1Werer Research Center, Ethiopian Agricultural Research Organization (EARO), Addis Ababa, Ethiopia
2Irrigation and Drainage Engineering, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttaranchal, India
The pond geometry and its dimensions are important decision variables which affect initial cost of construction, seepage and evaporation losses. The study in the upper basin of Awash river is conducted to have number of ponds to harvest the run-off from the respective catchment. Based on the nature of catchment area delineated by GIS, three ponds in one and two ponds in second series are considered. The three-fold rectangular pond being the best geometry among square and two-fold rectangular pond is considered for the design. The regression model is developed for optimal design of the pond. Based on catchment harvest and geometry of the pond, the final dimensions and the storage capacities of 5 ponds are designed.
water harvesting, optimization model, pond geometry, storage capacity
