Hydrogeological investigation of carbonate-karst formations with special emphasis on the hypogene karstification processes and spring discharge.

Application of geophysical techniques in hydrogeological problems: site characterisation and delineation of aquifers, estimation of hydrogeological parameters and monitoring of groundwater flow.

Analysis of hydrogeological aspects of renewable geothermal energy: groundwater flow pattern and heat accumulation, replenishment and rejuvenation of geothermal reservoirs, pressure conditions and perspective regions.

Analysis of hydrogeological processes in sedimentary drainage basins, reconstruction of hierarchically nested groundwater flow systems with the help of field data and numerical simulation, as well as the flowing groundwater-related natural hydrological, botanical, geomorphological and transport manifestations.