Numerical modelling of surfacewater/groundwater flows for freshwater/saltwater hydrology: the case of the alluvial coastal aquifer of the Low Guadalhorce River, Malaga, Spain

A numerical solution to integrated water flows: Application to the flooding of an open pit mine at the Barcés river catchment – La Coruña, Spain

“…The MELEF model for continental and coastal catchment applications couples surface and subsurface fresh and saltwater regional hydrology by a joint finite element solver for the saturated porous media flows of fresh and saltwater through an immiscible sharp interface and a diffusive wave approach that describes the surface flow (Padilla et al, 2008).…”

“…In this field, a new methodology of finite element modelling has been developed (MELEF model, ''Modèle d'ÉLÉments Finis'' in French) which considers novel modelling features of the joint surface and ground water regional flows of continental freshwater and coastal salt water intrusion from the sea by means of an immiscible fresh/salt water interface reliable for different kinds of watersheds and environmental problems (Padilla and Cruz-Sanjulián, 1997;Padilla et al, 2008).…”

A coupled FE model for the joint resolution of the shallow water and the groundwater flow equations

“…Some important details of the interaction between both kinds of flow have been explained in Sophocleous (2002). Some examples of these coupled models are proposed by Gunduz and Aral (2005), focusing on the interactions between rivers and aquifers, by Padilla et al (2008) presenting the calibrated model MELEF, or by Camporese et al (2009) who also solve the Richards equation, describing variably saturated porous media. Another example can be found in Kollet and Maxwell (2006) that applies upper boundary conditions, avoiding reliance on some form of exchange flux by using the conductance concept.…”

“…This equation incorporates aquifer features such as conductivity and porosity, and also assumes that the vertical dimension of the fluid is small compared to the horizontal ones. The model is based upon that of Padilla et al (2008). Both models have been validated separately with some benchmark problems and some examples are shown.…”

Hydrochemical characteristics and salinization processes of groundwater in the shallow aquifer of Eastern Laizhou Bay, China

“…The salinization of groundwater has been investigated using variety of methods such as geophysical surveys (Elyaouti et al, 2009), numerical modelling (Giambastiani et al, 2007;He et al, 2008;Padilla et al, 2008), isotopic methods (Abou Zakhem and Hafez, 2006;Carol et al, 2009), hydrochemical surveys (Kim et al 2005;Mondal et al, 2010) and multivariate statistical techniques ( Liu et al, 2003;Kim et al 2005;Papatheodorou et al, 2007). Hydrochemical surveys, as the most important and successful tool for investigating the salinization processes of groundwater to elucidate the source of salinity and to understand the hydrochemical conditions, have been performed in many coastal areas.…”