Penetration of 90Sr and 137Cs in deep layers of the Pacific and vertical diffusion rate of deep water

• 三宅 泰雄

  Meteorological Research Institute

• 猿橋 勝子

  Meteorological Research Institute

• 葛城 幸雄

  Meteorological Research Institute

• 金沢 照子

  Meteorological Research Institute

書誌事項

タイトル別名

• Penetration of <SUP>90</SUP>Sr and <SUP>137</SUP>Cs in deep layers of the Pacific and vertical diffusion rate of deep water

抄録

Vertical penetration of Sr-90 and Cs-137 down to 5, 000m depth was confirmed in the western North Pacific. Surface values of these radionuclides range from 0.6 to 3.1 μμC/L for Sr-90 and from 0.8 to 4.8 μμC/L for Cs-137, while at 5, 000m depth both nuclides of about 0.1 μμC/L were determined. From the vertical variation in the concentration of radio-nuclides, the vertical diffusion coefficient from 200 m to 4, 000m depth was calculated and the value of 200 was obtained. Time required to attain practically a homogeneous vertical distribution of substances which is put in the western part of the north Pacific Ocean would be a few hundred years.

収録刊行物

• Journal of Radiation Research

  Journal of Radiation Research 3 (3), 141-147, 1962

  Journal of Radiation Research 編集委員会

キーワード

• Health, Toxicology and Mutagenesis
• Radiology, Nuclear Medicine and imaging
• Radiation

詳細情報

• CRID: 1390001205216750848
• NII論文ID: 110002322695
• NII論文ID: 30035718469
• NII書誌ID: AA00705792
• DOI: 10.1269/jrr.3.141
• ISSN: 13499157
• ISSN: 04493060
• ISSN: http://id.crossref.org/issn/04493060
• Web Site: http://academic.oup.com/jrr/article-pdf/3/3-4/141/6375956/jrr-3-141.pdf
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10907880
• Web Site: https://search.jamas.or.jp/link/ui/1964030287
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • NDL-Digital
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可