Distribution of oxygen stable isotope ratio along 115°E section across the continental slope of the Antarctica - Collections

＜departmental bulletin paper＞
Distribution of oxygen stable isotope ratio along 115°E section across the continental slope of the Antarctica

Creator	Creator Name 青木, 茂 Aoki, Shigeru アオキ, シゲル Affiliation Affiliation Name 北海道大学低温科学研究所 Institute of Low Temperature Science, Hokkaido University
Language	Japanese
Publisher	Research Institute for Applied Mechanics, Kyushu University
Publisher	九州大学応用力学研究所
Date	2008-09
Source Title	Reports of Research Institute for Applied Mechanics, Kyushu University
Vol	135
First Page	89
Last Page	93
Publication Type	Version of Record
Access Rights	open access
JaLC DOI	https://doi.org/10.15017/14189
Abstract	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 dilu...ting 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.show more

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