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- W2169224070 abstract "Ethiopia loses annually an estimated 111 billion cubic meters of water as surface runoff from its 12 major river basins. This paperquantifies the amount of monthly and annually lost rainwater through surface runoff from the Hantebet basin, which has an arealcoverage of 24.4 km2. The hydrology of the area was characterized based on land use, soil, slope, rainfall, temperature,evapotranspiration, and runoff. In order to determine the basic hydrologic parameters, meteorological data was collected from thenearby stations. The rainfall coefficient method was used to determine the monthly distribution of rainfall in the studied area and thento distinguish between rainy months and dry months. The Thornthwaite method and Thornthwaite water balance model were used fordetermination of the potential evapotranspiration and actual evapotranspiration, respectively, of the basin. For runoff estimation, themethods employed were the curve number and runoff coefficient.The mean annual rainfall of the basin is 632.08 mm. The basin is characterized by two rainy seasons and three dry seasons during theyear. The two rainy seasons and the three dry seasons in total have six months, respectively. The total amount of rains that comesduring the rainy months is 590.61 mm. Small rains occur in the three months (March, April and September) of rainy seasons and theamount is 115.54 mm. Big rains occur in the remaining three months (June, July and August) of the rainy season with moderate andvery high concentration and the total amount is 475.07 mm: 54.11 mm occurs with moderate concentration in June whereas 420.96mm with very high concentration in July and August. The rain in the dry months is 41.46 mm. The mean annual actualevapotranspiration of the basin is 336.7 mm. The mean annual runoff is 12.74 million cubic meters. Of which 92.7 % is generatedduring the rainy months while 7.3 % is generated during the dry months. Among the rainy months, 79.2 % of the runoff is comingfrom the big rainy months and 13.5 % from small rainy months. The big rains that occur with very high concentration in July andAugust produce 72. 2 % the mean annual runoff of the basin." @default.
- W2169224070 created "2016-06-24" @default.
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- W2169224070 date "2006-04-01" @default.
- W2169224070 modified "2023-09-28" @default.
- W2169224070 title "Surface Waters Potential of the Hantebet Basin, Tigray, Norhtern Ethiopia" @default.
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