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Improvement of Water Supply Capability of the Nakdong River Basin Dams with Weirs
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 Title & Authors
Improvement of Water Supply Capability of the Nakdong River Basin Dams with Weirs
Jang, Cheol-Ho; Kim, Young-Oh;
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 Abstract
This study sought to reevaluate the water supply capacities of the Nakdong river dams, and identify measures to remedy any shortages using weirs, focusing on 5 multipurpose dams and 8 weirs. The reevaluation of the dams was performed by the HEC-5 program using the original design criteria and inflow data recorded for each dam. The results show that the capacities of the 3 dams has decreased to 73~87%. Three simulations were performed to determine the effect of coordinating the dams and weirs. The first simulation was based on individual operation of the dams; the second on coordinated operation of the dams; and the third on coordinated operation of the dams and weirs. To obtain a water supply reliability of 95%, the annual water shortage was calculated for a 20-year period (1992~2011). In addition, long-term runoff simulation data used in the national river basin investigation by the Ministry of Land, Infrastructure and Transportation were used with the dam discharge data, because long-term inflow data for the weirs were not available. The simulations were performed by the HEC-ResSim program, with the reservoir network divided into 2 groups based on the Waegwan water station. The results show that water supply capacity for the 3 simulations to be , and , respectively. This indicates that coordinated operation of the dams and weirs could provide an additional water supply of .
 Keywords
Coordinated operations;Dam reevaluation;The nakdong river;Water supply capacity;Weirs;
 Language
Korean
 Cited by
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