1. Graduate Research Programme on Climate Change and Water Resources (GRP CCWR), West African Science Service Centre on Climate Change and Adapted Land Use (WASCAL), University of Abomey-Calavi, Cotonou, Benin
2. Hydrosciences Research Group, CSIR Natural Resources and the Environment, Pretoria, South Africa
3. Department of Geography, University of Bonn, Bonn, Germany