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Sustainability of a navigation channel in the Nile River: A case study in Egypt
River Research and Applications ( IF 2.2 ) Pub Date : 2020-09-16 , DOI: 10.1002/rra.3717
Esam Helal 1 , Hossam Elsersawy 2 , Enas Hamed 2 , Fahmy Salah Abdelhaleem 3
Affiliation  

Inland waterways are an environmentally friendly and efficient mode of transport. At locations along the Nile River, Egypt, navigation is hindered requiring expensive, resource‐intensive corrective. An increasing number of navigational bottlenecks have occurred between 1982 and 2015 because of changing river channel morphologies. This study provides a suitable method for evaluating navigation conditions within a reach of the Nile River. A 2D morphological model combined with a geographic information system application was created to assess the navigability of a reach of the Nile River, and different maintenance strategies were evaluated. Different scenarios of varying water levels, dredging operations, flow discharge fluctuations, and river channel morphological changes were considered. Results reveal that dredging operations, alone, cannot be adopted as a permanent solution for navigation bottlenecks, with the riverbed returning to its original state within 10 years. An important output of the method is the generation of reach scale hydro‐morphodynamic maps that show the main morphological features, navigation bottlenecks, and navigation conditions. These maps aid in the development of strategic navigability plans and in evaluating long‐term improvement measures. The method presented is applicability to large river systems worldwide.

中文翻译:

尼罗河航道的可持续性:以埃及为例

内陆水路是一种环境友好,高效的运输方式。在埃及尼罗河沿岸,航行受阻,需要昂贵的资源密集型纠正措施。由于河道形态的变化,1982年至2015年之间出现了越来越多的导航瓶颈。这项研究为评估尼罗河范围内的航行条件提供了一种合适的方法。建立了一个二维形态学模型并结合了地理信息系统应用程序来评估尼罗河河段的通航性,并评估了不同的维护策略。考虑了不同水位,疏operations操作,流量排放波动和河道形态变化的不同情况。结果表明,单独进行挖泥作业,河床不能在10年内恢复到原始状态,因此不能作为导航瓶颈的永久解决方案。该方法的重要输出是生成可显示主要形态特征,导航瓶颈和导航条件的到达比例水力动力学图。这些地图有助于制定战略航行计划和评估长期改进措施。提出的方法适用于全世界的大型河流系统。这些地图有助于制定战略航行计划和评估长期改进措施。提出的方法适用于全世界的大型河流系统。这些地图有助于制定战略航行计划和评估长期改进措施。提出的方法适用于全世界的大型河流系统。
更新日期:2020-11-06
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