Annual Flow Variations in the Nile River System

by Mamdouh Shahin, Intl Inst for Hydr. and Environ., Eng., Delft, Netherlands,

Document Type: Proceeding Paper

Part of: Hydraulics/Hydrology of Arid Lands (H²AL)


The annual flow series of the Nile River System at some key gauging stations for the period 1912-1988 are presented and discussed. The relatively stable period, pre-1961, has helped establish relationships between the flows at the different sites for flood forecasting. The rise and the decline in the annual rainfall, both after 1961, in the Equatorial Lakes Plateau and the Ethiopian Plateau, respectively have resulted in non-homogeneity in the series. The long-term trend in the water level series since 621 Ad near Cairo, Egypt is briefly discussed.

Subject Headings: River flow | River systems | Streamflow | Flow measurement | Fluid flow | Floods | Forecasting | Rainfall | Nile River | Egypt | Africa | Middle East

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