Automatic estimation of hydraulic parameters in unconfined aquifers

摘要

A computer program developed for the automatic estimation of hydraulic parameters of an unconfined aquifer is presented. The program is based on Neuman's (1974) analytical solution for flow to a partially penetrating well in an unconfined aquifer. The parameters of this solution are estimated by a nonlinear least squares procedure. The program was tested on data generated synthetically, and on data from two pumping tests performed in Ohio and Colorado. The estimated hydraulic parameters led to a good reproduction of observed aquifer behavior.