Helicopter-Borne Electromagnetic Groundwater Exploration Survey In The Kuiseb Dune Area, Central Namib Desert

As part of a groundwater exploration project, BGR conducted an aerogeophysical survey in the Kuiseb Dune area, southeast of Walvis Bay, Namibia, in 1992. The helicopter-borne electromagnetic system (DIGHEM III) provided three frequency HEM data, which were inverted into the parameters of homogeneous or layered half-space models. The resistivity data revealed a network of palaeo channels of the Kuiseb River beneath the sand cover, and several freshwater lenses along the coast.