Advanced HBV model research based on GIS applying in partial rainstorm area

Abstract

The HBV model, which is widely used in melt snow region in Europe, has adopted the principle of water balance. It has the advantages of simple parameter, less calibrating time, and good stimulate effect. In order to work out a flood forecast in the partial-regional rain-storm problem, the article ushered in HBV model and combined the improvement of carrying on the model with GIS, adding more factors like slope-runoff, and choose about 500 square kilometer drainage basin of south for application study. The consequence proves that the improved HBV model can be applied to partial rain-storm flood forecast in small drainage basin.