書誌事項
- タイトル別名
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- Fluctuation Characteristics of Dissolved Oxygen in Lake Koyama of Tottori Prefecture
- トットリケン コヤマイケ ニ オケル ヨウゾン サンソ ノ ヘンドウ トクセイ ニ ツイテ
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To examine the behavior of DO from the viewpoint of formation and the break of density stratification, we continuously measured the water quality and micrometeorology of Lake Koyama at its deepest point of about 6 m from June to November in 2003. DO and EC in the surface and bottom layers, the vertical profile of the water temperature, the wind velocity and insolation were observed. As a result, DO in the bottom layer was lacking due to the formation of the thermal stratification in summer, and due to the saline stratification in a non-irrigation period after a large amount of sea water had flowed into Lake Koyama. The results also revealed a negative correlation between DO in the bottom layer and Wedderburn number W. Further analysis of the relationship between them indicated that anoxic water was generated due to the repression of the DO supply below surface layer under the stratification conditions of W>4.5, and that the anoxic state in the bottom layer could be eliminated by the generation of vertical circulation when the wind velocity of W<4.5, more than 4.0 m/s in summer and more than 10.0 m/s in the non-irrigation period, operated on the water area.
収録刊行物
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- Journal of Rainwater Catchment Systems
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Journal of Rainwater Catchment Systems 10 (1), 29-35, 2004
日本雨水資源化システム学会
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詳細情報 詳細情報について
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- CRID
- 1390001204485532928
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- NII論文ID
- 110002696225
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- NII書誌ID
- AA11657953
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- ISSN
- 21866228
- 13438646
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- NDL書誌ID
- 7819383
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可