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The flow of the Blue Nile varies considerably over its yearly cycle and is the main contribution to the large natural variation of the Nile flow. During the dry season the natural discharge of the Blue Nile can be as low as 113 m 3 /s (4,000 cu ft/s), although upstream dams regulate the flow of the river.
The Nile is the only significant source of water in North Africa and 40% of Africa’s population lives in the Nile River Basin. [3] The Nile has two major tributaries: the White Nile and the Blue Nile. The White Nile is the longer of the two, rising in the Great Lakes Region of central Africa.
A 30 cm (12 in) rise in sea level could affect about 6.6% of the total land cover area in the Nile Delta region. At 1 m (3 ft 3 in) sea level rise, an estimated 887 thousand people could be at risk of flooding and displacement and about 100 km 2 (40 sq mi) of vegetation, 16 km 2 (10 sq mi) wetland, 402 km 2 (160 sq mi) cropland, and 47 km 2 (20 ...
The Nile valley extends approximately 800 km from Aswan to the outskirts of Cairo. The Nile Valley is known as Upper Egypt, while the Nile Delta region is known as Lower Egypt. Steep rocky cliffs rise along the banks of the Nile in some stretches, while other areas along the Nile are flat, with space for agricultural production.
A report [26] by Strategic Foresight Group, a think tank in Asia, details in the damage and destruction done to water systems and resources. The Middle East is an extremely water scarce region and any damage to this vital resource has an adverse impact on health, bio-diversity, and eco-systems in the region.
The controversy on the quantity of average annual Nile flow was settled and agreed to be about 84 billion cubic meters measured at Aswan High Dam, in Egypt. The agreement allowed the entire average annual flow of the Nile to be shared among the Sudan and Egypt at 18.5 and 55.5 billion cubic meters, respectively.
The basin rises in the highlands and flows in extremely arid regions, in particular the Sahara Desert. [3] Its main navigable course is through the Nile River, being the mouth section in the Mediterranean Sea (more precisely after the Nile Delta) until it surrounds the city of Aswan, in southern Egypt.
The Congo–Nile divide runs southeast and then south along the border between South Sudan and Uganda to the east and the Central African Republic and Democratic Republic of the Congo (DRC) to the west. The Ironstone Plateau region between South Sudan and the DRC is cut by many streams that have formed steep and narrow valleys. [1]