Estimation of reaeration coefficient and metabolism in a stream based on diurnal observation of dissolved oxygen
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Reaeration coefficients were estimated from the amount of dissolved oxygen measured during the nighttime between upstream and downstream points along an experimental stream located in Kakamigahara-shi in the Gifu Prefecture in Japan. Primary production and respiration were subsequently estimated for the daytime using the reaeration coefficients. The estimated values were considerably similar to those in previous researches, and the precision of our method was found to be satisfactory. However, the application of our method requires that the variation of the dissolved oxygen between the upstream and downstream fluctuate temporally, retention time between the two points should be short, and hydraulic characteristics along the longitudinal direction should be uniform. This method should be further analyzed for its effective application in the future.
- 日本陸水学会の論文
日本陸水学会 | 論文
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