68 © 2014 Conscientia Beam. All Rights Reserved. INVERSION OF ELECTRICAL RESISTIVITY DATA BY VES METHOD FOR WATER EXPLORING CASE STUDY: SOUTH WEST OF HAMEDAN, IRAN Ahmad Alvandi 1 --- Mojtaba Babaei 2 1 Young Researchers and Elite Club, Toyserkan Branch, Islamic Azad University, Toyserkan, Iran 2 Department of Geophysics, Hamedan Branch, Islamic Azad University, Hamedan, Iran ABSTRACT The purpose of this research is to explore the water in the south west of Hamedan which has many environmental problems and very few water resources. Also in the area, due to the lack of awareness, the farmers excavate the wells with high cost that results in declining water table. The collected data was investigated via the electrical probing at the Schlumberger array and Jointed with the wells data and geological information. The data processing was performed by conventional methods of calculation and utilized specialized software WINSEV, RES2D, RES3D, 2WIN at direct and inversion states. Finally the results of the research are acceptable and pleasant. Keywords: Specific electrical resistance method, Schlumberger array, Yekn-Abad of Hamedan, Inversion. Received: 13 April 2014/ Revised: 7 May 2014/ Accepted: 12 May 2014/ Published: 16 May 2014 Contribution/Originality Groundwater potential aquifers producing zones have been delineated through investigation conducted by the electrical resistivity survey. Good prospects therefore exist for groundwater development in the study area where the depth to basement is relatively thick and has favorable low resistivity, while those with thin depth to bedrock and high resistivity value have a lower potential for an aquifer. 1. INTRODUCTION Geoelectrics studies deal with the detecting of surface effects that are the results of passing the current across earth. This method compares with other geophysical methods; such as gravity, magnetic, elastic and radioactivity in which only a force field or anomaly property was used. By electrical methods, comma in between potential, currents and electromagnetic fields that are International Journal of Geography and Geology 2014 Vol. 3, No. 5, pp. 68-77 ISSN(e): 2305-7041 ISSN(p): 2306-9872 DOI: 10.18488/journal.10/2014.3.5/10.5.68.77 © 2014 Conscientia Beam. All Rights Reserved.