|Investigation of fast groundwater responses and groundwater
– surface water
of water flow pathways from groundwater to streams is
essential for the optimal protection
of water resources as well as for eco-hydrological studies.
This study addresses groundwater flow
processes at a hillslope and near-stream shallow groundwater
system in the Black Forest Mountains,
southwestern Germany. The changing spatial and temporal
flow patterns during differing hydrological
situations were examined using a combined hydraulic, hydrochemical
and geophysical approach.
At a groundwater test site 12 wells were installed and
the discharge at a near-stream saturated area
as well as several natural tracers (deuterium, dissolved
silica, and major anions and cations) were
observed at different locations during high and low flows.
In addition, geoelectrical measurements
(2-D resistivity mapping) were performed along several
transects. The importance of the groundwater
component during flood formation was clearly demonstrated.
In addition, groundwater-surface water
interactions are a special stream reach was explored.
- Uhlenbrook S., Hoeg S., 2003: Quantifying uncertainties
in tracer-based hydrograph separations -
A case study for two, three and five component hydrograph
separations in a mountainous catchment.
Hydrological Processes, Volume 17, Issue 2, 431-453.
- Wenninger J. Uhlenbrook S., Tilch J., Leibundgut
Ch. 2003: Experimental evidences of fast
groundwater responses in a hillslope / floodplain area.
Hydrological Processes, in review.