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

Knowledge of hydrodynamic coefficients is necessary for the determination of natural water flow through an aquifer and management of ground water resource. In this study, in order to determination of hydrodynamic coefficients of Zouzan aquifer results of 112 electrical sounding have been used. Quantitative interpretation was done by using IPI2WIN. Values of formation factor and porosity were determined by using geoelctric 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, 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 by 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.