RELATIONSHIP BETWEEN SURFACE AND UNDERGROUND WATER FLOW IN THE UPPER BANDAMA WATERSHED IN IVORY COAST
Journal Title: Larhyss Journal - Year 2017, Vol 29, Issue 29
Abstract
The Upper Bandama watershed is drained by two major rivers: the Bandama and the Marahoué. At the zone of convergence of these affluents, an unusual behaviour of water flow regime is observed. Namely, water flow decreases from Marabadiassa to Kossou while the flow on the Marahoué increases from Zuénoula to Bouaflé. Significant volume decrease amounting to about 1 billion cubic meters is observed on the Bandama from Marabadiassa to Kossou while half a billion cubic meters of water is gained on the Marahoué from Zuénoula to Bouaflé. Dominant linear geologic fractures in NW-SE and NE-SW directions have been mapped using SPOT imagery. The fracture network is presumed to sustain underground water flow from the Bandama towards the Marahoué. The observed directions of the affluents of the river Bandama highlights a relationship between surface and underground water flow, which may regulate aquifer characteristics.
Authors and Affiliations
KOUAMÉ K. A. | Université Félix Houphouët-Boigny d’Abidjan-Cocody, Unité de Formation et de Recherche des Sciences de la Terre et des Ressources Minières (UFR-STRM) ; Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement (LSTEE) ; 22 BP 582 Abidjan 22 (Côte d’Ivoire), KOUDOU A. | Université Jean Lorougnon Guédé (UJLoG) ; Département des Sciences de l’Environnement ; BP 150 Daloa (Côte d’Ivoire), SOROKOBY V. M. | Université Félix Houphouët-Boigny d’Abidjan-Cocody, Unité de Formation et de Recherche des Sciences de la Terre et des Ressources Minières (UFR-STRM) ; Centre Universitaire de Recherche et d’Application en Télédétection (CURAT) ; 22 BP 801 Abidjan 22 (Côte d’Ivoire), KOUAMÉK. F. | Université Félix Houphouët-Boigny d’Abidjan-Cocody, Unité de Formation et de Recherche des Sciences de la Terre et des Ressources Minières (UFR-STRM) ; Centre Universitaire de Recherche et d’Application en Télédétection (CURAT) ; 22 BP 801 Abidjan 22 (Côte d’Ivoire), KOUASSI A. M. | Institut National Polytechnique Félix Houphouët-Boigny (INP-HB) ; Département des Sciences de la Terre et des Ressources Minières (STeRMi) ; Laboratoire du Génie Civil, des Géosciences et des Sciences Géographiques ; BP 1093 Yamoussoukro (Côte d’Ivoire)
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