The Niger River catchment – Development of a regional groundwater monitoring network

Kolja Bosch1, Abdoulahi Abou2, Didier Sèyivè Zinsou2, Hamissou Abdourahamane Djibo2
1 Grundwasserressourcen - Beschaffenheit und Dynamik, Bundesanstalt für Geowissenschften und Rohstoffe
2 Niger Basin Authority

P 11.4 in Beiträge zur Hydrogeologie Südamerikas und Afrikas

The Niger River catchment is located in the western Sahel Zone and covers an area of 2,170,000 km².  104.5 million people are living in the catchment area which has been characterized by alternating episodes of droughts and abundant rainfalls in the last century (Niger Basin Authority, 2005). In order to establish a transboundary groundwater management for the nine member countries (Guinea, Mali, Ivory Coast, Burkina Faso, Niger, Benin, Nigeria, Cameroon and Chad) a regional groundwater monitoring network is aspired by the Niger Basin Authority (NBA), which forms the institutional body for the regional cooperation and decision making on integrated water management in the catchment area. The conception of the regional monitoring network is based on the aggregation and the extension of national groundwater monitoring networks with focus on transboundary aquifers.

We present hydrogeological data and interpretations derived from the regional groundwater network and from the associated field work in the Iullemeden and Kandi Basins. The data were produced in the frame of a bilateral cooperation project financed by the Federal Ministry of Cooperation and Development between the NBA and the German Federal Institute for Geosciences and Natural Resources (BGR).

Niger Basin Authority (2005): Rapport de synthèse régionale des études multisectorielles nationales. 1-106; Niamey (Niger).