What lies below the ground surface is invisible to us, but via investigations of the electrical properties in different materials, we can understand the signals that are returned from the ground when current pulses have been transmitted.
An overall conclusion in this report is that methods spanning over different length scales, from microscale via laboratory investigations to field scale investigations, are necessary to increase the understanding of how SIP-effects vary in different materials. There is currently a gap in the knowledge of how these different scales relate to each other with respect to SIP-effects. The results are a step on the way towards bridging this information gap and improve interpretation of field scale SIP-effects.
This report is based on a doctoral thesis from Lund University and the work has mainly been performed by Sara Johansson with advice and support from Torleif Dahlin, Charlotte Sparrenbom, Håkan Rosqvist and Gianluca Fiandaca along with the participants of the reference group Nils Outters, Thomas Sträng, Roger Wisén, Christel Carlsson, Lars O. Ericsson, Malin Norin, Staffan Hintze, Andreas Pfaffhuber and Per Tengborg.
The project was financed by Formas, SBUF, Lund university, Hakon Hansson Foundation and BeFo.
Stockholm
Patrik Vidstrand