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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1603

Title: PREDICTION OF SEDIMENT INFLOW FOR LEGEDADI RESERVOIR (USING SWAT WATERSHED AND CCHE1D SEDIMENT TRANSPORT MODELS)
Authors: Andualem, Gessese
Advisors: Dr. Yonas Michael
Keywords: CCHE1D
SWAT
Bathymetric Map
Sedimentation
Legedadi
TOPAZ
Watershed
Digitizing
Simulation
Calibration
Validation
Copyright: May-2008
Date Added: 3-Nov-2008
Publisher: Addis Ababa University
Abstract: Reservoirs, especially which are formed by dams on natural water courses are subject to some degree of sediment inflow and deposition. Because of this, they are exposed to sediment-related problems. Legedadi, the main water supply resource of Addis Ababa city, is loosing its capacity due to sedimentation. Bathymetric surveys in 1979 and 1998 have been undertaken to estimate the extent of the sediment in the reservoir and shows that sediments are accumulating at a rate of 0.11Mm3/year for the intervening period. This paper presents the attempts made to assess the amount of sediment inflow and the total quantity which is accommodated to date on Legedadi reservoir using SWAT watershed and CCHE1D sediment transport models. These two models were applied to a variety of sediment studies in different countries like Wyoming East Fork river, Danjangkon reservoir, Mississippi Goodwin Creek water shade, Taiwan Pa-chang…and a good agreement between measured and computed yields is illustrated.
Description: A thesis submitted to the School of Graduate Studies of Addis Ababa University in partial fulfillment of the Degree of Masters of Science in Hydraulics Engineering
URI: http://hdl.handle.net/123456789/1603
Appears in:Thesis - Hydraulics Engineering

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