Our main activities concern the theory and application of electromagnetic and potential field methods in applied geophysics. Electromagnetic fields provide important information about the structure of the Earth's interior on scales ranging from a few centimeters to tens of kilometers. We develop numerical simulation and inversion software for the following methods:

• Inductive electromagnetics in the frequency and time domains
• Direct current geoelectrics and induced polarization
• Magnetics & gravimetry

Our numerical methods use finite element methods on tetrahedral grids and are capable of incorporating arbitrary geometries such as topography. Based on this, we develop modern inversion methods for the spatial reconstruction of petrophysical parameters in the subsurface.

We use our methods to address a wide range of practical problems and applications:

• Mineral exploration
• Groundwater and environmental issues
• Volcanoes and geohazards
• UXO - detection and archaeology