Engr Syed Shujaat Ali,Engr Mohsin Iqbal,Engr Yaseen Mahmood,Engr Abdul Farhan,



Climate change,Groundwater recharge,Numerical modeling,Rehabilitation strategy,UHG (Unit Hydrograph),Resistivity Test,Rainfall runoff model WIN TR2,


Climate change is variation in patterns of weather that lasts from decades to centuries. The increasing levels greenhouse gases are playing key role in producing global warming and it has decisive impact on hydrological cycle of earth. The resulting temporal and spatial availability of water makes it imperative to exercise innovative way of water conservation strategy .In this study ground water rehabilitation strategy is proposed for groundwater recharge using excess storm water to be injected in recharge wells at Narai Khuwar. The current groundwater levels of tube wells and well logs of Hayatabad were obtained from Peshawar Development Authority for over 70 tube wells. The hydrological study has been performed using rainfall-runoff model WIN TR 20 by using rainfall data of last 40 years and other hydrological and hydro-geological parameters. The UHG of different time intervals (2 to 200 years) were obtained to determine the availability of water. The subsurface geology was determined by conducting resistivity test. Extensive numerical modeling was performed for current and future water levels in these wells using MODFLOW. The calibrated model was then used in simulation mode and an estimate of water levels in the study area was made for 30 years (2019 - 2049) with and without application of proposed recharge strategy. The study indicates that mitigation measures are required to arrest the rapid water decline in Hayatabad.


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