Christmas lecture in module PEA735 – Electrical Imaging Christmas lecture in module PEA735 – Electrical Imaging

The module “Electrical Imaging” (Master’s program PEA https://www.ifgeo.uni-bonn.de/en/study/study-mug/master-pea) covers the theoretical fundamentals of geoelectrical methods in geophysics. While the emphasis is on the mathematical description of the underlying physics, we turned to a hands‑on activity just before Christmas: using the open‑source Ohmpi device (https://ohmpi.org), we measured the marzipan core of a Christmas stollen and processed the data with the multi‑geophysical modeling and inversion software pyGIMLi (https://www.pygimli.org). Through electrical resistance tomography, the marzipan core—acting as a conductive anomaly in the middle of the stollen—was successfully reconstructed.