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Nile
From Wikipedia, the free encyclopedia
For other uses, see Nile (disambiguation).
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Coordinates: 30°10′N 31°6′E
Nile
River
The Nile in Egypt
Name origin: Nile (Arabic: 'nīl) comes from the Greek word Neilos (Νεῖλος)
Countries Ethiopia, Egypt
Cities Jinja, Juba, Khartoum, Cairo
Primary source White Nile
- elevation 2,700 m (8,858 ft)
- coordinates 2°16′55.92″S 29°19′52.32″E
Secondary source Blue Nile
- location Lake Tana, Ethiopia
- coordinates 12°2′8.8″N 37°15′53.11″E
Source confluence near Khartoum
Mouth
- location Mediterranean Sea
- elevation 0 m (0 ft)
- coordinates 30°10′N 31°6′E [1]
Length 6,650 km (4,132 mi)
Width 8 km (5 mi)
Basin 3,400,000 km² (1,312,747 sq mi)
Discharge
- average 2,830 m3/s (99,941 cu ft/s)
Map showing the Nile
The Nile (Arabic: النيل, an-nīl, Ancient Egyptian iteru or Ḥ'pī, Coptic piaro or phiaro) is a major north-flowing river in North Africa, generally regarded as the longest river in the world[2]. It is 6,650 km (4,130 miles) long.
The Nile has two major tributaries, the White Nile and Blue Nile. The latter is the source of most of the water and fertile soil. The former is the longer. The White Nile rises in the Great Lakes region of central Africa, with the most distant source in southern Rwanda at 2°16′55.92″S 29°19′52.32″E. It flows north through Tanzania, Lake Victoria, Uganda and southern Sudan. The Blue Nile starts at Lake Tana in Ethiopia at 12°2′8.8″N 37°15′53.11″E and flows into Sudan from the southeast. The two rivers meet near the Sudanese capital of Khartoum.
The northern section of the river flows almost entirely through desert, from Sudan into Egypt, a country whose civilization has depended on the river since ancient times. Most of the population and cities of Egypt lie along those parts of the Nile valley north of Aswan, and nearly all the cultural and historical sites of Ancient Egypt are found along riverbanks. The Nile ends in a large delta that empties into the Mediterranean Sea.
Contents [hide]
1 Etymology of the word Nile
2 Tributaries and distributaries
2.1 White Nile
2.2 Blue Nile
2.3 Yellow Nile
2.4 Lost headwaters
3 History
3.1 The Eonile
3.2 The integrated Nile
3.3 Role in the founding of Egyptian civilization
3.4 The search for the source of the Nile
3.5 The modern era
4 Water sharing dispute
5 Modern achievements and exploration
6 Crossings
6.1 Crossings from Khartoum to the Mediterranean Sea
6.2 Crossings from Rwanda to Khartoum
7 Images of the Nile
8 Media
9 See also
10 References
11 Further reading
12 Annotated bibliography
13 External links
Etymology of the word Nile
In the ancient Egyptian language, the Nile is called Ḥ'pī or iteru, meaning "great river", represented by the hieroglyphs shown on the left (literally itrw, and 'waters' determinative).[3] In Coptic, the words piaro (Sahidic) or phiaro (Bohairic) meaning "the river" (lit. p(h).iar-o "the.canal-great") come from the same ancient name.
Tributaries and distributaries
Nile seen from Spot Satellite
Map showing the course of the White and Blue Niles
The Nile makes its way through the Sahara
Composite satellite image of the White Nile.
The drainage basin of the Nile covers 3,254,555 square kilometres (1,256,591 sq mi), about 10% of the area of Africa.[4]
The two great tributaries join at Khartoum. The White Nile starts in equatorial East Africa, and the Blue Nile begins in Ethiopia. Both branches are on the western flanks of the East African Rift, the southern part of the Great Rift Valley. Below this confluence the only major tributary is the Atbara River, roughly halfway to the sea, which originates in Ethiopia north of Lake Tana, and is around 800 kilometres (500 mi) long. The Atbara flows only while there is rain in Ethiopia and dries very rapidly. During the dry period of January to June, it typically dries up. It joins the Nile approximately 300 kilometres (200 mi) north of Khartoum.
