Estimation of Hydrodynamic Coefficients of Zouzan Plain Aquifer Using Electrical Sounding Data

Knowledge of hydrodynamic coefficients is necessary for the determination of natural water flow through an aquifer and management of ground water resources. In this study, in order to determine hydrodynamic coefficients of Zouzan aquifer, results of 112 electrical sounding data have been used. Quantitative interpretation was carried out using IPI2WIN. Values of formation factor and porosity were determined using geoelectric interpreted data at each sounding site. Average porosity was estimated about 26 percent for this aquifer. Values of intrinsic permeability and hydraulic conductivity were determined by using Kozeny equation and data from geoelectrical- interpretation. Then, hydraulic conductivity map was prepared. The average of hydraulic conductivity estimated 12.5   10-5 m/s for alluvial of this aquifer. Values of transmissivity was determined using the information obtained, then, its map was presented. The average transmissivity coefficients of 1552 m2/day was estimated for this aquifer. Values of specific yield was determined by using Archie equation at each sounding, then, its map was presented. By comparing of the results of geoelectric interpretation with the result of pumping test indicates acceptable accuracy were exist between two methods.