气候变化领域集成服务门户(CCPortal): Paleoclimate: Deep-sea temperature and circulation changes at the Paleocene-Eocene Thermal Maximum

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DOI	10.1126/science.1109202
	Paleoclimate: Deep-sea temperature and circulation changes at the Paleocene-Eocene Thermal Maximum
	Tripati A.; Elderfield H.
发表日期	2005
ISSN	0036-8075
起始页码	1894
结束页码	1898
卷号	308 期号:5730
英文摘要	A rapid increase in greenhouse gas levels is thought to have fueled global warming at the Paleocene-Eocene Thermal Maximum (PETM), Foraminiferal magnesium/calcium ratios indicate that bottom waters warmed by 4° to 5°C, similar to tropical and subtropical surface ocean waters, implying no amplification of warming in high-latitude regions of deep-water formation under ice-free conditions. Intermediate waters warmed before the carbon isotope excursion, in association with downwelling in the North Pacific and reduced Southern Ocean convection, supporting changing circulation as the trigger for methane hydrate release. A switch to deep convection in the North Pacific at the PETM onset could have amplified and sustained warming.
英文关键词	Greenhouse effect; Heat convection; Ocean currents; Sea ice; Surface waters; High-latitude regions; Ice-free conditions; Methane hydrate; Paleocene-Eocene thermal maximum (PETM); Climate change; calcium; carbon; magnesium; methane; sea water; surface water; paleoceanography; Paleocene-Eocene boundary; article; climate change; concentration (parameters); Eocene; greenhouse effect; greenhouse gas; latitude; oxidation; Pacific Ocean; Paleocene; parameter; priority journal; sea; sediment; thermodynamics; water temperature
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/245779
作者单位	Department of Earth Sciences, University of Cambridge, Downing Street, United Kingdom
推荐引用方式 GB/T 7714	Tripati A.,Elderfield H.. Paleoclimate: Deep-sea temperature and circulation changes at the Paleocene-Eocene Thermal Maximum[J],2005,308(5730).
APA	Tripati A.,&Elderfield H..(2005).Paleoclimate: Deep-sea temperature and circulation changes at the Paleocene-Eocene Thermal Maximum.Science,308(5730).
MLA	Tripati A.,et al."Paleoclimate: Deep-sea temperature and circulation changes at the Paleocene-Eocene Thermal Maximum".Science 308.5730(2005).