NUMERICAL SIMULATION MODEL FOR JOINT FLOW OF SURFACE AND GROUNDWATER ALONG THE LOWER GUADALHORCE ALLUVIAL COASTAL VALLEY

Publication: Tecnología del Agua (2012)

Author: Rafael Fernández Gutiérrez-Álamo (Dpt. Of Water at INTECSA-INARSA)

Summary: The basin of the River Guadalhorce supports intense exploitation of its water resources for the urban water supply to a population of some 900,000 inhabitants including the city of Málaga and to cover the needs of over 40,000 hectares of agricultural irrigation as well as servicing the industrial demands and golf courses located in close proximity to the coastal strip.

The limits to the availability of natural resources, aggravated by the partial unavailability of the Guadalhorce reservoir due to salinity issues, have resulted in the system becoming unbalanced during periods of low rainfall leading to difficulties meeting water demands in terms of both quantity and quality and the deterioration of the fluvial environment and overexploitation of aquifers which, in the case of the Lower Guadalhorce alluvial valley, can lead to processes of marine intrusion. This problem has been exacerbated by the channelling of the final kilometres of the river, which involved lowering the level of the riverbed by several metres, thus increasing the vulnerability of alluvial aquifers to this type of processes.

For the purpose of analysing the problems and redefining alternative management strategies to those used up until then, in 2000 the Directorate General for Hydraulic Works and Water Quality awarded a contract to a Temporary Joint Venture led by Intecsa-Inarsa for the “Study of the Joint Use of Surface and Groundwater of the 

Guadalhorce River Basin.” These works ended in 2002. Within the framework, a collaboration agreement was signed with the Higher Technical School of Civil Engineering of the University of A Coruña for the development and application of a numerical simulation model – using the finite element method – for the joint flow, under a transitional scheme, of surface and groundwater throughout the Lower Guadalhorce coastal alluvial valley, a model which should be integrated with other hydrological simulation and resource exploitation system tools. The results of the works carried out by the researchers from said University were subject to much scientific debate, including an article, presented below, which was published in the journal Environmental Geology and in which both the theoretical and conceptual basis of the model is described along with the calibration and validation of the case study.

DOWNLOAD FULL ARTICLE

foto2

INTECSA-INARSA, S.A.

C/ Julián Camarillo 53

28037 | Madrid | Spain

P +34 915 673 800

F +34 915 673 805

general@intecsa-inarsa.es

calidad

Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies.
More information Ok Decline