The survey is usually carried out with a system where the electrodes are arranged along a line with a constant spacing between adjacent electrodes. This program is designed to invert large data sets (with about 200 to 100000 data points) collected with a system with a large number of electrodes (about 25 to 16000 electrodes). Many different multi-electrode systems have been developed over the past 15 years using different arrangements of the cables and measurement strategies (Loke, 2011). Formatting Array Input Data File in RES2DINV: surface electrodes for any geometryĮxample of electrodes arrangement and measurement sequence that can be used for a 2-D electrical imaging survey is shown on the left.
