Author(s)

M.-E. Stoeckel, R. Mose & P. Ackerer

Abstract

The aim of this study was to apply a parameter identification method developed by Lions (e.g. Lions[5]), the Sentinel Method, to groundwater pollution. The mathematical basis of this method was to solve parameter identification problems where many data are unknown, in particular initial and boundary conditions. First the inverse problem was solved in the linear case to estimate pollutant mass. Two different algorithms can be used : the direct or the iterative one. The direct method was compared with the more classical Least Squares method. Then the non-linear case was studied to recover the source coordinates and/or the dispersivity. Numerical tests were conducted on the Rhenan aquifer south of Strasbourg, which velocity field has

Keywords