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首页> 外文期刊>Paleoceanography >Annual REE Signal of East Asian Winter Monsoon in Surface Seawater in the Northern South China Sea: Evidence From a Century-Long Porites Coral Record
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Annual REE Signal of East Asian Winter Monsoon in Surface Seawater in the Northern South China Sea: Evidence From a Century-Long Porites Coral Record

机译：南海北部地面海水中东亚冬季季风的年度REE信号：来自一个世纪长的Porites珊瑚纪录的证据

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摘要

The East Asian winter monsoon (EAWM) plays a significant role in the Asian climate system. However, the scarcity of direct high-resolution records, especially those covering recent centuries, limits our understanding of monsoonal dynamics. Here we present a reconstruction of annual EAWM strength over the past century and a half using a Porites coral from Yongxing Island in the northern South China Sea (SCS), where the variations in the rare earth element (REE) parameters in surface seawater are dominantly controlled by the input of aeolian dust. Our record indicates that the EAWM strength weakly increased overall during the latter half of the nineteenth century but decreased during the twentieth century, especially after ~1950 Common Era. Additionally, during the past century and a half, the relationship between the EAWM and the East Asian summer monsoon, as recorded in speleothems, varied temporally and depended on the strength of the EAWM. Our findings suggest that the REE proxy of corals from the offshore SCS can be applied as an excellent indicator of the winter monsoon strength.
机译：东亚冬季季风（EAWM）在亚洲气候系统中起着重要作用。然而，直接高分辨率记录的稀缺性，尤其是近几个世纪的缺乏，限制了我们对季风动态的理解。在这里，我们在过去的世纪中，在过去的世纪中重建了年度EAWM实力，并使用来自南海北海（SCS）的永兴岛屿的Porites珊瑚，其中稀土元素（REE）参数在地表海水中的变化主要是占主导地位的由Aeolian粉尘的输入控制。我们的纪录表明，在十九世纪后半个世纪人的一半，而且在二十世纪下降，eAWM力量弱势增加，特别是在〜1950年常见时代之后。此外，在过去的一世纪和半个世纪中，EAWM与东亚夏季季风的关系，如斯派比斯所记录的，在时间上变化，并取决于EAWM的强度。我们的研究结果表明，海上SCS的珊瑚的REE代理可作为冬季季风强度的优秀指标。

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  • 来源
    《Paleoceanography》 |2018年第2期|共11页
  • 作者

    Wei Jiang; Kefu Yu; Yinxian Song; Jian-xin Zhao; Yue-xing Feng; Yinghui Wang; Shendong Xu; Tao Han;

  • 作者单位

    Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea Coral Reef Research Center of China School of Marine Sciences Guangxi University Nanning China;

    South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou China;

    College of Environment and Engineering Hohai University Nanjing China;

    Radiogenic Isotope Facility School of Earth and Environmental Sciences University of Queensland Brisbane Queensland Australia;

    Radiogenic Isotope Facility School of Earth and Environmental Sciences University of Queensland Brisbane Queensland Australia;

    Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea Coral Reef Research Center of China School of Marine Sciences Guangxi University Nanning China;

    Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea Coral Reef Research Center of China School of Marine Sciences Guangxi University Nanning China;

    South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋学;
  • 关键词

    Annual REE Signal; East Asian Winter Monsoon; Surface Seawater;

    机译：年度REE信号;东亚冬季季风;表面海水;

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