Takahiro ADACHI and Naoko KOHASHI and Daisuke NAKAZONO 1 正会員 博士(工) 鹿児島大学准教授 大学院理工学研究科海洋土木工学専攻 (〒890-0065 鹿児島市郡元1-21-40) 2 正会員 博士(工) 鹿児島大学プロジェクト研究員(〒890-0065 鹿児島市郡元1-21-40) 3 学生会員 大学院理工学研究科海洋土木工学専攻(〒890-0065 鹿児島市郡元1-21-40) In the northern region of Kagoshima Bay, DO concentration takes the minimum value at the bottom layer in winter. In order to make clear the mechanism of such characteristic behavior, we carried out some numerical experiments. Then, we predicted the behavior of the density stratification and DO concentration in Kagoshima Bay by utilizing some results of a global climate simulation model. As a result, the following findings were made clear; 1) the timing of the formation of hypoxia in Kagoshima Bay was determined mainly by the relative relation between the vertical mixing and the depth. 2)It was predicted that the hypoxia may become more serious in the future by the stabilization of the density stratification due to the long-term climate change.
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