The course of the Nile in Sudan is distinctive. It flows over six groups of cataracts, from the first at Aswan to the sixth at Sabaloka (just north of Khartoum) and then turns to flow southward before again returning to flow north. This is called the "Great Bend of the Nile".
North of Cairo, the Nile splits into two branches (or distributaries) that feed the Mediterranean: the Rosetta Branch to the west and the Damietta to the east, forming the Nile Delta.
The Nile basin is complex, and because of this, the discharge at any given point along the mainstem depends on many factors including weather, diversions, evaporation and evapotranspiration, and groundwater flow.
White Nile
Main article: White Nile
The source of the Nile is sometimes considered to be Lake Victoria, but the lake has feeder rivers of considerable size. The most distant stream—and thus the ultimate source of the Nile—emerges from Nyungwe Forest in Rwanda, via the Rukarara, Mwogo, Nyabarongo and Kagera rivers, before flowing into Lake Victoria in Tanzania near the town of Bukoba.
The Nile leaves Lake Victoria at Ripon Falls near Jinja, Uganda, as the Victoria Nile. It flows for approximately 500 kilometres (300 mi) farther, through Lake Kyoga, until it reaches Lake Albert. After leaving Lake Albert, the river is known as the Albert Nile. It then flows into Sudan, where it is known as the Bahr al Jabal ("River of the Mountain"). The Bahr al Ghazal, itself 716 kilometres (445 mi) long, joins the Bahr al Jabal at a small lagoon called Lake No, after which the Nile becomes known as the Bahr al Abyad, or the White Nile, from the whitish clay suspended in its waters. When the Nile flooded it left a rich silty deposit which fertilized the soil. The Nile no longer floods annually since the completion of the Aswan Dam in 1970. From Lake No, the river flows to Khartoum. An anabranch river, the Bahr el Zeraf, flows out of the Nile's Bahr al Jabal section and rejoins the White Nile.
The term "White Nile" is used in both a general sense, referring to the entire river above Khartoum, and in a limited sense, describing the section between Lake No and Khartoum.
The flow rate of the Bahr al Jebal at Mongalla, Sudan is almost constant throughout the year and averages 1,048 m3/s (37,000 cu ft/s). After Mongalla, the Bahr Al Jabal enters the enormous swamps of the Sudd region of Sudan. More than half of the Nile's water is lost in this swamp to evaporation and transpiration. The average flow rate of the White Nile at the tails of the swamps is about 510 m3/s (18,000 cu ft/s). From here it soon meets with the Sobat River at Malakal. On an annual basis the White Nile upstream of Malakal contributes about 15% of the total outflow of the Nile River.[5]
The Bahr al Jebal and the Sobat River are the two most important tributaries of the White Nile in terms of discharge. The Bahr al Ghazal's drainage basin is the largest of any of the Nile's sub-basins, measuring 520,000 square kilometres (200,000 sq mi) in size, but it contributes a relatively small amount of water, about 2 m3/s (71 cu ft/s) annually, due to tremendous volumes of water being lost in the Sudd wetlands. The Sobat River, which joins the Nile a short distance below Lake No, drains about half as much land, 225,000 km2 (86,900 sq mi), but contributes 412 cubic metres per second (14,500 cu ft/s) annually to the Nile.[6] When in flood the Sobat carries a large amount of sediment, adding greatly to the White Nile's color.[7]
The average flow of the White Nile at Malakal, just below the Sobat River, is 924 m3/s (32,600 cu ft/s); the peak flow is approximately 1,218 m3/s (43,000 cu ft/s) in October and minimum flow is about 609 m3/s (21,500 cu ft/s) in April. This fluctuation is due the substantial variation in the flow of the Sobat, which has a minimum flow of about 99 m3/s (3,500 cu ft/s) in March and a peak flow of over 680 m3/s (24,000 cu ft/s) in October.[8] During the dry season (January to June) the White Nile contributes between 70% and 90% of the total discharge from the Nile.
Blue Nile
Main article: Blue Nile
The Blue Nile Falls fed by Lake Tana near the city of Bahir Dar, Ethiopia.
