Control network (/T for the investigation of the marine intrusion in Castell de Ferro (Granada, Spain)

The detection in every moment of the interphase (fresh/salt water) implies a great advantage controlling the advance of the marine intrusion. In this respect, the simultaneous and continuous measurement of the conductivity and the temperature in a sufficient number of borings, looks like the very best solution for this control. This publication shows the experience achieved by the Instituto Tecnológico Geominero de Espafia (I.T.G.E) and the Engineering Geology Department of the Madrid School of Mines in the coastal aquifer of the Gualchos in Caltell de Ferro, Granada province, where a control network was designed, optimised and installed. Through the analytic investigation of the results, a series of mathematic approximations have been obtained in a fast and simple way to show the possible processes of advance or regression of the sea interphase.