Electrical imaging and its application in engineering investigations

Abstract Recent developments in electrical tomography field acquisition and data inversion technology have resulted in the production of electrical images which more accurately mirror the subsurface than is possible with conventional resistivity surveys. The technique is particularly suitable for engineering site investigation where understanding complex subsurface structure in detail is important. This is demonstrated with examples of its application in determining depth to bedrock, in resource and contaminants studies and in monitoring subsurface fluid flow.