改进的SCS模型在流域径流模拟中的应用

Application of modified SCS model into runoff simulation

介绍了改进的通用SCS日模型,应用该模型对汉江牧马河等8个流域进行长系列水文模拟,结果表明:模型对于较大径流系数的流域模拟效果较好,而较小径流系数的流域则不够理想;模型不仅仅可用于小流域径流计算,对于较大流域也一样可以取得满意的结果。结合M OD IS遥感数据确定模型参数,为开展无资料地区的水文预报进行了一定的尝试。

The modified SCS versatile model was introduced and applied to eight basins in China for long-term hydrological simulation. It was suggested and concluded that the model performs well for the high runoff coefficient and poorly otherwise; the simulation results are satisfactory on large basins as well as small basins. Using remote sensing MODIS data, the model parameters were determined, and it is showed that an attempt was made for predictions in ungauged basins.