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http://dx.doi.org/10.3741/JKWRA.2013.46.12.1141

Coping with Climage Change through Coordinated Operations of the Andong & Imha Dams  

Park, Junehyeong (Dept. of Civil & Environmental Engrg., Seoul National Univ.)
Kim, Young-Oh (Dept. of Civil & Environmental Engrg., Seoul National Univ.)
Publication Information
Journal of Korea Water Resources Association / v.46, no.12, 2013 , pp. 1141-1155 More about this Journal
Abstract
A number of studies have been performed to analyze climate change impacts of water resources system. In this study, a coordinated dam operation is compared with an existing operation strategy for coping with projected future runoff scenarios. GCMs (Global Circulation Models) and the LARS-WG downscaling method was used to project future climate scenarios. The water balance model called abcd was employed to estimate future runoff scenarios. The existing dam operation comes from the national dam construction guideline, which is called the "level-operation method." The alternative coordinated dam operation are constructed as a linear programming using New York City rule for refill and drawdown seasons. The results of annual total inflow in future is projected to decrease to 72.81% for Andong dam basin and 65.65% for Imha dam basin. As a result of applying future runoff scenarios into the dam operation model, the reliability of coordinated dam operation, 62.22%, is higher than the reliability of single dam operation, 46.55%. Especially, the difference gets larger as the reliability is low because of lack of water. Therefore, the coordinated operation in the Andong & Imha dams are identified as more appropriate alternative than the existing single operation to respond to water-level change caused by climate change.
Keywords
correspondence to climate change; coordinated dam operation; LARS-WG; level-operation method; modified space rule;
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