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    Recent enhancement of central Pacific El Nino variability relative to last eight centuries

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    Author
    Liu, Yu
    Cobb, Kim M.
    Song, Huiming
    Li, Qiang
    Li, Ching-Yao
    Nakatsuka, Takeshi
    An, Zhisheng
    Zhou, Weijian
    Cai, Qiufang
    Li, Jinbao cc
    Leavitt, Steven W.
    Sun, Changfeng
    Mei, Ruochen
    Shen, Chuan-Chou
    Chan, Ming-Hsun
    Sun, Junyan
    Yan, Libin
    Lei, Ying
    Ma, Yongyong
    Li, Xuxiang
    Chen, Deliang cc
    Linderholm, Hans W. cc
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    Affiliation
    Univ Arizona, Tree Ring Res Lab
    Issue Date
    2017-05-30
    
    Metadata
    Show full item record
    Publisher
    NATURE PUBLISHING GROUP
    Citation
    Recent enhancement of central Pacific El Nino variability relative to last eight centuries 2017, 8:15386 Nature Communications
    Journal
    Nature Communications
    Rights
    This work is licensed under a Creative Commons Attribution 4.0 International License.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The far-reaching impacts of central Pacific El Nino events on global climate differ appreciably from those associated with eastern Pacific El Nino events. Central Pacific El Nino events may become more frequent in coming decades as atmospheric greenhouse gas concentrations rise, but the instrumental record of central Pacific sea-surface temperatures is too short to detect potential trends. Here we present an annually resolved reconstruction of NINO4 sea-surface temperature, located in the central equatorial Pacific, based on oxygen isotopic time series from Taiwan tree cellulose that span from 1190 AD to 2007 AD. Our reconstruction indicates that relatively warm Nino4 sea-surface temperature values over the late twentieth century are accompanied by higher levels of interannual variability than observed in other intervals of the 818-year-long reconstruction. Our results imply that anthropogenic greenhouse forcing may be driving an increase in central Pacific El Nino-Southern Oscillation variability and/or its hydrological impacts, consistent with recent modelling studies.
    ISSN
    2041-1723
    PubMed ID
    28555638
    DOI
    10.1038/ncomms15386
    Version
    Final published version
    Sponsors
    973 Program [2013CB955900]; Key Project of IEECAS; NOAA C2C2 Award [NA11OAR4310165]; NSF [OCE-1446274, OCE-1446343]; Japanese Society for the Promotion of Science [23242047, 26244049]; National Taiwan University [105R7625]; [QYZDJ-SSW-DQC021]; [NSFC41371221]; [NSFC41630531]; [CASXDA05080202]; [104-2119-M-002-003]
    Additional Links
    http://www.nature.com/doifinder/10.1038/ncomms15386
    ae974a485f413a2113503eed53cd6c53
    10.1038/ncomms15386
    Scopus Count
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    UA Faculty Publications

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