Modelling water flow in a complex watershed in humid a tropical area using SWAT: a case study of Taabo watershed in Ivory Coast

Contribution of Agro-Hydrological Modeling in the Evaluation of Water Availability of an Ungauged Basin Reservoir in Côte d’Ivoire: Case of the Loka Reservoir in Bouaké

“…It records an annual growth rate of 0.95% with a population that has increased from 461,617 inhabitants in 1998 to 536,719 inhabitants in 2014 [8]. Among other factors of this strong demographic growth, the 2011 post-election crisis combined with the good forest cover of Bandama watershed [17] [18] [19] and [20]. With this high population density, the drinking water supply of Bouaké city is provided for 80% by surface water from three reservoirs (Kan, Gonfreville and Loka).…”

“…The model used in this study is called SWAT "Soil and Water Assessment Tool" [21]. SWAT was developed by researchers at the United States Department of Agriculture (USDA) [20]. The choice of this model in this study is largely due to its ability to easily reproduce water cycle in a simplified manner in highly anthropized and ungauged watersheds [22].…”

“…Other than the detail of the different types of crops, there are several small hydro-agricultural dams upstream of the basin, which were not taken into account during the implementation. The presence of these reservoirs upstream of the watershed changes the spatial availability of the water resource [20]. Other drawbacks of SWAT that could justify the dephasing of hydrographs are linked to the spatial distribution of climate stations [20] [30] and to unobservable data, notably the empiricism of SWAT model [53].…”

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

“…The Kossou lake formed after building the dam in 1971. The lake has a length, area, and an estimated volume of 150 km, 1855 km 2 and 28.8 × 109 m 3 , respectively, at full capacity [33,34]. The Taboo lake is 120 km downstream of the Kossou Dam, formed later in 1975 after the construction of the dam (Figure 1).…”

“…The Taboo lake is 120 km downstream of the Kossou Dam, formed later in 1975 after the construction of the dam (Figure 1). The area and stock volume of the Taabo Lake are about 69 km 2 and stocks and 630 × 106 m 3 , respectively [33][34][35]. The Taabo Dam catchment area is about 59,506.66 km 2 , in which 2975.33 km 2 (about 0.05%) is located in Mali.…”