The Analysis of Flood Hydrograph by Using Vflo TM

This research examined a rainfall-runoff relationship containing linearity by applying radar rainfall to grasp more accurate properties of rainfall. In addition, this research improved accuracy of estimated radar rainfall by applying a G/R(Gauge to Radar) technique compensating estimated radar rainfall through using a ratio relationship between estimated radar rainfall and observed ground rainfall. In order to verify applicability of distributed rainfall-runoff model from radar estimated rainfall, this research constructs a analysis system which is typical distributed rainfall-runoff model and analyzed a discharge aspect while changing the size of a lattice. This research proposed estimation and compensation of radar rainfall as well as the lattice size of distributed rainfall-runoff model.