STUDY ON OPTIMIZED CONSTRUCTION OF TANK MODEL USING SCE-UA METHOD

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  • SCE-UA法を用いたタンクモデルの最適構造構築に関する一考察

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 A tank model is widely used to make a run-off analysis or a prediction of the land-slide disaster occurrence. To obtain accurate simulation results it is necessary to identify a model structure and its model parameters suitably. However, it is difficult to identify the model structure and parameters simultaneously. The conventional manner to construct the tank model is that the model structure is determined in advance and then the model parameters are identified. The identification of the tank structure has not discussed sufficiently. In this study, we have attempted to identify the model structure and the model parameters with SCE-UA method which is one of the optimization methods. The identification in the model has been conducted to the Saba River basin, Yamaguchi Prefecture. It is found that the obtained three tanks model can predict the observation data with the nearly same precision as the complex five tanks model.

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