Methods for modelling electromagnetic fields Results from COMMEMI—the international project on the comparison of modelling methods for electromagnetic induction

This special issue is concerned with the present state of the art in methods of numerical modelling of geo-electromagnetic fields in inhomogeneous media. A theoretical overview is followed by specific applications of the various modelling methods and computer programs (developed throughout the world) to the geo-electric test models of the international project on the Comparison Of Modelling Methods for ElectroMagnetic Induction problems (COMMEMI). Numerous tables and diagrams provide a comparison of the results obtained by these different approaches. This material is intended for geophysicists dealing with the modelling and interpretation of geo-electromagnetic fields, for scientists involved in the testing of related software, for specialists in the field of computational geophysics, and for graduate and senior undergraduate students studying this branch of geophysics.