Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 372159
Title The hydrology of inland valleys in the sub-humid zone of West Africa: rainfall-runoff processes in the M'be experimental watershed
Author(s) Masiyandima, M.C.; Giesen, N. van de; Diatta, S.; Windmeijer, P.N.; Steenhuis, T.S.
Source Hydrological Processes 17 (2003)6. - ISSN 0885-6087 - p. 1213 - 1225.
DOI https://doi.org/10.1002/hyp.1191
Department(s) International Agricultural Centre
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) hydrograph separation - generation - model - flow
Abstract Inland valleys with wet lowlands are an important water source for farming communities in the sub-humid zone of West Africa. An inland valley and surrounding contributing watershed area located in the sub-humid zone near M'bé in central Côte d'Ivoire was instrumented to study surface runoff and base flow mechanisms. Four flumes at different distances down the main stream and more than 100 piezometers were installed. Measurements were taken during two rainfall seasons in 1998 and 1999. Under initial wet conditions, a typical single-peak hydrograph was observed. Under low antecedent moisture conditions, however, runoff was characterized by a double-peaked hydrograph. The first peak, which occurred during the storm, was caused by rain falling on the saturated valley bottom. The second peak was delayed by minutes to hours from the first peak and consisted of rain flowing via the subsurface of the hydromorphic zone that surrounds the valley bottom. The duration of the delay was a function of the water table depth in the hydromorphic zone before the storm. The volume of the second peak constituted the largest portion of the stream flow
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