Nile delta from space
The Blue Nile (Ge'ez ጥቁር ዓባይ Ṭiqūr ʿĀbbāy (Black Abay) to Ethiopians; Arabic: النيل الأزرق; transliterated: an-Nīl al-Azraq) springs from Lake Tana in the Ethiopian Highlands. The Blue Nile flows about 1,400 kilometers to Khartoum, where the Blue Nile and White Nile join to form the Nile. 90% of the water and 96% of the transported sediment carried by the Nile[9] originates in Ethiopia, with 59% of the water from the Blue Nile (the rest being from the Tekezé, Atbarah, Sobat, and small tributaries). The erosion and transportation of silt only occurs during the Ethiopian rainy season in the summer, however, when rainfall is especially high on the Ethiopian Plateau; the rest of the year, the great rivers draining Ethiopia into the Nile (Sobat, Blue Nile, Tekezé, and Atbarah) have a weaker flow.
The Blue Nile contributes approximately 80-90% of the Nile River discharge. 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 wet season the peak flow of the Blue Nile will often exceed 5,663 m3/s (200,000 cu ft/s) in late August (a difference of a factor of 50). During the dry season the natural discharge of the Blue Nile can be as low as 113 m3/s (4,000 cu ft/s), although upstream dams regulate the flow of the river.
Before the placement of dams on the river the yearly discharge varied by a factor of 15 at Aswan. Peak flows of over 8,212 m3/s (290,000 cu ft/s) would occur during late August and early September and minimum flows of about 552 m3/s (19,500 cu ft/s) would occur during late April and early May.
Yellow Nile
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.[10] Its remains are known as the Wadi Howar. The wadi passes through Gharb Darfur near the northern border with Chad and meets up with the Nile near the southern point of the Great Bend.
Lost headwaters
Further information: List of rivers by length
Formerly Lake Tanganyika drained northwards along the African Rift Valley into the Albert Nile, making the Nile about 900 miles (1,400 km) longer, until blocked in Miocene times by the bulk of the Virunga Volcanoes.
History
Reconstruction of the Oikoumene (inhabited world), an ancient map based on Herodotus' description of the world, circa 450 BCE.
Historic map of the River Nile by Piri Reis
Further information: Climate history of the Sahara
The Nile (iteru in Ancient Egyptian) has been the lifeline of civilization in Egypt since the Stone Age, with most of the population and all of the cities of Egypt resting along those parts of the Nile valley lying north of Aswan. Climate change at the end of the most recent ice age led to the formation of the Sahara desert, possibly as long ago as 3400 BC.
The Eonile
The present Nile is at least the fifth river that has flowed north from the Ethiopian Highlands. Satellite imagery was used to identify dry watercourses in the desert to the west of the Nile. An Eonile canyon, now filled by surface drift, represents an ancestral Nile called the Eonile that flowed during the later Miocene (23–5.3 million years before present). The Eonile transported clastic sediments to the Mediterranean; several natural gas fields have been discovered within these sediments.
During the late-Miocene Messinian salinity crisis, when the Mediterranean Sea was a closed basin and evaporated to the point of being empty or nearly so, the Nile cut its course down to the new base level until it was several hundred feet below world ocean level at Aswan and 8,000 feet (2,400 m) below Cairo. This created a very long and deep canyon which was filled with sediment when the Mediterranean was recreated. At some point the sediments raised the riverbed sufficiently for the river to overflow westward into a depression to create Lake Moeris.
Lake Tanganyika drained northwards into the Nile until the Virunga Volcanoes blocked its course in Rwanda. The Nile was much longer at that time, with its furthest headwaters in northern Zambia.
