Chap VI: Geoelectrical methods used in Hydrogeology

Geoelectrical methods are a non-invasive (non destructive) geophysical techniques that measure the electrical properties (primarily electrical resistivity or its inverse, conductivity, and chargeability/Induced polarization) of the subsurface to infer its composition, fluid content, and geological structure. They provide spatially extensive, high-resolution information about the subsurface in a cost-effective manner.