lake Tanganyika; Sub-Saharan Africa
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/245754
作者单位	Department of Geological Sciences, Brown University, Providence, RI 02912, United States; Department of Marine Organic Biogeochemistry, Royal Netherlands Institute for Sea Research (NIOZ), 1790 AB Den Burg, Netherlands; Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States
推荐引用方式 GB/T 7714	Tierney J.E.,Russell J.M.,Huang Y.,et al. Northern hemisphere controls on tropical southeast African climate during the past 60,000 years[J],2008,322(5899).
APA	Tierney J.E.,Russell J.M.,Huang Y.,Sinninghe Damsté J.S.,Hopmans E.C.,&Cohen A.S..(2008).Northern hemisphere controls on tropical southeast African climate during the past 60,000 years.Science,322(5899).
MLA	Tierney J.E.,et al."Northern hemisphere controls on tropical southeast African climate during the past 60,000 years".Science 322.5899(2008).