The integrated Nile
There are two theories about the age of the integrated Nile. One is that the integrated drainage of the Nile is of young age, and that the Nile basin was formerly broken into series of separate basins, only the most northerly of which fed a river following the present course of the Nile in Egypt and Sudan. Said postulated that Egypt itself supplied most of the waters of the Nile during the early part of its history.[11]
The other theory is that the drainage from Ethiopia via rivers equivalent to the Blue Nile and the Atbara and Takazze flowed to the Mediterranean via the Egyptian Nile since well back into Tertiary times.[12]
Salama suggested that during the Tertiary (65 million to 2.588 million years ago) a series of separate closed continental basins each occupied one of the major parts of the Sudanese Rift System: Mellut Rift, White Nile Rift, Blue Nile Rift, Atbara Rift and Sag El Naam Rift.[13] The Mellut Rift Basin is nearly 12 kilometers (7 mi) deep at its central part. This rift is possibly still active, with reported tectonic activity in its northern and southern boundaries. The Sudd swamps which form the central part of the basin may still be subsiding. The White Nile Rift System, although shallower than Bahr al-Arab, is about 9 kilometers (6 mi) deep. Geophysical exploration of the Blue Nile Rift System estimated the depth of the sediments to be 5–9 kilometres (3.1–5.6 mi). These basins were not interconnected until their subsidence ceased, and the rate of sediment deposition was enough to fill and connect them. The Egyptian Nile connected to the Sudanese Nile, which captures the Ethiopian and Equatorial headwaters during the current stages of tectonic activity in the Eastern, Central and Sudanese Rift Systems.[14] The connection of the different Niles occurred during cyclic wet periods. The River Atbara overflowed its closed basin during the wet periods that occurred about 100,000 to 120,000 years ago. The Blue Nile connected to the main Nile during the 70,000–80,000 years B.P. wet period. The White Nile system in Bahr El Arab and White Nile Rifts remained a closed lake until the connection of the Victoria Nile to the main system some 12,500 years ago.
Role in the founding of Egyptian civilization
The Greek historian Herodotus wrote that "Egypt was the gift of the Nile". An unending source of sustenance, it provided a crucial role in the development of Egyptian civilization. Silt deposits from the Nile made the surrounding land fertile because the river overflowed its banks annually. The Ancient Egyptians cultivated and traded wheat, flax and other crops around the Nile. Wheat was a crucial crop in the famine-plagued Middle East. This trading system secured Egypt's diplomatic relationships with other countries, and contributed to economic stability. Far-reaching trade has been carried on along the Nile since ancient times. The Ishango bone is probably an early tally stick. It has been suggested that this shows prime numbers and multiplication, but this is disputed. In the book How Mathematics Happened: The First 50,000 Years, Peter Rudman argues that the development of the concept of prime numbers could only have come about after the concept of division, which he dates to after 10,000 BC, with prime numbers probably not being understood until about 500 BC. He also writes that "no attempt has been made to explain why a tally of something should exhibit multiples of two, prime numbers between 10 and 20, and some numbers that are almost multiples of 10."[15] It was discovered along the headwaters of the Nile (near Lake Edward, in northeastern Congo) and was carbon-dated to 20,000 BC.
Water buffalo were introduced from Asia, and Persians introduced camels in the 7th century BC. These animals were killed for meat, and were domesticated and used for ploughing—or in the camels' case, carriage. Water was vital to both people and livestock. The Nile was also a convenient and efficient means of transportation for people and goods.
The Nile was an important part of ancient Egyptian spiritual life. Hapy was the god of the annual floods, and both he and the pharaoh were thought to control the flooding. The Nile was considered to be a causeway from life to death and the afterlife. The east was thought of as a place of birth and growth, and the west was considered the place of death, as the god Ra, the Sun, underwent birth, death, and resurrection each day as he crossed the sky. Thus, all tombs were west of the Nile, because the Egyptians believed that in order to enter the afterlife, they had to be buried on the side that symbolized death.
The search for the source of the Nile
Pliny the Elder speculated on the source of the Nile
Richard Francis Burton, Victorian explorer
Henry Morton Stanley confirmed the source of the Nile in 1872
Despite the failed attempts of the Greeks and Romans to penetrate the Sudd wetlands in southern Sudan, the upper reaches of the Nile remained largely unknown. Various expeditions failed to determine the river's source, thus yielding classical enistic and Roman representations of the river as a male god with his face and head obscured in drapery. Agatharcides records that in the time of Ptolemy II Philadelphus, a military expedition had penetrated far enough along the course of the Blue Nile to determine that the summer floods were caused by heavy seasonal rainstorms in the Ethiopian Highlands, but no European of antiquity is known to have reached Lake Tana.
