Earth's subsurface electrical conductivity models created using the GoFEM code. These are obtained by solving a non-linear PDE-constrained optimization problem using observations of electromagnetic fields measured on the ground or in space.

All models are open, check the respective papers for more details:

• USArray

• Mongolia

• Main Ethiopian Rift: Corbetti volcano, Aluto/Cross-rift

• Global conductivity profile

• Earth oceans and marine sediments

These are some animations visualizing them: