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README.md

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 ![Ginette-2](Ginette-2.png)
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-Ginette is a 2-D variably saturated groundwater flow model with integrated 1-D surface flow for the stream. It uses physically-based equations to rigorously simulate fluxes of water, energy and solute transport in porous media. The coupling of fluid flow and heat transfer, accounting for freezing and thawing processes, is implemented in the code for a fully saturated medium. Ginette was initially developed at Metis (UPMC) to deal with interactions between streams and aquifers, as they fluctuate from a connected to a disconnected status. Numerical simulations of experimental laboratory results reproducing such conditions provided the opportunity to test the coupled 1D surface water - 2D variably saturated groundwater code (Rivière et al., 2014). Ginette was then extended to include coupled heat transfer and water flow in saturated porous media and is now jointly developed by Metis and MINES ParisTech (PSL University). The code was compared to experimental data acquired on a complex laboratory system to provide validation on the physical processes and mathematical formulations, in particular for the representation of density change between frozen and liquid water (Rivière et al., 2019). Real-world cryo-hydrogeological paleo-applications, which have been presented in conferences (e.g. Jost, 2011; Jost et al., 2014), were also proposed using Ginette, requiring some additional adaptation to the specific needs of basin-scale calculations.
+Ginette is a 2-D variably saturated groundwater flow model with integrated 1-D surface flow for the stream. It uses physically-based equations to rigorously simulate fluxes of water, energy and solute transport in porous media. The coupling of fluid flow and heat transfer, accounting for freezing and thawing processes, is implemented in the code for a fully saturated medium. Ginette was initially developed at METIS (Sorbonne University) to deal with interactions between streams and aquifers, as they fluctuate from a connected to a disconnected status. Numerical simulations of experimental laboratory results reproducing such conditions provided the opportunity to test the coupled 1D surface water - 2D variably saturated groundwater code (Rivière et al., 2014). Ginette was then extended to include coupled heat transfer and water flow in saturated porous media and is now jointly developed by Metis and MINES ParisTech (PSL University). The code was compared to experimental data acquired on a complex laboratory system to provide validation on the physical processes and mathematical formulations, in particular for the representation of density change between frozen and liquid water (Rivière et al., 2019). Real-world cryo-hydrogeological paleo-applications, which have been presented in conferences (e.g. Jost, 2011; Jost et al., 2014), were also proposed using Ginette, requiring some additional adaptation to the specific needs of basin-scale calculations.
 
 Ginette strives to provide the user with full control over the the simulation. The command files can be written either with a Python script or with an R script.