Author(s): Mohammed Igouzal; Abdellatif Maslouhi

Linked Author(s):

Keywords: Sebou river; hydraulic model; dry season; management

Abstract: In this paper, we develop and test a hydraulic model which can contribute to the management of a reservoir dam on Sebou river and which is situated in the Gharb agricultural zone. The Sebou model is one-dimensional and it uses an implicit finite difference scheme and a friction-factor relation that quantify the role of bed configuration. Flow is influenced not only by the presence of the Lalla Aïchaa reservoir in the downstream end but also by numerous pumping stations used for agriculture along the river. However, the pumped water quantity is not available. Thus, particular attention was assigned to evaluate this variable due to its quantitative importance. The results of the calibration and validation of the model for a dry season in 1997 year are very satisfactory. The model gives values of the water stage at the pumping stations and allows following the evolution of the water reserve available in the dam's reservoir. Despite the lack of data, we had successfully used in this study available measurements and tools like aerial photographs to reach our goal. The model elaborated can represent an efficient management tool and can help in decision making especially in the developing countries like Morocco where hydraulic data are very scarce.

DOI: https://doi.org/10.1080/00221686.2005.9641228

Year: 2005