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Unformatted text preview: strongly integrated model to simulate coupled surface /
subsurface plane flows, such as a river valley with stream, floodplain, and free surface aquifer.
Surface flow is modeled via the diffusive wave equation, and subsurface flow is modeled using the
Dupuit-Boussinesq equation. This coupled model is applied to the Garonne river valley in the
Toulouse-Moissac region (France). This application has required the elaboration of a geostatistical
interpolation technique that produces an Integrated Digital Elevation Model (‘IDEM’). The IDEM
incorporates a high resolution representation of river channels into the topographic DEM. Finally,
beyond this specific application, the coupled surface / subsurface model is generalized to the case of
salt / fresh density coupling, where the aquifer is subject to saltwater intrusion near a river mouth or
Porous media & hydrogeology
Groundwater & aquifers
Integrated Digital Elevation Model (IDEM, DEM)
Dupuit-Boussinesq equation Surface / subsurface coupling
Finite volumes 2D / 3D...
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This document was uploaded on 01/19/2014.
- Winter '14
- The Land, In French