Articles | Volume 22, issue 11
Hydrol. Earth Syst. Sci., 22, 5867–5888, 2018
Hydrol. Earth Syst. Sci., 22, 5867–5888, 2018

Research article 14 Nov 2018

Research article | 14 Nov 2018

Hydrological functioning of western African inland valleys explored with a critical zone model

Basile Hector et al.

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Cited articles

Andriesse, W., Fresco, L. O., Van Duivenbooden, N., and Windmeijer, P. N.: Multi-scale characterization of inland valley agro-ecosystems in West Africa, NJAS Wagening, J. Life Sci., 42, 159–179, 1994.
AMMA-CATCH: AMMA-CATCH: a hydrological, meteorological and ecological observatory on West Africa, IRD, CNRS-INSU, OSUG, OMP, OREME,, 1990.
AMMA-CATCH: AMMA-CATCH observatory: upper Oueme mesoscale site (14 000 km2) in the sudanian climate zone, Benin, IRD, CNRS-INSU, OSUG, OMP, OREME, doi:10.17178/AMMA-CATCH.benin, 1996.
AMMA-CATCH: Precipitation dataset (5 minutes rainfall), over the Donga watershed (600 km2), Benin, IRD, CNRS-INSU, OSUG, OMP, OREME,, 1999.
AMMA-CATCH: Surface flux dataset (including meteorological data, radiative budget, surface energy, water vapor and carbon fluxes), within the Donga watershed (600 km2), Benin, IRD, CNRS-INSU, OSUG, OMP, OREME,, 2005a.
Short summary
The hydrological functioning of western African headwater wetlands remains poorly understood, despite their potential for small-scale farming and their role in streamflow production. We found that land cover changes significantly affect water budgets, and pedo-geological features control dry season baseflow. These are the results of virtual experiments with a physically based critical zone model evaluated against streamflow, evapotranspiration, soil moisture, water table and water storage data.