广泛应用于小流域径流估算,径流曲线数CN和初损率λ是SCS-CN模型中的两个主要参数.选取沂源县为研究区,运用ArcGIS软件计算沂源县24个小流域的CN值,并根据实测降雨径流资料优化初损率λ,确定适用于高村河小流域的初损率λ为0.13,其模型效率系数E为0.789 7,研究得出的径流曲线数和初损率取值可用于沂源县小流域的地表...
The SCS-CN model is widely used in small watershed runoff estimation because of its simple calculation process and fewer parameters. The runoff curve number CN and the initial loss rate 位 are the two main parameters in the SCS-CN model. Selecting Yiyuan County as the study a...