UWI Interim Meeting Common topic presentation 19.05.17 Groundwater – surface water interactions in urban areas JONAS SCHAPER 1,2 , T ABEA BROECKER 3 , MIKAEL GILLEFALK 1 , F ATIMA AL-A TMAN 2 1 Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany 2 Technical University Berlin, Department of Water Quality Control, Strasse des 17. Juni 135, 10623 Berlin, Germany 3 Chair of Water Resources Management and Modeling of Hydrosystems,Gustav-Meyer-Allee 25, 13355 Berlin, Germany
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UWI Interim MeetingCommon topic presentation
19.05.17
Groundwater – surface water interactions in urban areas
JONAS SCHAPER1,2, TABEA BROECKER3, MIKAEL GILLEFALK1, FATIMA AL- ATMAN21 Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany
2 Technical University Berlin, Department of Water Quality Control, Strasse des 17. Juni 135, 10623 Berlin, Germany3 Chair of Water Resources Management and Modeling of Hydrosystems,Gustav-Meyer-Allee 25, 13355 Berlin, Germany
Slide 2
GW-SW interactions in urban areas
Key processes in hydrological cycles• water quantity • water quality
Winter et al. 2008 USGS, circ1139
Water quality in urban areas• controls ecosystem health • drinking water resources• recreational activities
Urban water bodies• “urban stream syndrome”• anthropogenic imprint on chemical quality and hydrology
• high loads of nutrients, and trace contaminants (metals, organics etc. )• altered flow/exchange patterns (water tables, abstraction,
morphology etc.)
Slide 3
River Erpe – typical urban stream
Loosing urban stream that receives WWTP effluent• elevated SW water table• potential threat to GW?• fate of trace organic compounds such as ICM?
Slide 4
Potential mechanisms
Physical processes Chemical processes
Biological processes
Lake water quality
Bank filtration
Macrophyte disappearance
Water table lowering- Increased wind exposure- Bottom freezing