1. National Water Institute University of Abomey Calavi Abomey Calavi Atlantic Benin
2. Helmholtz Centre Potsdam German Research Centre for Geosciences (GFZ), Section Hydrology Potsdam Germany
3. Ecole d'Horticulture et d'Aménagement des espaces Verts Université Nationale d'Agriculture Kétou Benin
4. Applied Science and Technology Research Institute–IRSAT/CNRST Ouagadougou Burkina Faso