GIS-based hydrogeological databases and groundwater modelling |
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| Authors: | Radu Gogu Guy Carabin Vincent Hallet Valerie Peters Alain Dassargues |
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| Institution: | (1) Department of Cartography, Swiss Federal Institute of Technology (ETH), ETH Hoenggerberg, 8093 Zurich, Switzerland,;(2) University of Liege, Laboratory of Engineering Geology, Hydrogeology and Geophysical Prospecting, B19 Sart Tilman, 4000 Liege, Belgium, |
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| Abstract: | Reliability and validity of groundwater analysis strongly depend on the availability of large volumes of high-quality data.
Putting all data into a coherent and logical structure supported by a computing environment helps ensure validity and availability
and provides a powerful tool for hydrogeological studies. A hydrogeological geographic information system (GIS) database that
offers facilities for groundwater-vulnerability analysis and hydrogeological modelling has been designed in Belgium for the
Walloon region. Data from five river basins, chosen for their contrasting hydrogeological characteristics, have been included
in the database, and a set of applications that have been developed now allow further advances. Interest is growing in the
potential for integrating GIS technology and groundwater simulation models. A "loose-coupling" tool was created between the
spatial-database scheme and the groundwater numerical model interface GMS (Groundwater Modelling System). Following time and
spatial queries, the hydrogeological data stored in the database can be easily used within different groundwater numerical
models.
Electronic Publication |
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| Keywords: | Groundwater management Database management Geographic Information Systems Numerical modelling Belgium |
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