الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
In terms of the significance of employing Integrated Water Resources Management ”IWRM” in super reclamation projects in Egypt, this research was originated with the impartial of implementing MODFLOW to envisage a strategy for water resources management ”WRM”, where Toshka was taken as a case study. Principally, literature in the WRM, numerical modeling and Lake Bank Filtration ”LBF” were assembled and dissected. Site visits were undertaken to the study area, where data were assembled and analyzed. MODFLOW code in GMS10.1 program was calibrated against measurements, where the incorporated parameters were tuned to force the model to provide similar results to the measured values. Withdrawal strategies were suggested. Assertive with the calibration results, MODFLOW was tooled to simulate the suggested strategies, where the infiltrating water, groundwater level and safe yield were signposted. Results were obtained; investigated and presented. The results emphasized that withdrawal discharges are beneath the safe yield, which would impose a No impact on the groundwater level. Moreover, the results specified that the safe yield in the steady state (i.e., Toshka) is 115.845 m3/sec.
The safe yield (storage) in the modelled area based on the water balance results due to the proposed extraction scenarios for the period from 29/8/2022 and to 1/1/2075. The minimum safe yield during the simulated drought period in scenarios 1, 2, 3, 4 and 5 is 32.7, 33.8, 46.7, 47.3 and 77.0 m3/s respectively. While the maximum is 87.8, 88.78, 100.3, 101.3 and 81.2 m3/s respectively during the period with the maximum water level of the lake. The average safe yield value during the period for the 5 scenarios is 63.8, 64.7, 77.1, 77.7 and 79.0 m3/s respectively over the 50 years. The results show that more infiltrated water is feeding the aquifer due to higher. extraction from the wells and the formed cone of depression due to the positive hydraulic gradient and the high hydraulic conductivity.
Based on MODFLOW simulations, there is an extra 162000 feddans could be implemented on the calculated average safe yield 63 - 78.7 m3/sec.