The Okhotsk-Pacific seawater exchange in the viewpoint of vertical profiles of radiocarbon around the Bussol' Strait

被引:15
作者
Aramaki, T
Watanabe, S
Kuji, T
Wakatsuchi, M
机构
[1] Japan Atom Energy Res Inst, Marine Res Lab, Mutsu, Aomori, Japan
[2] Hokkaido Univ, Grad Sch Environm Earth Sci, Lab Marine & Atomospher Geochem, Kita Ku, Sapporo, Hokkaido 060, Japan
[3] Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 060, Japan
[4] Japan Marine Sci Fdn, Mutsu, Aomori, Japan
关键词
D O I
10.1029/2001GL013227
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Vertical profiles for Delta C-14 values were described around the Bussol' Strait for the first time. The abnormality of Delta C-14: values at 0-400 m depth in the Bussol' Strait was observed, and expected that diapycnal mixing occurs between the sub-surface water around the Bussol' Strait and the surface water in the Bussol' Strait. The Okhotsk-Pacific cross-sections through the Bussol' Strait of Delta C-14 and sigma (delta) suggested the intermediate water in the Sea of Okhotsk (26.8-27.3 sigma (delta)) has the role of the Okhotsk-Pacific water exchange, and the deep water (> 27.3 sigma (delta)) between the Sea of Okhotsk and the Pacific Ocean is mixed well rapidly through the Bussol' Strait. Using estimation of bomb produced C-14 inventories in each water column, it was suggested the quantities of the Okhotsk-Pacific water exchange may be essentially small.
引用
收藏
页码:3971 / 3974
页数:4
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