Sediment control in wadi irrigation systems

Sediment control in wadi irrigation systems.
Lawrence, P.
In: Subregional Expert Consultation on Wadi Development for Agriculture in the Natural Yemen , 6-10 December 1987 , Aden, PDR Yemen .

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Abstract:Hydraulics research has monitored the design and performance of irrigation off takes for three wadi systems (Rima, Zabid and Mawr) in the Yemen Arab Republic. This paper is drawn from the experience gained during these projeets, and from research into improved design methods for sediment control structures. The wadis thatcross the Yemen coastal plain (Tihama) have steep, (0.5 to 1 percent) bedslopes.and flow inaseries of multipeaked flash floods. Discharges can rise to more than 1 000 m'/s. returning to less Jtan 1 m'ls in 4 to 10 hours, and stream velocities can exceed 4 m3/s (Lawrence 1982).
Item Type:Conference or Workshop Item (Paper)
Subjects:Floods > General
Water > General
ID Code:365
Deposited On:19 Nov 2009 16:42
Last Modified:19 Nov 2009 16:42

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