So, new theory and methods are being urgently needed for the study on the rainfall-runoff forecasting.
因此，降雨径流的研究迫切需要引入新的理论和方法。
This article presents the principle of ANN briefly in the application of flood forecast and an improved network algorithm of rainfall runoff forecasting.
简要介绍了人工神经网络用于洪水预报的基本原理，对降雨径流预报的网络模型进行了改进。
In view of the above mentioned facts, it is very important to develop flood forecasting and waterlogging harnessing. while rainfall-runoff calculation is the kernel to solve these problems.
因此开展洪涝预报和渍害治理至为重要，而降雨径流计算是其首要解决的问题。
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