Adaptive Decision Support System for Real-Time Operation of the Geum River Basin, Korea

Abstract

A joint international collaboration between the Korea Water Resources Corporation (KOWACO) and Colorado State University has resulted in development of a decision support system (DSS) for daily operations in the Geum River Basin, Korea. The DSS is a customized version of the MODSIM Generalized River Basin Network Flow Model, which has been adapted to the Geum River Basin in particular and Korean conditions in general. Customization of MODSIM into the Korean version KMODSIM is accomplished without the need for any recoding of the model, but rather through use of embedded MS VB.NET scripts. The graphical user interface is translated into the Korean language for ease of use by KOWACO engineers and system operators. The model is not only calibrated to physical and hydrologic characteristics of the basin, but also to the operational and administrative water allocation priorities for multiple water uses including municipal and industrial water supply, irrigation supply, hydropower generation, and low-flow augmentation for water quality management. Conditional reservoir operational rules adapted to changing river basin conditions are developed using implicit stochastic optimization and incorporated into the daily operational model using embedded VB.NET scripts.