ABSTRACT
With the continuous development of modern meteorological technology and more rich observational data, making full using of these data in reservoir basin of having less hydrological stations or no hydrological stations can strengthen scientific and predictability of reservoir flood control operation. Currently, there are many experts input the rain gauge, Quantitative Precipitation Estimation (QPE), Quantitative Precipitation Forecasting (QPF) and other information into the hydrologic model for simulation and testing, and achieve better results. Peng Tao use grouped Z-I relationship and ground rainfall precipitation to calibrate the radar estimated precipitation. The precipitation was input into hydrological model for flood forecasting, results show that, the calibrated precipitation’s precision of radar estimation of flood forecast is greatly improved. Zhang Yaping calibrate the radar estimated precipitation by selecting different number of rain gauge, and input the calibrated results to the TOPMODEL hydrological model for runoff simulation, satisfactory results are obtained. The results show that, considering the rainfall forecast period has obvious advantages on improving flood forecasting results than to without considering the forecast period precipitation. Wang Lili combined the GRAPES model and hydrological model for flood forecasting, the result shows that GRAPES meteorological hydrological model is obvious to prolong the flood forecast period and has higher precision for flood simulation. The application of the above results biased in favor of one or two class data for the study of fusion, three or more kinds of the information is rare. Therefore, this paper make the best of the observed precipitation meteorological station, radar estimated precipitation and forecast precipitation
ering the reservoir basin without the reliable rainfall data. This work can supply scientific reference for reservoir flood control.
