The probability density function of net rainfall relative errors , flood peak discharge relative errors and the time error of the forecasted flood peak are calculated by the model developed 通過(guò)建立洪水預(yù)報(bào)誤差分布的最大摘模型,計(jì)算出9座典型水庫(kù)洪水預(yù)報(bào)的凈雨相對(duì)誤差、洪峰流量相對(duì)誤差和峰現(xiàn)時(shí)間預(yù)報(bào)誤差的概率密度函數(shù),并將其概率密度函數(shù)曲線與正態(tài)分布曲線進(jìn)行比較。