Groundwater Management in the Esna City, Upper Egypt: An Application of Remote Sensing and Numerical Modeling
Groundwater Management in the Esna City, Upper Egypt: An Application of Remote Sensing and Numerical Modeling
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上埃及伊斯纳市地下水管理：遥感和数值模拟的应用
DOI：
10.4236/nr.2014.512063
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Schöniger
中科院分区：
文献类型：
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作者：
M. A. Monem;A. Faid;E. Ismail;M. Schöniger
有关水资源开发和管理的主要问题包括节约用水和用水效率、成本回收、社会和环境因素。因此，连续监测是必不可少的，以评估复垦对地下水潜力的影响，如埃斯纳地区。这项工作的主要目标是利用遥感技术确定1984年至2011年期间埃斯纳的新开发区。利用二维地下水流数值模拟软件包（visualmodflow4.2）对目前和未来开发的影响进行了评价。该软件包是用来构建和校准一个数值模型，可用于模拟在实施不同的管理方案，在测压水平和盐度的变化的形式下，在研究区的含水层的响应。从2011年研究区的土地利用图来看，开发区发生了很多变化，特别是在旧土地的边界之外。1984年至2011年期间，土地复垦面积的变化估计为44%。在这段时间内，这种发展伴随着大约2.5米的下降。作者建议在研究区应用多种变化检测技术。结果比较，强烈建议对开发区进行连续监测。
The major issues concerning water development and management include water conservation and the efficiency of water use, cost recovery, social and environmental factors. So continuous monitoring is essential to evaluate the reclamation impacts on the groundwater potentiality such as Esna Area. The main objective of this work is to determine the new development areas in Esna during the period from 1984 to 2011 using remote sensing technique. The impacts of the present and future development have been evaluated by using the two-dimensional numerical groundwater flow Simulation Package (visual modflow 4.2). The package is used to construct and calibrate a numerical model that can be used to simulate the response of the aquifer in the study area under implementing different management alternatives in the form of changes in piezometric levels and salinity. From land use maps of the study area in the year 2011, a lot of changes in development areas especially out the border of the old land were observed. The change in land reclaimed area was estimated with 44% in the period from year 1984 to 2011. This development accompanied with draw down about 2.5 meters through this period of time. The authors recommend applying different kinds of change detection technique on the study area. Comparing between results, continuous monitoring of the development area is highly recommended.