Mechanism of the Oxygen-Depleted Water Formation near the Head of the Ariake Bay and its Numerical Modeling
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- TANAKA Masahiro
- Kajima Technical Research Institute
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- ODAGIRI Mitsunori
- University of California, Davis
Bibliographic Information
- Other Title
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- 有明海湾奥部の貧酸素水塊形成過程とそのモデル化
- アリアケカイ ワン オウブ ノ ヒンサンソスイカイ ケイセイ カテイ ト ソノ モデルカ
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Abstract
A mechanism of the oxygen-depleted water formation near the head of the Ariake Bay is presented based on the field observation data taken by Seikai National Fisheries Research Institute (2009). The first formation of oxygen-depleted water occurred just after big discharges from rivers due to strong salinity stratification and massive Skeletonema sp. growth. The second formation was occurred in August when thermal stratification was developed and Chattonella sp. grew rapidly by taking nutrients in the bottom with vertically migration. A numerical model to simulate these processes was constructed using DELFT3D. The model reproduced the field data very well and revealed that degradation of detritus derived from phytoplankton in the water column and sediment was the most important for the oxygen consumption process.
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) 66 (1), 1011-1015, 2010
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205319719936
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- NII Article ID
- 130004956437
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- NII Book ID
- AA12508551
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- ISSN
- 18838944
- 18842399
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- NDL BIB ID
- 11235691
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed