Details of the abstract
|Title of paper||3D Minimum-structure Inversion for CSEM Problems Using Potentials and Unstructured Tetrahedral Grids|
|List of authors||Kadir Bahadır Kara, Colin G. Farquharson|
Memorial University of Newfoundland, Department of Earth Sciences, St. John’s, Newfoundland A1B 3X5, Canada.|
Memorial University of Newfoundland, Department of Earth Sciences, St. John’s, Newfoundland A1B 3X5, Canada.
|Summary||The aim of this study is to develop a powerful and flexible interpretation tool for CSEM problems. The new algorithm was tested with three synthetic examples. One of the three examples was a realistic model that includes an amorphous body and topography. The EM fields (e.g., Ex and Hz) were used as data, and Gaussian random noise was added before inversions. The inversions of models were completed with a common-or-garden laptop and in reasonable time e.g., 85 hr. Both iterative solvers could reduce the residual norms down to the desired level. The recovered models were almost the same for both iterative solvers, and the buried bodies of the three examples were fully recovered.|
|Session Keyword||2.0 Theory, Modelling and Inversion|