Jointly with the Namibian Hydrogeological Consulting firm BIWAC (Bittner Water Consult) a working group on resilience of geohydrological systems at the Institute of Hydrology in Freiburg with Vera Marx, Pablo Davila and Simon Frey, led by Christoph Külls, is developing an integrated geohydrological model for that region. This model will become a management tool for the Department of Water Affairs in Namibia and for the Geological Survey. The model development is funded and supported by the BGR/Germany.