Research in Channel Bed Degradation of the River Nile as a Consequence of the High Aswan Dam

阿斯旺高坝导致尼罗河河床退化的研究

• 批准号: 8706731
• 负责人: Khalid Mahmood
• 金额: $ 1.92万
• 依托单位: George Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706731&HistoricalAwards=false
• 关键词: Research; Channel; Bed; Degradation; River

Abstract Narrative Project Description: The objective of this Science in Developing Countries cooperative research proposal between Dr. Khalid Mahmood of The George Washington University and Dr. Ibrahim M. Elassiouti of Cairo University is to implement an exchange of scientific knowledge in the mechanics of alluvial channels between the U.S. and Egypt. Dr. Elassiouti has developed a mathematical model to predict the channel bed degradation occuring in the River Nile as a consequence of the High Aswan Dam. This proposed research will cover the testing and improvement of hydralic, sedimentation and morphologic relations developed by George Washington University research in the alluvial channel research accomplished in Pakistan and their incorporation in the Egyptian model. This improved and advanced model will be applied to the historic data for the River Nile for both the pre- and post-dam periods. Project Significance: This research will provide the opportunity to further the development of international expertise relevant to the alluvial channel problems in Egypt. Those channels are undergoing changes due to the curtailment of sediment load by the High Aswan Dam. Changes in the Nile River channel and the Egyptian canal system in the degradation of the river bed and the instability of the canal banks are already occurring. Similar problems are being experienced in Pakistan with the building of storage dams on the rivers of that country. As other countries in the world build storage dams to firm up base flows of their rivers, these problems will undoubtedly occur again and again. This research on the Nile, when interrelated with the alluvial channel research accomplished in Pakistan, will provide both U.S. and Egypt scientists enhanced scientific results to address the problems of water resources and waterway systems in their countries and as needed in other countries of the world.

项目描述：乔治华盛顿大学的Khalid Mahmood博士和开罗大学的Ibrahim M. Elassiouti博士共同提出的发展中国家科学合作研究计划的目标是实现美国和埃及之间在冲积河道力学方面的科学知识交流。Elassiouti博士开发了一个数学模型来预测阿斯旺大坝导致尼罗河河床退化的情况。这项拟议的研究将包括测试和改进乔治华盛顿大学在巴基斯坦完成的冲积河道研究中开发的水力、沉积和形态关系，并将其纳入埃及模型。这种改进的和先进的模型将被应用于尼罗河大坝前后时期的历史数据。项目意义：本研究将为进一步发展与埃及冲积河道问题相关的国际专业知识提供机会。由于阿斯旺大坝减少了泥沙负荷，这些河道正在发生变化。尼罗河河道和埃及运河系统的变化，河床的退化和运河两岸的不稳定已经在发生。巴基斯坦在该国的河流上修建蓄水大坝，也遇到了类似的问题。随着世界上其他国家建造蓄水大坝来加固河流的基流，这些问题无疑会一次又一次地发生。这项关于尼罗河的研究，如果与在巴基斯坦完成的冲积水道研究相结合，将为美国和埃及科学家提供更好的科学成果，以解决各自国家的水资源和水道系统问题，并满足世界其他国家的需要。