Browsing by Author "Cha, Kee-Uk, author"
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Item Open Access Conjunctive management methodology considering stream-aquifer systems and reservoir operations(Colorado State University. Libraries, 2007) Cha, Kee-Uk, author; Fontane, Darrell G., advisorThe purpose of this research was to develop a methodology to determine whether conjunctive surface water and groundwater management integrated with reservoir operation could significantly reduce deficits in a river basin with a relatively limited alluvial aquifer. The Geum River basin is one of major river basins in South Korea. The upper region of the Geum River basin is typical of many river basins in Korea where the shape of river basin is narrow with small alluvial aquifer depths from 10m to 20m and where most of the groundwater pumped comes quickly from the steamflow. The basin has two surface reservoirs, Daecheong and Yongdam. The most recent reservoir, Yongdam, provides water to a trans-basin diversion, and therefore reduces the water resources available in the Geum River basin. After the completion of Yongdam reservoir, the reduced water supply in the Geum basin resulted in increasing conflicts between downstream water needs and required instream flows, particularly during the low flow season.