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DOI | 10.1126/science.1254961 |
Greenland temperature response to climate forcing during the last deglaciation | |
Buizert C.; Gkinis V.; Severinghaus J.P.; He F.; Lecavalier B.S.; Kindler P.; Leuenberger M.; Carlson A.E.; Vinther B.; Masson-Delmotte V.; White J.W.C.; Liu Z.; Otto-Bliesner B.; Brook E.J. | |
发表日期 | 2014 |
ISSN | 0036-8075 |
起始页码 | 1177 |
结束页码 | 1180 |
卷号 | 345期号:6201 |
英文摘要 | Greenland ice core water isotopic composition (δ18O) provides detailed evidence for abrupt climate changes but is by itself insufficient for quantitative reconstruction of past temperatures and their spatial patterns. We investigate Greenland temperature evolution during the last deglaciation using independent reconstructions from three ice cores and simulations with a coupled ocean-atmosphere climate model. Contrary to the traditional δ18O interpretation, the Younger Dryas period was 4.5° ± 2°C warmer than the Oldest Dryas, due to increased carbon dioxide forcing and summer insolation. The magnitude of abrupt temperature changes is larger in central Greenland (9° to 14°C) than in the northwest (5° to 9°C), fingerprinting a North Atlantic origin. Simulated changes in temperature seasonality closely track changes in the Atlantic overturning strength and support the hypothesis that abrupt climate change is mostly a winter phenomenon. © 2014, American Association for the Advancement of Science. All rights reserved. |
英文关键词 | carbon dioxide; ice; oxygen; air-sea interaction; carbon dioxide; climate change; climate modeling; ice core; last deglaciation; numerical model; paleotemperature; reconstruction; spatial analysis; temperature effect; Article; atmosphere; climate change; deglaciation; environmental temperature; evolution; Greenland; priority journal; sea; seasonal variation; simulation; summer; sunlight; winter; Younger Dryas; article; climate change; computer simulation; freezing; ice cover; temperature; theoretical model; Arctic; Atlantic Ocean; Atlantic Ocean (North); Greenland; Greenland Ice Sheet; Climate Change; Computer Simulation; Freezing; Greenland; Ice Cover; Models, Theoretical; Oxygen Isotopes; 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/243188 |
作者单位 | College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, United States; Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Denmark; Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO 80309, United States; Scripps Institution of Oceanography, University of California-San Diego, San Diego, CA 92093, United States; Center for Climatic Research, Nelson Institute for Environmental Studies, University of Wisconsin, Madison, WI 53706, United States; Department of Physics and Physical Oceanography, Memorial University, St. John's, Canada; Division of Climate and Environmental Physics, Physics Institute and Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland; Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre Simon Laplace (UMR CEA-CNRS-UVSQ 8212), Gif-sur-Yvette, France; Laboratory for Climate and Ocean-Atmosphere Studies, Peking University, Beijing, 100871, China; C... |
推荐引用方式 GB/T 7714 | Buizert C.,Gkinis V.,Severinghaus J.P.,et al. Greenland temperature response to climate forcing during the last deglaciation[J],2014,345(6201). |
APA | Buizert C..,Gkinis V..,Severinghaus J.P..,He F..,Lecavalier B.S..,...&Brook E.J..(2014).Greenland temperature response to climate forcing during the last deglaciation.Science,345(6201). |
MLA | Buizert C.,et al."Greenland temperature response to climate forcing during the last deglaciation".Science 345.6201(2014). |
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