Publication Name: AEGC 2021
Authors: Andrea Viezzoli, Francesco Dauti, Nirocca Devkurran, Brad Pitts
Date Published: September 2021
Number of Pages: 3
Abstract:
IP effects can distort airborne EM data, usually producing faster decays and, under certain conditions, changes in signal polarity. These effects, if not recognized and treated with a dispersive resistivity model, often lead to artefacts in the resistivities recovered. Historically, the IP effects in fixed-wing AEM systems have been put in the “too hard basket”. This was mainly due to their geometric configuration (and its monitoring) that prevented an unambiguous relation between negative voltages and IP effects.