Bøger af Mustafa El-Rawy

This book presents the managed aquifer recharge, also called MAR, as state of the art in the Middle East and North Africa. Renewable groundwater resources are scarce in the majority of the MENA countries. The Middle East and North Africa (MENA) area is often regarded as the world's most water-scarce region. The MENA region consists of eighteen countries covering an area of approximately 12 million km2. The population of MENA countries is around 6% of the world's population, but its water resources are four times lower. Aquifer recharge plays an essential role in adequately allocating recovered water into the groundwater storage capacity, recovering overexploited groundwater, and improving groundwater quality. MAR may help minimize flood mitigation and flood hazard by harvesting floodwater using storage dams, which allows it to replenish the underlying groundwater aquifer while simultaneously lowering flood risks to downstream areas. MAR has the potential to be a crucial water management strategy to promote groundwater storage in arid and semiarid regions as MENA region. This book explores several themes, including the status of the applications of the MAR in MENA countries, strategies for the MAR in MENA countries, MAR methods and assessments, the economics of using MAR in the MENA region, sustainability of the MAR in MENA countries, environmental risk management, and relevant applications of remote sensing and GIS techniques for the managed aquifer recharge. This book presents various strategies for the managed aquifer recharge in the MENA countries to help them achieve their sustainability agenda 2030.

Groundwater is the world's largest source of fresh water, but its safe and sustainable exploitation remains a challenge. Egypt's Nile Valley aquifer is the most important renewable aquifer, accounting for approximately 85% of total groundwater use in Egypt. Egypt's long-term development and socioeconomic growth in the Nile Valley depends on this groundwater. Concerns about groundwater assessment, quality, management, and sustainability frame the current status of Nile Valley groundwater supplies. Proper knowledge of the current state of the groundwater quantity and quality in the Nile Valley is vital for the development and management of groundwater resources in Egypt. Due to Egypt's water scarcity, the projected decline in Nile River flow due to climate change, and the development of numerous Nile River basin projects, the situation is critical, and the consequences might be severe. Furthermore, Egypt's growing population puts significant strain on groundwater, which is the second most significant freshwater supply next to the surface water supply coming from the Nile River as Egypt's share. Several books on the various aspects of Egypt's water resources have been published, but there is insufficient recent information on groundwater in the Nile Valley aquifer, which is essential for Egyptian populations for domestic and irrigation purposes. As a result, this book on the groundwater in the Nile Valley aquifer emerges to complete the picture of Egypt's water resources as a good example of arid country located in MENA regions with many arid countries. Consequently, the lessons learned from this book could be beneficial to other countries in MENA regions, particularly those in North Africa.

This book describes a novel physics-based approach to inverse modeling that makes use of the properties of the equations governing the physics of the processes under consideration.