ABSTRACT
Based on the analysis of rainfall distribution law of typhoon storm or thunderstorm, a real-time flood forecasting model considering rainfall center is proposed by absorbing the advantages of Isohyetal method and Thiessen polygon method. In accordance with the rainstorm data of 14 floods in Nanxi River Basin from 1990 to 2004, the forecasting accuracy of two methods considering rainfall center and without considering rainfall center are compared. The results show that the former strengthens the peak-building effect of rainstorm center and improves the real-time flood forecasting accuracy.
