“…Inversion results are shown together with background geological information and it is concluded that they are in good agreement.In near-surface applications induced polarization has shown to be especially useful for delineating landfills (e.g., Carlson et al 1999;Iliceto et al 1999;Dahlin et al 2010), mapping pollutant plumes (e.g., Abu-Zeid et al 2004;Sogade et al 2006) and in hydrogeological applications (e.g., Martinho andAlmeida 2006), where one hopes to be able to estimate hydraulic conductivity (e.g., Hördt et al 2007).Induced polarization can be quantified using a number of different parameters, e.g., chargeability in the time domain, frequency effect, phase and amplitude in the frequency domain. Although comparable, these measurements are not strictly equivalent (e.g., Zonge et al 1972). Comparing results obtained at different sites with different measuring equipment can as a Our expertise covers mineral exploration, all types of near surface surveys, marine geophysics, UXO and surveys for other manmade hazards…”