Résumé
To face the difficulties involved in supplying freshwater to Abidjan (Côte d’Ivoire), the Aghien Lagoon is a potential resource for production of drinking water. A hydro-meteorological network was installed with the objective of assessing the sustainability of the lagoon in terms of both quantity and quality. The automatic measurement of the water level is converted into a flow rate by means of a flow height rating curve established by gauging.