气候变化领域集成服务门户(CCPortal): A Transient Rise in Tropical Sea Surface Temperature during the Paleocene-Eocene Thermal Maximum

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DOI	10.1126/science.1090110
	A Transient Rise in Tropical Sea Surface Temperature during the Paleocene-Eocene Thermal Maximum
	Zachos J.C.; Wara M.W.; Bohaty S.; Delaney M.L.; Petrizzo M.R.; Brill A.; Bralower T.J.; Premoli-Silva I.
发表日期	2003
ISSN	0036-8075
起始页码	1551
结束页码	1554
卷号	302 期号:5650
英文摘要	The Paleocene-Eocene Thermal Maximum (PETM) has been attributed to a rapid rise in greenhouse gas levels. If so, warming should have occurred at all latitudes, although amplified toward the poles. Existing records reveal an increase in high-latitude sea surface temperatures (SSTs) (8° to 10°C) and in bottom water temperatures (4° to 5°C). To date, however, the character of the tropical SST response during this event remains unconstrained. Here we address this deficiency by using paired oxygen isotope and minor element (magnesium/calcium) ratios of planktonic foraminifera from a tropical Pacific core to estimate changes in SST. Using mixed-layer foraminifera, we found that the combined proxies imply a 4° to 5°C rise in Pacific SST during the PETM. These results would necessitate a rise in atmospheric pCO 2 to levels three to four times as high as those estimated for the late Pateocene.
英文关键词	Carbon dioxide; Greenhouses; Isotopes; Sea level; Greenhouse gases; Sea surface temperatures (SST); Oceanography; oxygen; latitude; Paleogene; planktonic foraminifera; proxy climate record; sea surface temperature; article; comparative study; eocene; foraminifer; greenhouse effect; paleocene; priority journal; sea surface temperature; water temperature; Foraminifera
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/246127
作者单位	Earth Sciences Department, University of California, Santa Cruz, CA 95064, United States; Dipto. di Sci. Terra Ardito Desio, Universita' degli Studi di Milano, Via Mangiagalli 34, Milano 20133, Italy; Department of Geological Sciences, University of North Carolina, Chapel Hill, NC 27599, United States; Department of Geosciences, Pennsylvania State University, University Park, PA 16802, United States
推荐引用方式 GB/T 7714	Zachos J.C.,Wara M.W.,Bohaty S.,et al. A Transient Rise in Tropical Sea Surface Temperature during the Paleocene-Eocene Thermal Maximum[J],2003,302(5650).
APA	Zachos J.C..,Wara M.W..,Bohaty S..,Delaney M.L..,Petrizzo M.R..,...&Premoli-Silva I..(2003).A Transient Rise in Tropical Sea Surface Temperature during the Paleocene-Eocene Thermal Maximum.Science,302(5650).
MLA	Zachos J.C.,et al."A Transient Rise in Tropical Sea Surface Temperature during the Paleocene-Eocene Thermal Maximum".Science 302.5650(2003).