FIELD MEASUREMENTS OF WATER QUALITY IN A PARTIALLY OVERTURNING RESERVOIR WITH INVERSE TEMPERATURE GRADIENT IN ITS BOTTOM LAYER

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  • 底部に逆転水温層を有する部分循環貯水池の水質構成に関する研究
  • テイブ ニ ギャクテン スイオンソウ オ ユウスル ブブン ジュンカン チョス

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Abstract

Reservoir hydrodynamics and water quality behavior are examined by performing field measurements in a reservoir: in its bottom layer, high concentration of materials brings high electric conductivity, and the water mass is stratified with inverse temperature gradient. Through the quality analyses of the reservoir water it is found that ignition losses, calcium, suspended solid, iron, manganese and other materials show high concentration to compensate density defect due to inverse temperature gradient. Based on the observed data, water quality behavior and engineering countermeasures to solve water quality troubles are discussed.

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