日本近海の海水温変動と北半球気候変動との共時性 Synchronous Td'-derived SSTs (℃) off Japan with Climatic Events in the Northern Hemisphere

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 Annual sea-surface temperatures (SSTs) (°C) were derived from a regression analysis between the ratio of warm- and cold-water diatoms (<i>Td'</i> ratio) in 123 surface sediment samples around the Japanese Islands and measured mean annual SSTs (°C) at the core sites. The cross spectra between the atmospheric residual <sup>14</sup>C (‰), and annual SSTs (°C) of cores DGC-6 (Japan Sea) and MD01-2421 (off Kashima), respectively, consist of five dominant periods: 6000, 2400, 1600, 950, and 700 years.<br> The amplitude of fluctuations of annual SSTs (°C) in the millennial time scale during the Holocene after the Younger Dryas is within 6-10°C. Periodic variations of annual SSTs (°C) can be correlated within error to abrupt climatic events reported from different paleoclimatic proxy records in many regions of the Northern Hemisphere. The cooling time of annual SSTs (°C) also corresponds to the triple events of high <sup>14</sup>C values in the atmospheric residual <sup>14</sup>C records, as well as the Bond events in the North Atlantic.

収録刊行物

  • 地學雜誌

    地學雜誌 119(3), 489-509, 2010-06-25

    Tokyo Geographical Society

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各種コード

  • NII論文ID(NAID)
    10030369415
  • NII書誌ID(NCID)
    AN00322536
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    0022135X
  • NDL 記事登録ID
    10757682
  • NDL 雑誌分類
    ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z15-169
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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