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Seasonal Variation of Water Temperature and Dissolved Oxygen in the Youngsan Reservoir  

Park, Yongwoo (Brain Korea 21 Team, Kunsan National University)
Cho, Kian (Department of Environmental Health, Chodang University)
Cho, Cheol (Department of Oceanography, Chonnam National University)
Publication Information
Journal of Korean Society on Water Environment / v.24, no.1, 2008 , pp. 44-53 More about this Journal
Abstract
To recognize the spatial and temporal variability of water temperature and dissolved oxygen in the Youngsan reservoir formed after dike construction, water temperature and dissolved oxygen data have been observed and analyzed from April, 2002 until March, 2003. As the results, certain stratifications were not distinctly observed in the Youngsan reservoir during summer, which was estimated due to the drainage characteristic from the Youngsan water gates. The yearly variation of water temperature in the Youngsan reservoir is shown seasonally ups and downs by the heat exchange between the atmosphere and the reservoir. On the other hand, dissolved oxygen and water temperature in the Youngsan reservoir have been shown inversed proportional correlation. As the calculation results of residence time and water exchange rate, it is considered that the feature of oxygen distribution is determined by the drainage characteristics caused the shortest residence time during summer, which also disturbed the formation of stratification in the Youngsan reservoir.
Keywords
Dissolved oxygen; Heat exchange; Residence time; Water exchange rate; Water temperature; Youngsan reservoir;
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