南極陸棚斜面横断東経115度ラインにおける酸素安定同位体比分布

• 青木 茂

  北海道大学低温科学研究所

書誌事項

タイトル別名

• Distribution of oxygen stable isotope ratio along 115°E section across the continental slope of the Antarctica
• ナンキョク リクダナ シャメン オウダン トウケイ 115ド ライン ニ オケル サンソ アンテイ ドウイタイヒ ブンプ

抄録

Distribution of the oxygen isotope ratio δ^18 O was derived for the 115 ﾟE section across the continental slope of the Antarctica. Distinctly depleted δ^18 O was found on the shelf, revealing the diluting effect of glacial melt water. Salt budget and δ^18 O tendency in the seasonal mixed layer indicated that the near surface freshening was consistent with that due to the sea ice melt and the freshwater budget gave realistic thickness of the melted sea ice in this region, δ^18 O of the Adelie Land Bottom Water (ADLBW) was derived as -0.22‰, which was similar to that found for the bottom water in the Princess Elizabeth Trough (PETBW). This fact supports the idea of the dominant eastern source of the PETBW. The oxygen isotope data are important as a reference baseline for future oceanographic and climate variability, and hence sustained observations are crucial.

収録刊行物

• 九州大学応用力学研究所所報

  九州大学応用力学研究所所報 135 89-93, 2008-09

  九州大学応用力学研究所

キーワード

• Oxygen isotope
• δ^18 O
• Antarctic Bottom Water
• sea ice
• Southern Ocean
• WHP I9

詳細情報

• CRID: 1390572174716669824
• NII論文ID: 120001219856
• NII書誌ID: AA11459359
• DOI: 10.15017/14189
• HANDLE: 2324/14189
• NDL書誌ID: 9762689
• ISSN: 13455664
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9762689
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用可