Abstract¶
Numerical simulations of electromagnetic data enable us to simulate data, design surveys and visualize the fields and fluxes in an electromagnetic (EM) experiment. Inversions allow us to estimate physical property models from measured data using numerical simulations and optimization machinery. In this talk, I will provide an overview of different strategies that can be used for numerical modelling, such as using analytic solutions or 3D simulations with structured or unstructured meshes, and illustrate how visualizing the EM fields and fluxes can build an understanding of the responses we measure. I will provide a brief overview of the fundamentals of inversion with a focus on challenges specific to electromagnetics. Finally, I will discuss recent advances and active research on the inversion of EM data for mineral exploration using the open-source SimPEG software.
Figure 1:Cross sections showing the current density through time for a ground-based time domain EM experiment with a conductive, dipping target.
