Abstract
Ground‐based methods have been used to ensure AEM data validity but they are not always at hand and have extent coverage limitations. Alternatively, we describe here a statistical method where the median response of HEM field data is compared with a predicted response of an ‘averaged’ structure. This process is done in the conductivity independent αβ domain, which also makes recalibration independent of the system frequencies used. Amplitude rescaling by this statistical method was tested with a HEM data set collected in the Tintinara area in South Australia. Results were collated using conductivity depth images (CDI's), maps and sections, of the raw and recalibrated data. Original delivered data produced CDI images regularly discrepant with ground truth. However, rescaling has produced remarkable coincides between the ground truth and the CDI sections
Published Version
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