Kamagaté Bamory, Séguis Luc, Favreau Guillaume, Seidel J. L., Descloitres Marc, Affaton P. (2007). Processus et bilan des flux hydriques d_un bassin versant de milieu tropical de socle au Bénin (Donga, haut Ouémé) = Hydrological processes and water balance of a tropical crystalline bedrock catchment in Benin (Donga, upper Ouémé River). Comptes Rendus Géoscience, 339 (6), p. 418-429. ISSN 1631-0713.
Titre du document
Processus et bilan des flux hydriques d_un bassin versant de milieu tropical de socle au Bénin (Donga, haut Ouémé) = Hydrological processes and water balance of a tropical crystalline bedrock catchment in Benin (Donga, upper Ouémé River)
Kamagaté Bamory, Séguis Luc, Favreau Guillaume, Seidel J. L., Descloitres Marc, Affaton P.
Source
Comptes Rendus Géoscience, 2007,
339 (6), p. 418-429 ISSN 1631-0713
Hydrological processes and water balance of a tropical crystalline bedrock catchment in Benin (Donga, upper Oueme River). Hydrodynamic, geochemical, and subsurface geophysical investigations, for two consecutive years with contrasting rainfall 2 conditions, were used to characterize the hydrological processes occurring, and the water balance of a 586-km(2) watershed in Benin (Africa). The water table's monitoring shows that recharge occurs by direct infiltration of rainfall, and represents between 5 to 24% of the annual rainfall. Both surface water outflow, limited to the rainy season, and water chemistry indicate a weak groundwater contribution to river discharge. This implies that the calculated variations in annual runoff coefficients (of 14 and 28%) are mainly governed by surface and subsurface flows. To cite this article: B. Kamagati et al., C. R. Geoscience 339 (2007).
