Possible explanations might be poor data coverage at deeper depths in the model and model discretization that cannot resolve inclined geometries.", However, it was not possible to resolve inclined blocks in any of the inversions. A square-like feature close to the ground surface in the forward model was well resolved by all inversion software. BERT seems to be somewhere in between, but does not seem to resolve sharp features in the synthetic forward model, resulting in rounded anomalies. As expected, Res2Dinv generally tends to exaggerate structures vertically and Aarhusinv to exaggerate them vertically. Two synthetic forward models have been used. The programs used are Res2Dinv, Aarhusinv and BERT. In this paper, three different inversion software's have been compared through inversion of the forward response of the same synthetic model. It is therefore important to investigate if different software's give similar results for a given data set. Several inversion programs are available for geophysicists to use. In order to interpret the results, inversion is needed to create models estimating distribution of resistivity in the ground. One commonly used method in such applications is electrical resistivity tomography (ERT). Possible explanations might be poor data coverage at deeper depths in the model and model discretization that cannot resolve inclined geometries.Ībstract = "The application of geophysics may assist in solving environmental, geotechnical and exploration problems. The application of geophysics may assist in solving environmental, geotechnical and exploration problems.
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