2021 Volume 77 Issue 2 Pages I_427-I_432
To implement the integrated river plan, it is required to estimate with high accuracy the amount of rainfall-runoff, the discharge capacity of the main river and tributaries, and the risk of inundation. In this study, the flood flow analysis model and the tank model for the upper Tone River system consisting of main river and tributaries were developed to the 2019 flood. The inflows and the discharges of each tributary were estimated from assimilation analysis on the temporal changes in the observed water surface profiles. The water surface profiles and discharge hydrographs in the upper Tone River with discharges from tributaries were explained. The evaluation method for runoff analysis and flood flow analysis based on water level presented in this study is generalizable. Therefore, this method can be applied to other river systems.
PROCEEDINGS OF HYDRAULIC ENGINEERING
