Evaluation of water demand and supply in lower Harirud River Basin, Afghanistan | |
| Author | Hamim, Rateb |
| Call Number | AIT Thesis no.WM-17-07 |
| Subject(s) | Water resources management--Afghanistan--Harirud Basin Water demand management--Afghanistan--Harirud Basin |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Water Engineering and Management |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. WM-17-07 |
| Abstract | This research has been done to evaluate the water demand and surface water availability of Lower Harirud river basin. Water demand for the three sectors (Irrigation, Hydropower and Environmental ) has been estimated by CROPWAT , Hydropower generation formula and Thenant method respectively. SWAT model has been app lied to find the surface water availability of Harirud river basin and WEAP ( Water Evaluation and Planning) model was applied for simulating of Salam reservoir operation under different scenarios to evaluate the supply and demand gap of the Lower Harirud river basin. Almost 85000 ha of Lower Harirud land s with the annual irrigation demand of 1209 MCM is cultivating and irrigating by Harirud river in six districts located downstream of Salma dam. Environmental flow requirement for protecting the natural reserve and preserve the ecosystem for the river system has been estimated 100 MCM /yr and wat er demand for generating 833 GWh /yr for the lower Harirud has been estimated based on the Salam power plant specifications . Hydrological model , Soil and Water Assessment Tool ( SWAT ) was applied for hydrological analysis of the basin. Calibration and validation of the model has been done based on the observed daily discharge of Tirpol gage station for period (2010 - 2014) with good performances an d acceptable result s. For the normal year, 1740 MCM /yr surface water for main river at Tagaaw Ghaza station (closed to Salma reservoir ) and three major rivers has been found . This amount is increasing to 2300 MCM /yr in wet years and decreasing to 1330 MCM /yr in dry years. WEAP model was applied to evaluate water supply and demand gap under different reservoir operating scenario . Beside the dam release, streamflow of three major tributaries was defined and included to the model for better performance and reliability. Total of 33, 49 and 13 % of shortages has been observed for normal, dry and wet years respectively for irrigation . Annual of 82 GWh of electricity has been generated by Salma power plant which is covering 10 % of annual energy demand of the basin. Environmental flow requirement for Tirpol has been already considered as a demand with first priority and fully satisfied. The output of this research will help planners and policy makers to optimize water resources systems in Lower Harirud river basin. |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. WM-17-07 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Shrestha, Sangam |
| Examination Committee(s) | Babel, Mukand Singh;Jourdain, Damien;Andriys, Sanyogita |
| Scholarship Donor(s) | AFG Western Basin Resources Management Project;AIT Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2017 |