Abstract Delineation and modeling of seawater intrusion into the Nile Delta Aquifer: A new perspective
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Science >Delineation and modeling of seawater intrusion into the Nile Delta Aquifer: A new perspective
【24h】

Delineation and modeling of seawater intrusion into the Nile Delta Aquifer: A new perspective

机译：海水划入尼罗河三角洲含水层的描述和建模：一个新的视角

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstract A comprehensive conceptual regional model for the Nile Delta aquifer has been composed in terms of the actual perspective of aquifer heterogeneity using all the new field data of drilled quality monitoring points in the Nile Delta aquifer. The study used the recently acquired configuration of the aquifer system which shows that the northern part the quaternary aquifer is devolved into multi-layered aquifer system while in the southern part; the aquifer consist of sand and gravel facies. The numerical modeling uses the finite difference SEAWAT program. The model is calibrated, both in terms of hydraulic heads and salt concentration, for the 2013 field data. The calibrated model is validated for the period 2013?2015. The model water balance reveals that seawater intrusion into the aquifer takes place at shallow to medium depths (up to 400m), whereas groundwater fluxes in the deeper layers are moving toward the sea. The majority of the fluxes toward the sea help retaining old brine water in the deep zones and thus preventing seawater intrusion in these deep layers of the aquifer. This emphasizes the conclusion that the Nile Delta aquifer is not losing fresh groundwater flux to the sea. The study has achieved reliable necessary baseline simulation modeling and delineation of fresh/saline water interfaces as basis for decision-making and future management scenarios for controlled development of groundwater in the Nile Delta coastal aquifer.
机译： 摘要 已根据钻探质量监测点的所有新现场数据，根据含水层非均质性的实际观点，为尼罗河三角洲含水层建立了一个全面的概念性区域模型在尼罗河三角洲含水层中。这项研究使用了最近获得的含水层系统的构造，该结构表明，北部的第四纪含水层被分解为多层含水层系统，而南部则被分解为多层含水层系统。含水层由砂砾相组成。数值建模使用有限差分SEAWAT程序。针对2013年的现场数据，对模型进行了液压头和盐浓度的校准。校准后的模型在2013年至2015年期间经过验证。模型中的水平衡表明，海水进入含水层的深度是从浅到中（最高为400 m），而较深层的地下水通量则向海洋移动。大部分通向海洋的通量有助于将较旧的盐水保留在较深的区域中，从而防止海水侵入含水层的这些较深层。这强调了这样的结论，即尼罗河三角洲含水层没有向海洋损失新鲜的地下水通量。该研究已经获得了可靠的必要基线模拟模型，以及淡水/咸水界面的轮廓，为尼罗河三角洲沿岸含水层地下水的受控开发提供了决策和未来管理方案的基础。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号