Vertical thermal structure history in the western subtropical North Pacific since the Last Glacial Maximum

DOI PDF Web Site 被引用文献10件 参考文献40件 オープンアクセス
  • Takuya Sagawa
    Center for Advanced Marine Core Research; Kochi University; Nankoku Japan
  • Yusuke Yokoyama
    Atmosphere and Ocean Research Institute; University of Tokyo; Kashiwa Japan
  • Minoru Ikehara
    Center for Advanced Marine Core Research; Kochi University; Nankoku Japan
  • Michinobu Kuwae
    Senior Research Fellow Center; Ehime University; Matsuyama Japan

書誌事項

タイトル別名
  • SUBTROPICAL NP TEMPERATURE SINCE LGM
公開日
2011-01-11
資源種別
journal article
権利情報
  • http://doi.wiley.com/10.1002/tdm_license_1.1
DOI
  • 10.1029/2010gl045827
公開者
American Geophysical Union (AGU)

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説明

[1] Variations in sea surface temperature (SST) and vertical thermal structure in the western subtropical North Pacific, which has the largest air-sea heat flux of the world's oceans, provide insights into the mechanisms of climate change related to air-sea interactions. Here, we present planktonic δ18O and Mg/Ca records from the western subtropical gyre of the North Pacific spanning the last 30 kyrs. The results indicate that subtropical SSTs were approximately 3°C lower during the last glacial than in the Holocene interglacial, indicating that glacial cooling occurred uniformly in the low to mid-latitudes of the western North Pacific. A decrease in intermediate depth temperatures at the late glacial suggests that the formation and/or advection of the subtropical mode water was enhanced due to a strong East Asian winter monsoon. The results suggest that the change in the thermal structure of the subtropical gyre was related to changes in East Asian monsoon activity.

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