A Feasibility test for dipolar electrical soundings in a shallow lake

Former researches made with different techniques to perform vertical electrical soundings in water showed that the main restriction was the small depth of investigation due to the limited length of the cables. Practical problems prevent the use of cables longer than 2/300 meters. We tested the dipolar sounding technique with the aim of reaching greater investigation depths using short cables (no more than 100 m). The tests were carried out on the very shallow Lake of Massaciuccoli, where a survey with Schlumberger cables (up to 256 m) were performed several years ago. We obtained positive results, with depth of investigation more than double the original one.