Applied Water Science ( IF 5.7 ) Pub Date : 2024-11-08 , DOI: 10.1007/s13201-024-02306-z Hickmat Hossen, Ahmed S. Nour-Eldeen, Ismail Abd-Elaty, Ali M. Hamdan, Abdelazim Negm, Mohamed Elsahabi
Groundwater levels vary from region to another and sometimes in different zones in the same country due to different boundary conditions and extraction rates. Therefore, understanding intricate aquifer systems and predicting how they will react to hydrological changes require the use of groundwater models. In Egypt, the groundwater levels in the Nile Delta aquifer decrease causing problems to the delta ecosystem while it is rising in Aswan area due to the presence of Nasser Lake causing several damages to the city’s buildings and infrastructures. In order to maximize its benefits and lessen the harm brought on by inadequate groundwater management in the city of Aswan, the height of the groundwater level in that city was examined, appraised, and groundwater management scenarios were established in this study. To achieve the objectives of the study, a simulation of Aswan aquifer’s groundwater system is built based on a quasi-three-dimensional transient groundwater flow model using MODFLOW. The model was calibrated and verified. Four management scenarios are tested. The fifth scenario, in this scenario, the four scenarios combined together at the same time and with the same conditions and ratios were proposed to be implemented. The results of the proposal to implement the four scenarios together showed that the rates of decline in groundwater levels in the last stage will be 12.44%. The study results reveal that a better understanding of the simulated long-term average spatial distribution of water balance components is useful for managing and planning the available water resources in the Aswan aquifer.
中文翻译:
阿斯旺市地下水测井的创新管理策略,并利用建模技术实现其效益的最大化
由于边界条件和开采率不同,地下水位因地区而异,有时在同一国家的不同区域也有所不同。因此,了解错综复杂的含水层系统并预测它们将如何对水文变化做出反应,需要使用地下水模型。在埃及,尼罗河三角洲含水层的地下水位下降,给三角洲生态系统带来问题,而阿斯旺地区的地下水位则由于纳赛尔湖的存在对城市的建筑物和基础设施造成了多项破坏,地下水位正在上升。为了最大限度地发挥其效益并减少阿斯旺市地下水管理不善带来的危害,本研究对该市的地下水位高度进行了检查、评估,并建立了地下水管理方案。为了实现研究目标,使用 MODFLOW 基于准三维瞬态地下水流模型构建了阿斯旺含水层地下水系统的模拟。该模型经过校准和验证。测试了四种管理方案。第五种情景,在这种情况下,建议以相同的条件和比例同时将四种情景组合在一起实施。将四种情景一起实施的提案结果表明,最后阶段地下水位的下降速度将为 12.44%。研究结果表明,更好地了解水平衡分量的模拟长期平均空间分布有助于管理和规划阿斯旺含水层中的可用水资源。