Apport de la tÈlÈdÈtection et des SIG dans lidentification des ressources en eau souterraine dans la rÈgion de Daoukro (Centre -Est de la CÙte dIvoire) (Contribution of the remote sensing and GIS in the underground identification of the water resources in Daoukro region ( east-central CÙte d'Ivoire ))

The access to drinking water, in particular in the rural areas and semi -rural in Ivory Coast, constitutes a paramount factor in economic development, the improvement of the standard of living of the populations and their stabilization. The present study aims to raise the unequal distribution of the water supply points for the area of Daoukro and to make a contribution in the research of the zones favorable with the establishment of the productive water supply points in ord er to allow a good cover of the water needs. The adopted methodological approach is summarized in two stages: initially design of the chart of the water requirements (the access to drinking water) which highlights the zones of deficits followed by the cartography of the sites of establishment of the future water supply points. The knowledge of the space distribution of the population and amongst water supply point by locality made it possible to calculate the access to drinking water of the populations. Theanalysis of the chart set of themes of the storage areas reveals that nearly 80% of the total surface areas are occupied by zones favorable to the existence of groundwater. The various suitable zones with the establishment of work to large flows were char ted and more than 150 sites favorable to the futu re establishments were selected .