Europeans began to learn about the origins of the Nile in the 15th and 16th centuries, when travelers to Ethiopia visited Lake Tana and the source of the Blue Nile in the mountains south of the lake. Although James Bruce claimed to be the first European to have visited the headwaters,[16] modern writers give the credit to the Jesuit Pedro Páez. Páez’ account of the source of the Nile[17] is a long and vivid account of Ethiopia. It was published in full only in the early 20th century, although it was featured in works of Páez’ contemporaries, including Baltazar Téllez,[18] Athanasius Kircher[19] and by Johann Michael Vansleb.[20]
Europeans had been resident in Ethiopia since the late 15th century, and one of them may have visited the headwaters even earlier without leaving a written trace. John Bermudez published the first description of the Tis Issat Falls in his 1565 memoirs, compared them to the Nile Falls alluded to in Cicero's De Republica.[21] Jerónimo Lobo describes the source of the Blue Nile, visiting shortly after Pedro Páez. Telles also used his account.
The White Nile was even less understood. The ancients mistakenly believed that the Niger River represented the upper reaches of the White Nile. For example, Pliny the Elder wrote that the Nile had its origins "in a mountain of lower Mauretania", flowed above ground for "many days" distance, then went underground, reappeared as a large lake in the territories of the Masaesyli, then sank again below the desert to flow underground "for a distance of 20 days' journey till it reaches the nearest Ethiopians." [22] A merchant named Diogenes reported that the Nile's water attracted game such as water buffalo.
Lake Victoria was first sighted by Europeans in 1858 when the British explorer John Hanning Speke reached its southern shore while traveling with Richard Francis Burton to explore central Africa and locate the great lakes. Believing he had found the source of the Nile on seeing this "vast expanse of open water" for the first time, Speke named the lake after the then Queen of the United Kingdom. Burton, recovering from illness and resting further south on the shores of Lake Tanganyika, was outraged that Speke claimed to have proved his discovery to be the true source of the Nile when Burton regarded this as still unsettled. A very public quarrel ensued, which sparked a great deal of intense debate within the scientific community and interest by other explorers keen to either confirm or refute Speke's discovery. British explorer and missionary David Livingstone pushed too far west and entered the Congo River system instead. It was ultimately Welsh-American explorer Henry Morton Stanley who confirmed Speke's discovery, cir navigating Lake Victoria and reporting the great outflow at Ripon Falls on the Lake's northern shore.
European involvement in Egypt goes back to the time of Napoleon. Laird Shipyard of Liverpool sent an iron steamer to the Nile in the 1830s. With the completion of the Suez Canal and the British takeover of Egypt in the 1870s, more British river steamers followed.
The Nile is the area's natural navigation channel, giving access to Khartoum and Sudan by steamer. The Siege of Khartoum was broken with purpose-built sternwheelers shipped from England and steamed up the river to retake the city. After this came regular steam navigation of the river. With British Forces in Egypt in the First World War and the inter-war years, river steamers provided both security and sightseeing to the Pyramids and Thebes. Steam navigation remained integral to the two countries as late as 1962. Sudan steamer traffic was a lifeline as few railways or roads were built in that country. Most paddle steamers have been retired to shorefront service, but modern diesel tourist boats remain on the river.
The modern era
The confluence of the Kagera and Ruvubu rivers near Rusumo Falls, part of the Nile's upper reaches.
Dhows on the Nile
The Nile passes through Cairo, Egypt's capital city
The Nile has long been used to transport goods along its length. Winter winds blow south, up river, so ships could sail up river, and down river using the flow of the river. While most Egyptians still live in the Nile valley, the 1970 completion of the Aswan High Dam ended the summer floods and their renewal of the fertile soil, fundamentally changing farming practices. The Nile supports much of the population living along its banks, enabling Egyptians to live in otherwise inhospitable regions of the Sahara. The rivers's flow is disturbed at several points by the Cataracts of the Nile, which are sections of faster-flowing water with many small islands, shallow water, and rocks, which form an obstacle to navigation by boats. The Sudd wetlands in Sudan also forms a formidable navigation obstacle and impede water flow, to the extent that Sudan had once attempted to canalize (the Jonglei Canal) to bypass the swamps.[23][24]
Nile cities include Khartoum, Aswan, Luxor (Thebes), and the Giza – Cairo conurbation. The first cataract, the closest to the mouth of the river, is at Aswan, north of the Aswan Dams. This part of the river is a regular tourist route, with cruise ships and traditional wooden sailing boats known as feluccas. Many cruise ships ply the route between Luxor and Aswan, stopping at Edfu and Kom Ombo along the way. Security concerns have limited cruising on the northernmost portion for many years.
