Abstract
To improve the reliability and the prediction precision of the inundation analysis, the adjoint method is expected to be an effective method. The method can assimilate observation data to a analysis model, consistent with dynamics equations strictly. However, the method is not capable of functioning in some cases, such as non-linear numerical models. In this study, non-linear inundation model is derived from PBM in considering groups of houses, and the applicability of the adjoint method to the inundation analysis is evaluated on some simple conditions, composed of topography, the observation positions, by inverse analysis of inflow conditions. As a result, the method is verified to be effective enough, on appropriate conditions.
