The statistical result shows that the average precision of rainfall intensity is over 80 % which varies largely with rainfall intensity grades using infrared cloud imagery parameters and the size of analysis field has slight effect on it . the monthly model make less improvement on p 对预测方程检验的结果表明：利用红外资料估算未来6h的降雨量其总体样本的平均正确率为80以上，但是在分级样本上差别很大，这对小区域短时降雨预报具有很好的参考价值。
