TEMPORAL VARIATION OF CARBON DIOXIDE FLUX ON OMAEHAMA IN INNER PART OF OSAKA BAY
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- OTANI Sosuke
- 大阪府立大学工業高等専門学校
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- KOZUKI Yasunori
- 徳島大学環境防災研究センター
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- MATSUSHIGE Maya
- 徳島大学環境防災研究センター
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- YAMANAKA Ryoichi
- 徳島大学環境防災研究センター
Bibliographic Information
- Other Title
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- 大阪湾湾奥の御前浜における二酸化炭素フラックスの時間変動
- オオサカワンワン オク ノ ゴゼンハマ ニ オケル ニサンカ タンソ フラックス ノ ジカン ヘンドウ
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Abstract
<p> To reveal the relationship between temporal variation of CO2 flux and water quality using eddy correlation method at Omaehama beach in the inner part of Osaka Bay was conducted in this study. During the observation period, the CO2 flux fluctuated between -0.90 and 0.67 mgCO2/m2/s. CO2 was absorbed in all the neap tides, and was emited in spring tides. In addition, CO2 flux at daytime was absorbed about 2.8 times than that at night in the neap tide. There was no strong correlation CO2 flux and the surface water quality. It was thought that CO2 flux in the inner part of Osaka Bay fluctuated with neap and spring tide. Therefore, CO2 flux was effected by tide, but not events such as hypoxia, stratification and occurrence of hydrogen sulfide.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75 (2), I_1015-I_1020, 2019
Japan Society of Civil Engineers