Monitoring, assessment and modelling using water quality data in the Saale River Basin, Germany |
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Authors: | Klaus Bongartz Timothy D Steele Martina Baborowski Karl-Erich Lindenschmidt |
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Institution: | (1) Friedrich-Schiller-University Jena, Loebdergraben 32, 07743 Jena, Germany;(2) TDS Consulting Inc., 595 West Meadow Rd., Evergreen, CO 80439, USA;(3) Helmholtz Centre for Environmental Research – UFZ, Brückstr. 3a, 39114 Magdeburg, Germany;(4) GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany |
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Abstract: | The European Water Framework Directive (WFD) is the overall driver for this environmental study and currently requires the
identification of patterns and sources of pollution (monitoring) to support objective ecological sound decision making and
specific measures to enhance river water quality (modelling). The purpose of this paper is to demonstrate in a case study
the interrelationship between (1) hydrologic and water quality monitoring data for river basin characterization and (2) modelling
applications to assess resources management alternatives. The study deals with monitoring assessment and modelling of river
water quality data of the main stem Saale River and its principal tributaries. For a period of 6 years the data, which was
sampled by Environmental Agencies of the German states of Thuringia, Saxony and Saxony-Anhalt, was investigated to assess
sources and indicators of pollution. In addition to the assessment a modelling exercise of the routing of different pollutants
was carried out in the lower part of the test basin. The modelling is a tool to facilitate the evaluation of alternative measures
to reduce contaminant loadings and improve ecological status of a water body as required by WFD. The transport of suspended
solids, salts and heavy metals was modelled along a selected Saale reach under strong anthropogenic influence in terms of
contaminants and river morphology between the city of Halle and the confluence with the Elbe River. The simulations were carried
out with the model WASP5 which is a dynamic flood-routing and water quality model package developed by the US Environmental
Protection Agency. |
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Keywords: | Chloride Nitrate Zinc River water quality River basin management Saale River |
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