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Track: Water Resources
Stefan Kaden
WASY Institute for Water Resources Planning
Waltersdorfer Strasse 105
Berlin, D-12526
GERMANY
Telephone: 011-49-30-6799980
Fax: 011-49-30-67999899
E-mail: stefan@wasy.de
Michels Ingo
GIS-Based Water Resources Modeling
Water resources modeling is one of the most challenging aspects in GIS applications. The reasons are the varying scales in space, the need for coupling of different modeling systems, the varying time dependency of flow and transport processes, and finally the spatial dimension (3D) of groundwater flow. The authors will review their experiences in GIS-based water resources modeling, starting in 1990 with the first attempts to couple ArcInfo with the groundwater simulation system FEFLOW presenting the recent developments of GIS-based coupled surface water and groundwater models with GIS (ArcInfo and ArcView), and 3D visualization and conclude by looking at future developments. First, different techniques for GIS and model coupling will be discussed and illustrated based on practical examples. The ArcInfo-based tools for data preprocessing in the groundwater simulation system FEFLOW will be demonstrated in detail. Second, a regional water management study in the Oder wetlands will be described. The
region is characterized by a shallow groundwater table, floodplains, and strong interactions between surface water and groundwater flow. Changes in land use after the German unification and planned reconstruction of the navigation waterways in the region are expected to result in drastic changes in the water resources system. To analyze these changes and develop sustainable strategies for future development of an integration runoff-streamflow-groundwater flow (3D) model system has been developed, using GIS for data processing. Modeling results and experiences will be discussed. An on-line computer demonstration is planned.
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