气候变化领域集成服务门户(CCPortal): Southern hemisphere and deep-sea warming led deglacial atmospheric CO 2 rise and tropical warming

CCPortal

DOI	10.1126/science.1143791
	Southern hemisphere and deep-sea warming led deglacial atmospheric CO 2 rise and tropical warming
	Stott L.; Timmermann A.; Thunell R.
发表日期	2007
ISSN	0036-8075
起始页码	435
结束页码	438
卷号	318 期号:5849
英文摘要	Establishing what caused Earth's largest climatic changes in the past requires a precise knowledge of both the forcing and the regional responses. We determined the chronology of high- and low-latitude climate change at the last glacial termination by radiocarbon dating benthic and planktonic foraminiferal stable isotope and magnesium/calcium records from a marine core collected in the western tropical Pacific. Deep-sea temperatures warmed by ∼2°C between 19 and 17 thousand years before the present (ky B.P.), leading the rise in atmospheric CO2 and tropical-surface-ocean warming by ∼1000 years. The cause of this deglacial deep-water warming does not lie within the tropics, nor can its early onset between 19 and 17 ky B.P. be attributed to CO2 forcing. Increasing austral-spring insolation combined with sea-ice albedo feedbacks appear to be the key factors responsible for this warming.
英文关键词	calcium; carbon 14; isotope; magnesium; atmospheric chemistry; benthic foraminifera; carbon dioxide; climate change; deep sea; deglaciation; Last Glacial; planktonic foraminifera; sea ice; Southern Hemisphere; stable isotope; tropical environment; warming; air temperature; article; atmosphere; benthos; carbon dioxide tension; chronology; climate change; deep sea; glacier; land biome; latitude; marine environment; planktonic foraminifera; priority journal; southern hemisphere; temperature; tropical warming; warming
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/245641
作者单位	Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, United States; International Pacific Research Center (IPRC), School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, HI 96822, United States; Department of Geological Sciences, University of South Carolina, Columbia, SC 29208, United States
推荐引用方式 GB/T 7714	Stott L.,Timmermann A.,Thunell R.. Southern hemisphere and deep-sea warming led deglacial atmospheric CO 2 rise and tropical warming[J],2007,318(5849).
APA	Stott L.,Timmermann A.,&Thunell R..(2007).Southern hemisphere and deep-sea warming led deglacial atmospheric CO 2 rise and tropical warming.Science,318(5849).
MLA	Stott L.,et al."Southern hemisphere and deep-sea warming led deglacial atmospheric CO 2 rise and tropical warming".Science 318.5849(2007).