Innovative Hydrogeophysical Approaches as Aids to Assess Hungarian Groundwater Bodies

The Hungarian water management plan has lately identified 185 groundwater bodies based on the concepts given by European Water Framework Directive. Achieving and maintaining good quantitative chemical status of these is primary importance. It demonstrated how innovative hydrogeophysical methods can be applied successfully to assess or other international bodies. By applying geoelectric methods, horizontal layering large uniform rock units well characterized Wenner–Schlumberger array, also enabling accurate depth determination shallow table. Horizontal variations in type its state described dipole–dipole array or, even better, newly developed quasi-null arrays. Their joint application may very straightforward investigate different aquifer types giving high-resolution resistivity images as input for hydrogeological modeling. In identification porous formations, multivariate statistical interpretation wireline logs using cluster analysis allows reliable lithological separation potential aquifers. clay content estimated robust factor analysis, while their hydraulic properties are directly derived from log. For a more effective interpretation, combination surface borehole geophysical recommended meeting challenges hydrogeology management.