Application of a Layered Groundwater Model to Critical Areas in Northeast Mississippi

摘要

A layered groundwater model developed by McDonald and Harbaugh was applied to the Eutaw-Mcshan aquifer in Northeast Mississippi using a 2.5 mile square grid. The need for a more precise model resulted from a previous study using a large grid (10 square mile grid) and estimated parameters. Initial estimates of the aquifer geometry were obtained from maps developed by the U.S. Geological Survey. The information was supplemented by electric logs of wells which were used to either refine or verify aquifer geometry. Model parameters were calibrated using a 1978 and a 1982 potentiometric map of the aquifer prepared by the U.S. Geological Survey. The aquifer parameters were calibrated to reproduce the potentiometric heads in the aquifer from 1978 to 1982.