气候变化领域集成服务门户(CCPortal): Hydrologic impacts of past shifts of Earth's thermal equator offer insight into those to be produced by fossil fuel CO2

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DOI	10.1073/pnas.1301855110
	Hydrologic impacts of past shifts of Earth's thermal equator offer insight into those to be produced by fossil fuel CO2
	Broecker W.S.; Putnam A.E.
发表日期	2013
ISSN	0027-8424
起始页码	16710
结束页码	16715
卷号	110 期号:42
英文摘要	Major changes in global rainfall patterns accompanied a northward shift of Earth's thermal equator at the onset of an abrupt climate change 14.6 kya. This northward pull of Earth's wind and rain belts stemmed from disintegration of North Atlantic winter sea ice cover, which steepened the interhemispheric meridional temperature gradient. A southward migration of Earth's thermal equator may have accompanied the more recent Medieval Warm to Little Ice Age climate transition in the Northern Hemisphere. As fossil fuel CO2 warms the planet, the continents of the Northern Hemisphere are expected to warm faster than the Southern Hemisphere oceans. Therefore, we predict that a northward shift of Earth's thermal equator, initiated by an increased interhemispheric temperature contrast, may well produce hydrologic changes similar to those that occurred during past Northern Hemisphere warm periods. If so, the American West, the Middle East, and southern Amazonia will become drier, and monsoonal Asia, Venezuela, and equatorial Africa will become wetter. Additional paleoclimate data should be acquired and model simulations should be conducted to evaluate the reliability of this analog.
英文关键词	Deglaciation; Global warming; Hydroclimate; Intertropical Convergence Zone
语种	英语
scopus关键词	carbon dioxide; fossil fuel; Africa; Asia; astronomy; climate change; Little Ice Age; Middle East; Northern Hemisphere; paleoclimate; prediction; priority journal; review; sea ice; simulation; Southern Hemisphere; temperature; Venezuela; water cycle; winter; deglaciation; global warming; hydroclimate; Intertropical Convergence Zone; Carbon Dioxide; Climate Change; Fossil Fuels; Models, Theoretical; Oceans and Seas
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159115
作者单位	Broecker, W.S., Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; Putnam, A.E., Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States, Climate Change Institute, University of Maine, Orono, ME 04469, United States
推荐引用方式 GB/T 7714	Broecker W.S.,Putnam A.E.. Hydrologic impacts of past shifts of Earth's thermal equator offer insight into those to be produced by fossil fuel CO2[J],2013,110(42).
APA	Broecker W.S.,&Putnam A.E..(2013).Hydrologic impacts of past shifts of Earth's thermal equator offer insight into those to be produced by fossil fuel CO2.Proceedings of the National Academy of Sciences of the United States of America,110(42).
MLA	Broecker W.S.,et al."Hydrologic impacts of past shifts of Earth's thermal equator offer insight into those to be produced by fossil fuel CO2".Proceedings of the National Academy of Sciences of the United States of America 110.42(2013).