Estimation of Discharge Adapting Changes of River Environment

This study suggested method that can estimate river discharge through F(M) eq. considering hydraulic characteristics such as bed slope, wetted parameter, width, depth, velocity etc, and based on entropy concept adopting probabilistic approach. The entropy parameter M is estimated by result of F(M) eq. using highly relible and measured discharge data of oversea and this is used to calculate the maximum velocity having difficulty of observation in open channel. The (M) presenting the equilibrium state and the mean velocity and river discharge are estimated through regression analysis between maximum and mean velocity. The relationship between estimated and measured discharge is analyzed through the discrepancy ratio and confirms that this result presents very approximate value to measured data.