| Highly variable El Niño-Southern Oscillation throughout the Holocene. | |
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MedLine Citation:
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PMID: 23288537 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The El Niño-Southern Oscillation (ENSO) drives large changes in global climate patterns from year to year, yet its sensitivity to continued anthropogenic greenhouse forcing is uncertain. We analyzed fossil coral reconstructions of ENSO spanning the past 7000 years from the Northern Line Islands, located in the center of action for ENSO. The corals document highly variable ENSO activity, with no evidence for a systematic trend in ENSO variance, which is contrary to some models that exhibit a response to insolation forcing over this same period. Twentieth-century ENSO variance is significantly higher than average fossil coral ENSO variance but is not unprecedented. Our results suggest that forced changes in ENSO, whether natural or anthropogenic, may be difficult to detect against a background of large internal variability. |
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Authors:
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Kim M Cobb; Niko Westphal; Hussein R Sayani; Jordan T Watson; Emanuele Di Lorenzo; H Cheng; R L Edwards; Christopher D Charles |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 339 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-01-04 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 67-70 Citation Subset: IM |
Affiliation:
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School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA. kcobb@eas.gatech.edu |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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