Publication Details

Reference Category Conference contributions
DOI / URL link
Title (Primary) Global joint inversion of tomographic data: appraisal of model reconstruction ambiguity
Title (Secondary) Near Surface Geoscience 2013 – 19th European Meeting of Environmental and Engineering Geophysics Bochum, Germany, 9-11 September 2013
Author Paasche, H.; Tronicke, J.
Year 2013
Department MET
Language englisch
Abstract Geophysical model reconstruction by data inversion is usually ill-posed and suffers ambiguity
due to limited number and accuracy of the available observations. Joint inversion of different data sets
allows for mutually improved reconstruction of physical parameter models underlying each of the
available data sets, but considering the limited number and accuracy of available observations, some
ambiguity remains. Here, we use particle swarm optimization to jointly invert synthetic GPR and Pwave
crosshole tomographic data sets. Model parameterization is guided by the results of a zonal
cooperative inversion based on local search optimization of an initial guess. Global optimization is first
done to explore the Pareto front of the joint inverse problem in a very efficient way. Consecutively, the
area behind a selected location of the Pareto front is explored to be able to assess the model
reconstruction ambiguity inherent to the available data and chosen parameterization.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=15623
Paasche, H., Tronicke, J. (2013):
Global joint inversion of tomographic data: appraisal of model reconstruction ambiguity
Near Surface Geoscience 2013 – 19th European Meeting of Environmental and Engineering Geophysics Bochum, Germany, 9-11 September 2013