| Summary: | 碩士 === 國立中央大學 === 水文所 === 95 === This study developed a distributed watershed run-off model which consider rainfall, interception, overland flow, infiltration, and channel flow. Finite difference numerical scheme was used in the model to discretize the governing equations of the hydrological processes. With appropriate data and parameters, we could use this model to simulate these hydrological processes in the computer.In this study, the watershed of Shihmen Reservoir was chosen as the research domain and typhoon Nari was chosen as the rainfall event. We validated the model with different time interval and spatial resolution ,and also discussed the importance of interception and infiltration as well as discussed the impact on flood wave with different roughness of the channel. Finally, we proposed some suggestions to the model.
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