Institution: | (1) Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, IN, USA;(2) D?partement des Sciences de la Terre, Universit? d’Abomey-Calavi, Cotonou, B?nin;(3) Centre Afrika Obota, Cotonou, B?nin;(4) Direction G?n?rale de l’Eau, Cotonou, B?nin |