Abstract
This paper describes the identification of the parameters of a groundwater flow model by the extended Kalman filter-FE. Water flow in an aquifer is used as the model of the unconfined flow. In the model, the infiltration into a subsurface, based on surface flow and rainfall, is taken into consideration. Parameters to be identified are permeabilities of the groundwater flow model and the infiltration into the subsurface. The analytical strategy shown herein is applied to both a hypothetical and an actual basin, and the numerical results are then discussed. After the identification of parameters, on the other hand, examined is the effect of construction sequence of an underground dam on the change of water level in the upstream. And a pumping rate at the wells from the underground basin is also determined to minimize the change of water level over the entire domain.
