Trace of the recent deep water formation in the Japan Sea Deduced from historical <sup>137</sup>Cs data

Takashi Miyao, Katsumi Hirose, Michio Aoyama, Yasuhito Igarashi

doi:10.1029/2000gl011406

Trace of the recent deep water formation in the Japan Sea Deduced from historical <sup>137</sup>Cs data

DOI Web Site Web Site 被引用文献3件

書誌事項

公開日: 2000-11-15

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/2000gl011406

公開者: American Geophysical Union (AGU)

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説明

<jats:p>Historical <jats:sup>137</jats:sup>Cs data obtained in the Japan Sea were statistically analyzed. <jats:sup>137</jats:sup>Cs concentrations in the upper 200 m layer decreased almost monotonously after 1970's, while those in the deeper layers below 1500 m depth sharply increased during the period of 1985–1995, accompanied with the increase of the <jats:sup>137</jats:sup>Cs inventory. It follows that considerable amount of <jats:sup>137</jats:sup>Cs‐rich surface water was conveyed into the deep layers after 1985, suggesting that the deep water formation occurred. The spatial distribution of <jats:sup>137</jats:sup>Cs in the deep layers in 1990's indicates that the recent deep water formation occurred in the northwestern area of the Japan Sea, around Peter the Great Bay.</jats:p>