EGU24-7184, updated on 08 Mar 2024
https://doi.org/10.5194/egusphere-egu24-7184
EGU General Assembly 2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

A cooperative inversion of airborne transient electromagnetic and magnetic methods based on grid mapping

Da Lei1 and Hao Ren2
Da Lei and Hao Ren
  • 1Institute of Geology and Geophysics, Chinese Academy of Sciences, CAS Engineering Laboratory for Deep Resources Equipment and Technology, China (leida@mail.iggcas.ac.cn)
  • 2College of Earth and Planetary Sciences, University of Chinese Academy of Sciences,Beijing, China

Imposing structural constraints between grids of variable sizes is problematic because different geophysical techniques employ different grid divisions. We propose a new collaborative inversion approach and utilize it to invert the proposed 2-D ATEM and 2-D Magnetic Methods with Induced Polarization (IP) effects, which overcomes the problem of imposing cross-gradient constraints at different grid sizes. The grid mapping technique is included into the iterative collaborative inversion process by the inversion strategy. The combined data inversion results show that the technique may successfully leverage data complements to improve the accuracy of the medium boundary description results. The concept is suitable to collaborative inversion of geophysical methods with arbitrary grid divisions and successfully solves the problem of mismatched grid divisions in collaborative inversion.

How to cite: Lei, D. and Ren, H.: A cooperative inversion of airborne transient electromagnetic and magnetic methods based on grid mapping, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-7184, https://doi.org/10.5194/egusphere-egu24-7184, 2024.