2013 Volume 19 Pages 253-258
This paper is discussed to make possibility to the flood forecasting system with small-medium river. Equation of relation between precipitation and water surface level is led by combination with basic equation of reserved function model and equation of HQ curve. Temporal series of constants in equation is analyzed by self regression equation.
Unscented Kalman Filter was employed with complicated non-linear model in order to assume suitable constants in equation. We applied flood forecasting model with Unscented Kalman Filter for actual flood data of River Doki and River Old-Yoshino , and the result of the numerical experiment gave good agreement with the value that had been obtained by the observed water level of two rivers.
