Hydrogeological field studies
Assessment of groundwater status according to EU Water Framework Directives, including their associated guidelines, focusses increasingly not only on drinking water supply, but also on environmental objectives for aquatic associated and groundwater dependent terrestrial ecosystems. Assessments utilize hydrogeological methods of characterization such as geological, geophysical, geochemical, and hydraulic measurements below ground surface. These methods disclose conditions regarding groundwater flow and - velocity (age), its quantitative and chemical status, as well as its spatial and temporal evolution and impact on ecosystems.
In relation to this, GEUS´core areas are:
- Optimized and integrated monitoring and modelling of groundwater quantity and quality, e.g. in relation to environmental objectives for ecosystems
- Deliniation of saltwater and freshwater boundaries in aquifers
- Characterization of groundwater-surface water interaction e.g. in relation to associated and dependent terrestrial ecosystems
- Characterization and evaluation of fracture transport in till as well as in limestone
- Borehole logging for evaluation of the physical and chemical characteristics of aquifers and aquitards (groundwater bodies)
- Hydrological investigations for final subsurface deposition of radioactive waste
- Level-determined sampling of groundwater in order to analyze groundwater
chemistry and age (e.g. in cooperation with leading European and American
Current projects: (in alphabetic order)
- BaltCICA: Climate Change: Impacts, costs and adaptation in the Baltic Sea Region. Contact: Klaus Hinsby.
- CLEAR: Lake restoration. Contact: Bertel Nilsson.
- CLIWAT: Climate and Water - a transnational project in the North Sea Region. Contact: Klaus
- GATØ and GNOI: Groundwater Dependent Terrestrial Ecosystems and Groundwater-Nature-Surface water interactions. Contact: Bertel Nilsson.
- SaltCoast: Salt water intrusion in groundwater aquifers in low-lying coastal areas - effects of former and future sea level changes. Contact: Torben Sonnenborg.
- Soils2Sea: Reducing nutrient loadings from agricultural soils to the Baltic Sea via groundwater and streams. Contact: Jens Christian Refsgaard.
- TReNDS: Transport and Redution of Nitratet in Danish landscapes at various Scales. Contakt: Anker Lajer Højberg.
- Water4Coast: Assessment of hydrological barriers for control of salt water intrusion into groundwater auifers in coastal areas under a changed climate. Contact: Klaus Hinsby.
- Geophysical borehole logging.
- Sampling screened and open wells, including leveled sampling in long screens and open wells
- Measurements of hydraulic conductivity