SCS model is applied to calculating runoff amount of several typical small watersheds of North of Shaanxi and Weibei .
用SCS降水-径流模型对陕北渭北多个典型小型集水区降雨径流量进行了分析与计算。
The calculation amount is huge and the convergence velocity is low, especially in the calculating of small probability events.
但是该法计算量大，收敛速度慢，尤其是对小失效概率问题。
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