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TZID:Europe/Berlin
TZUNTIL:20120325T010000Z
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DTSTART:20091025T030000
TZOFFSETFROM:+0200
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RDATE:20101031T030000
RDATE:20111030T030000
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UID:www.bayceer.uni-bayreuth.de-bayceer-t79158id
DTSTAMP:20260824T205409Z
DESCRIPTION:Exchange processes between groundwater (GW) and surface water (
 SW) are important for a wide range of questions in hydrology\, water resou
 rces management and ecology. Besides classical questions in water resource
 s management (e.g. conjunctive use of GW & SW\, bank filtration for drinki
 ng water supply) the interface between GW and SW has recently gained much 
 attention as a catalytic layer for transformations. Fluxes of water\, ener
 gy (e.g. heat) and solutes across the interface between surface- and groun
 dwater can create steep hydraulic\, biogeochemical and thermal gradients t
 hat characterize a highly reactive environment. Stream-aquifer exchange in
 fluences the transport of nutrients and contaminants within the river corr
 idor and controls the supply of heat\, oxygen\, and organic matter to the 
 microorganisms and macroinvertebrates in the streambed sediments. In turn 
 exchange fluxes are governed by hydrologic controls at different spatial (
 e.g. river channel\, alluvial aquifer\, regional groundwater flow) and tem
 poral scales (e.g. individual flow events\, seasonal cycles\, climate chan
 ge). Our mechanistic understanding of the processes and boundary condition
 s that control exchange patterns and the resulting reactions and transform
 ations is only gradually emerging. However\, process based understanding o
 f flow\, transport and reactions in and at the interface between GW and SW
  is a key to better assess the potential for natural attenuation in stream
 s and riparian zones and thus for managing water quality in rivers and ent
 ire catchments. Examples for the refinement\, application and testing of n
 ew methodologies (e.g. DTS\, heat as a natural tracer) to characterize GW-
 SW exchange processes at different spatial and temporal scales are present
 ed. New developments in the simulation of complex exchange processes are o
 utlined and discussed based on applications of physically based numerical 
 models to flow and transport problems in different GW-SW systems. Finally 
 an outlook on new directions in research will be given.  
DTSTART;TZID=Europe/Berlin:20100624T161500
DTEND;TZID=Europe/Berlin:20100624T174500
LOCATION:H6
SUMMARY:Dr. Jan Fleckenstein\, Univ. Bayreuth\, Hydrologie: Patterns and Dy
 namics of Groundwater-Surface Water Exchange\, Characterisation\, Simulati
 on and Implications for Water Quantity and Quality
TRANSP:TRANSPARENT
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