Abstract
The demand for groundwater supply has been increasing in recent year. In the past, Electrical Resistivity Method has been one of the well-known non-destructive methods for groundwater surveying using various protocols to obtain the tomography of the soil subsurface. This study interpreted the difference of imaging results between two different protocols, the Pole-dipole array and the Multiple Gradient array using ABEM TERRAMETER LS 2 due to the complexity of geological setting. The geophysical survey shows the imaging result of the resistivity and induced polarization for the Pole-dipole array that differs from the imaging results from Multiple Gradient array because of the different path the electric current C2 passing through different soil types before reaching to the other side of the current electrode C1. The positioning of the remote cable was practically perpendicular to the alignment of the electrode spacing for Pole-dipole and parallel for Multiple Gradient array and this causes the data collected at both protocols to have different values because of the difference in composition of soil that the current has to go through. This study has verified the differences of resistivity and induced polarization imaging results by using a drilled tube well to identify the soil types.
Highlights
There are multiple subsurface exploration methodswhich can help in interpreting the conditions and contents of the subsurface of the earth
One of the most recognized characteristics of the Pole-dipole array is the use of the remote current electrode which in theory should be placed at a distance of infinity or at least located at a distance of five times the maximum spacing from each survey line and perpendicular to it [3]
This study will evaluate the effect of the position of the injected current by comparing the results of the resistivity and induced polarization imaging between the Pole-dipole and Multiple Gradient arrays
Summary
There are multiple subsurface exploration methodswhich can help in interpreting the conditions and contents of the subsurface of the earth. One of the most recognized characteristics of the Pole-dipole array is the use of the remote current electrode which in theory should be placed at a distance of infinity or at least located at a distance of five times the maximum spacing from each survey line and perpendicular to it [3]. It means that the injected current is outside the electrodes spread line. The positioning of the tube well is decided based on the potential of the availability of groundwater that is determined through the results of the resistivity and chargeability by using both of the information obtained
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
