A multiscale method for fast electromagnetic simulations
Eldad Haber*, Lars Ruthotto · 2014
Simulating low-frequency electromagnetic fields by solving Maxwell's equations is a central task in many geophysical applications. In most cases, geophysical targets of interest exhibit complex topography and bathymetry as well as layers and faults. Capturing these effects accurately in numerical simulations is challenging. Standard approaches require a very fine discretization that can result in an impracticably large linear system to be solved. A remedy is to use locally refined and adaptive meshes, however, the potential coarsening is limited in the presence of highly heterogeneous and anisotropic conductivities.