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Age distribution of Antarctic Bottom Water off Cape Darnley, East Antarctica, estimated using chlorofluorocarbon and sulfur hexafluoride
https://oacis.repo.nii.ac.jp/records/2576
https://oacis.repo.nii.ac.jp/records/2576f9716dd7-9a9b-48ee-93e4-beddaac69f46
Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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公開日 | 2022-11-21 | |||||||||||||||
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タイトル | Age distribution of Antarctic Bottom Water off Cape Darnley, East Antarctica, estimated using chlorofluorocarbon and sulfur hexafluoride | |||||||||||||||
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言語 | eng | |||||||||||||||
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主題 | Marine chemistry, Ocean sciences, Physical oceanography | |||||||||||||||
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資源タイプ | journal article | |||||||||||||||
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アクセス権 | metadata only access | |||||||||||||||
著者 |
Ohashi, Yoshihiko
× Ohashi, Yoshihiko
× Kawai, Michiyo
× Kusahara, Kazuya
× Sasaki, Kenichi
× Ohshima, Kay I.
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書誌情報 |
Scientific Reports 巻 12, p. 8462, 発行日 2022-05-19 |
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内容記述 | Chlorofluorocarbon (CFC) and sulfur hexafluoride (SF6) were used to investigate the timescale of Antarctic Bottom Water (AABW) that spreads off Cape Darnley (CD) in East Antarctica. The age of the AABW was estimated based on the observed SF6/CFC-12 ratio while taking into account tracer dilution by Lower Circumpolar Deep Water. Along the western canyons off CD and the ~ 3000 to 3500 m isobaths, the bottom water age was < 5 years, reflecting the spread of newly formed CD Bottom Water. Higher ages of ~ 8 years obtained for areas east of CD and > 20 years in the northwestern offshore region indicate inflows of AABW through the Princess Elizabeth Trough and Weddell Sea Deep Water, respectively. This study determined the age distribution in the region off CD, where three different types of AABW spread. |
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識別子タイプ | DOI | |||||||||||||||
関連識別子 | https://doi.org/10.1038/s41598-022-12109-4 | |||||||||||||||
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関連識別子 | https://doi.org/10.1038/s41598-022-12109-4 | |||||||||||||||
関連名称 | Publisher's Version/PDF (OpenAccess) | |||||||||||||||
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出版者 | Springer Nature |