UTILITY OF GIS APPLICATIONS IN THE STUDY OF THE USE AND WATER QUALITY ON THE PETITE COTE OF SENEGAL

Groundwater is a vital resource for humanity. Nowadays, the climatic deterioration causes depletion by high evaporation of surface water. Thus, most water needs are met by groundwater. This fact is verified in Senegal, which is a Sahelian country. The situation is alarming in the Petite C te of Senegal. The groundwater resources are subject to a plethora of uses because the presence of surface water in the area is only temporary (during winter). The plurality of uses, most of the time wasteful, leads to an overexploitation of groundwater resources. In addition, certain human activities generate pollution of water from aquifers that are already affected by the natural fluorine pollution and salinisation.