Climate change impact on surface water sources of Addis Ababa : a case study in Legedadi-Dire-Gefersa catchments and reservoirs
Date
2012-01
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School of Graduate Study, Addis Ababa University
Abstract
The study reassesses water potential of the three catchment areas that serve Addis Ababa. The city is located in a high rainfall area of 1,000 mm yearly rainfall or more, which falls during a short time period and leads to impounding a large amount of water in the three to four months of the rainy seasons, which then provide water for the rest of the year. The hydrologic and climatic data of the catchments are considered for water balance analysis of the three reservoirs. Findings argue for the necessity of additional storage and treatment plants capacities.
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Keywords
CALIBRATION, CATCHMENT HYDROLOGY, CLIMATE CHANGE, HBV, LEGEDADI-DIRE-GEFERSA, REVERSE WATER BALANCE, RESERVOIR INFLOW, TREND, VALIDATION, ETHIOPIA--ADDIS ABABA, HYDROLOGY, HYDROLOGICAL CYCLE, SURFACE WATER, RESERVOIRS, RUNOFF WATER, LAND USE, RAIN, WATER MANAGEMENT, WATER TREATMENT, WATER STORAGE, ENVIRONMENTAL DEGRADATION, CLIMATE CHANGE ADAPTATION, HYDROLOGIC MODELS, STATISTICAL TABLES