A Study for Flood Control of a Dam Using Flood Guide Curves and Release Determination Method in Accordance with Reservoir Water Level

Most of dams are located in mountainous area where slope of catchment and stream is very steep. Especially, effective flood control by a dam can't be achieved if there are difficulties in predicting flood by geomorphological effect or restrictions for upstream and downstream of a dam. This study proposed flood guide curves for effective flood control and intuitive response to real time flood in a dam. Release determination method in accordance with reservoir water level was also introduced to apply the flood guide curves to real time practice. Validity of the flood guide curves and release determination method was evaluated by applying them to several previous flood events. The flood guide curves and release determination method can be used in real time flood control of a dam in future.