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Catchments as reactors: a comprehensive approach for water fluxes and solute turnover |
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| Authors: | Peter Grathwohl Hermann Rügner Thomas Wöhling Karsten Osenbrück Marc Schwientek Sebastian Gayler Ute Wollschläger Benny Selle Marion Pause Jens-Olaf Delfs Matthias Grzeschik Ulrich Weller Martin Ivanov Olaf A. Cirpka Ulrich Maier Bertram Kuch Wolfgang Nowak Volker Wulfmeyer Kirsten Warrach-Sagi Thilo Streck Sabine Attinger Lars Bilke Peter Dietrich Jan H. Fleckenstein Thomas Kalbacher Olaf Kolditz Karsten Rink Luis Samaniego Hans-Jörg Vogel Ulrike Werban Georg Teutsch |
| Affiliation: | 1. Water and Earth System Science Competence Cluster (WESS), Keplerstr. 17, 72074, Tübingen, Germany 2. Center of Applied Geoscience, Eberhard Karls University, Tübingen, H?lderlinstr. 12, 72074, Tübingen, Germany 7. UFZ-Helmholtz-Centre for Environmental Research, Permoserstra?e 15, 04318, Leipzig, Germany 3. Institute of Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandt?le 2, 70569, Stuttgart, Germany 4. Institute for Modeling Hydraulic and Environmental Systems, University of Stuttgart, Pfaffenwaldring 61, 70569, Stuttgart, Germany 5. Institute of Physics and Meteorology, University of Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany 6. Institute of Soil Science and Land Evaluation, University of Hohenheim, Emil-Wolff-Strasse 27, 70599, Stuttgart, Germany |
| Abstract: | Sustainable water quality management requires a profound understanding of water fluxes (precipitation, run-off, recharge, etc.) and solute turnover such as retention, reaction, transformation, etc. at the catchment or landscape scale. The Water and Earth System Science competence cluster (WESS, http://www.wess.info/) aims at a holistic analysis of the water cycle coupled to reactive solute transport, including soil–plant–atmosphere and groundwater–surface water interactions. To facilitate exploring the impact of land-use and climate changes on water cycling and water quality, special emphasis is placed on feedbacks between the atmosphere, the land surface, and the subsurface. A major challenge lies in bridging the scales in monitoring and modeling of surface/subsurface versus atmospheric processes. The field work follows the approach of contrasting catchments, i.e. neighboring watersheds with different land use or similar watersheds with different climate. This paper introduces the featured catchments and explains methodologies of WESS by selected examples. |
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