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Map of Nile tributaries in modern Sudan, showing the Yellow Nile The Nile represented in an ancient Roman mosaic found from the ruins of Pompeii. The Yellow Nile is a former tributary that connected the Ouaddaï highlands of eastern Chad to the Nile River Valley c. 8000 to c. 1000 BCE . [ 49 ]
A nilometer is a structure for measuring the Nile River's clarity and water level during the annual flood season in Egypt. [1] There were three main types of nilometers, calibrated in Egyptian cubits: (1) a vertical column, (2) a corridor stairway of steps leading down to the Nile, and (3) a deep well with a culvert. [1]
The main water supplier for the basin is Lake Victoria, located in the Great Rift Valley. [4] About 238 million people live within the Nile basin, 172 million of those inhabit rural localities. [5] In the southwestern part of the basin in South Sudan near the watershed with Congo Basin relief is made up a single large pediplain. [6]
No Continent River Average discharge (m 3 /s) Length Drainage area (km 2) Outflow Type (km) (miles) 1 South America: Amazon: 224,000 6,992 4,345 6,915,000 Atlantic Ocean
High water levels also occurred approximately 9000, 6000 and 5000 years ago, each of which were followed by drops in lake level of more than 40m in less than 200 years. [23] It is thought that changes in the position of the Congo Air Boundary affected the ability of moisture from the Atlantic Ocean to reach eastern Africa, [ 24 ] [ 25 ] which ...
The Nile was also an important part of ancient Egyptian spiritual life. In the Ancient Egyptian religion, Hapi was the god of the Nile and the annual flooding of it. Both he and the pharaoh were thought to control the flooding. The annual flooding of the Nile occasionally was said to be the Arrival of Hapi. [3]
The White Nile (Arabic: النيل الأبيض an-nīl al-'abyaḍ) is a river in Africa, the minor of the two main tributaries of the Nile, the larger being the Blue Nile. [4] The name "White" comes from the clay sediment carried in the water that changes the water to a pale color.
Treaties have resulted in inequitable rights to the use of Nile water between the countries of the Nile Basin. April 15, 1891 – Article III of the Anglo-Italian Protocol. Article III states that "the Italian government engages not to construct on the Atbara River, in view of irrigation, any work which might sensibly modify its flow into the ...