气候变化领域集成服务门户(CCPortal): Tropical ocean temperatures over the past 3.5 million years

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DOI	10.1126/science.1185435
	Tropical ocean temperatures over the past 3.5 million years
	Herbert T.D.; Peterson L.C.; Lawrence K.T.; Liu Z.
发表日期	2010
ISSN	0036-8075
起始页码	1530
结束页码	1534
卷号	328 期号:5985
英文摘要	Determining the timing and amplitude of tropical sea surface temperature (SST) change is an important part of solving the puzzle of the Plio-Pleistocene ice ages. Alkenone-based tropical SST records from the major ocean basins show coherent glacial-interglacial temperature changes of 1° to 3°C that align with (but slightly lead) global changes in ice volume and deep ocean temperature over the past 3.5 million years. Tropical temperatures became tightly coupled with benthic δ18O and orbital forcing after 2.7 million years. We interpret the similarity of tropical SST changes, in dynamically dissimilar regions, to reflect "top-down" forcing through the atmosphere. The inception of a strong carbon dioxide-greenhouse gas feedback and amplification of orbital forcing at ∼2.7 million years ago connected the fate of Northern Hemisphere ice sheets with global ocean temperatures since that time. Copyright Science 2010 by the American Association for the Advancement of Science; all rights reserved.
英文关键词	carbon dioxide; alkenone; amplification; amplitude; carbon dioxide; deep sea; glacial-interglacial cycle; global change; greenhouse gas; ice sheet; Northern Hemisphere; ocean basin; orbital forcing; Pliocene-Pleistocene boundary; sea surface temperature; sedimentary structure; temperature gradient; article; atmosphere; glacial period; greenhouse gas; hemisphere; ice age; interglacial; Pleistocene; priority journal; sea surface 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/243999
作者单位	Department of Geological Sciences, Brown University, Providence, RI 02912, United States; Environmental Studies, Luther College, 700 College Drive, Decorah, IA 52101, United States; Department of Geology and Environmental Geosciences, Lafayette College, Easton, PA 18042, United States; Department of Earth Sciences, University of Hong Kong, Pokefulam Road, Hong Kong, Hong Kong
推荐引用方式 GB/T 7714	Herbert T.D.,Peterson L.C.,Lawrence K.T.,et al. Tropical ocean temperatures over the past 3.5 million years[J],2010,328(5985).
APA	Herbert T.D.,Peterson L.C.,Lawrence K.T.,&Liu Z..(2010).Tropical ocean temperatures over the past 3.5 million years.Science,328(5985).
MLA	Herbert T.D.,et al."Tropical ocean temperatures over the past 3.5 million years".Science 328.5985(2010).