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Using GIS, MODFLOW and MODPATH for groundwater management of an alluvial aquifer of the River Sieg, Germany
| Content Provider | Semantic Scholar |
|---|---|
| Author | Michl, C. |
| Copyright Year | 1996 |
| Abstract | During the past years Geographic Information Systems (GIS) have been increasingly applied for geohydrological research studies and water resources assessments. However, the coupling of GIS with geo hydrological models is still a subject for future research. To evaluate the benefits of linking a GIS with the groundwater model MODFLOW, the alluvial sediments of the lower Sieg River catchments were selected for a case study. The aquifer is located east of Bonn. It is bounded by the Rheinische Schiefergebirge in the south and the rivers Sieg and Rhine in the north and west. The study area covers about 45 km2 and groundwater extraction is supporting the water supply of about half a million people. Two-thirds of the groundwater recharge is attributed by stream leakage of the Sieg River and the rest is recharge from infiltrating precipitation. Using MODFLOW, the infiltration parameters of the River Sieg and the hydraulic conductivity were calibrated in a stationary approach. Subsequently, parameters were verified and optimized for a transient model, based on 120 time steps of 1 month. The particle pathlines were calculated using the groundwater particle tracking code MODPATH. MODFLOW simulated the groundwater dynamics in the aquifer with good fit to the observed data for steady-state and transient conditions and grid-based leakage terms could be defined. Future research will focus on the linkage of MODBRANCH and MODFLOW for a better simulation of the river dynamics and the integration of the GIS ARC/INFO. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://hydrologie.org/redbooks/a235/iahs_235_0551.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
