京都府鴨川流域を対象にしたRRIモデルによる上流の水位再現性

Abstract

Due to recent flood disasters, it is important to understand water level and flood damage at multiple locations over a basin. However, the reproducibility of rainfall-runoff model was not well investigated at upstream locations in small-to-medium sized rivers. This research aims to validate the applicability of the RRI for discharge and water levels in small and medium rivers. The RRI was applied to Kamo river basin with resolution of 120m using river cross section data measured by laser profiler and was calibrated for 6 flood events at a gauging station. The model is capable of reproducing time series and peak of water level at upstream stations for 7 flood events. In addition, the model is capable of simulating time when water level exceeds a warning level. In conclusion, this study shows that the RRI is applicable to upstream gauging stations in Kamo river basin.