A computer simulation study to plan the economic development of the Nile was directed by H.A.W. Morrice and W.N. Allan, for the Ministry of Hydro-power of the Republic of the Sudan, during 1955—1957[25][26][27] Morrice was their Hydrological Adviser, and Allan his predecessor. M.P. Barnett directed the software development and computer operations. The calculations were enabled by accurate monthly inflow data collected for 50 years. The underlying principle was the use of over-year storage, to conserve water from rainy years for use in dry years. Irrigation, navigation and other needs were considered. Each computer run postulated a set of reservoirs and operating equations for the release of water as a function of the month and the levels upstream. The behaviour that would have resulted given the inflow data was modeled. Over 600 models were run. Recommendations were made to the Sudanese authorities. The calculations were run on an IBM 650 computer. Simulation studies to design water resource systems are discussed further in the article on Hydrology transport models, that have been used since the 1980s to analyze water quality.
Despite the development of many reservoirs, drought during the 1980s led to widespread starvation in Ethiopia and Sudan, but Egypt was nourished by water impounded in Lake Nasser.
Water sharing dispute
The Nile's water has affected the politics of East Africa and the Horn of Africa for many decades. Countries including Uganda, Sudan, Ethiopia and Kenya have complained about Egyptian domination of its water resources. The Nile Basin Initiative promotes peaceful cooperation among these states.[28][29]
Modern achievements and exploration
The White Nile Expedition, led by South African national Hendrik Coetzee, became the first to navigate the Nile's entire length. The expedition began at the source of the Nile in Uganda on January 17, 2004 and arrived safely at the Mediterranean in Rosetta, four and a half months later.[30]
On April 28, 2004, geologist Pasquale Scaturro and his partner, kayaker and do entary filmmaker Gordon Brown became the first people to navigate the Blue Nile, from Lake Tana in Ethiopia to the beaches of Alexandria on the Mediterranean. Though their expedition included others, Brown and Scaturro were the only ones to complete the entire journey.[31] The team used outboard motors for most of their journey. On January 29, 2005 Canadian Les Jickling and New Zealander Mark Tanner completed the first human powered transit.
A team led by South Africans Peter Meredith and Hendrik Coetzee on April 30, 2005, became the first to navigate the remote source of the Nile, the Akagera river, which starts as the Rukarara in Nyungwe forest in Rwanda.
Crossings
Crossings from Khartoum to the Mediterranean Sea
Aswan Bridge, Aswan
Luxor Bridge, Luxor
Suhag Bridge, Suhag
Assiut Bridge, Assiut
Al Minya Bridge, Minya
Al Marazeek Bridge, Helwan
First Ring Road Bridge (Moneeb Crossing), Cairo
Abbas Bridge, Cairo
University Bridge, Cairo
Qasr El Nile Bridge, Cairo
6 October Bridge, Cairo
Abu El Ela Bridge, Cairo (removed)
New Abu El Ela Bridge, Cairo
Imbaba Bridge, Cairo
Rod Elfarag Bridge, Cairo
Second Ring Road Bridge, Cairo
Banha Bridge, Banha
Samanoud Bridge, Samanoud
Mansoura 2 Bridges, Mansoura
Talkha Bridge, Talkha
Kafr El Zayat Bridges, Kafr El Zayat
Zefta Bridge, Zefta
This list is incomplete; you can help by expanding it.
Crossings from Rwanda to Khartoum
Nalubaale Bridge, Jinja, Uganda (Formerly Owen Falls Bridge)
Karuma Bridge, Karuma, Uganda
Pakwach Bridge, Uganda
This list is incomplete; you can help by expanding it.
Images of the Nile
Riverboat on the Nile, Egypt 1900
View of the Nile from a cruiseboat, between Luxor and Aswan in Egypt
A felucca traversing the Nile near Aswan
A boat in the Nile zamalek area, Cairo.
Marsh along the Nile
The Nile in Uganda
A river boat crossing the Nile in Uganda
The Great Bend of the Nile in Sudan, looking north across the Sahara Desert
City lights define the river valley as it snakes across the desert.
Media
River and mountain scenery on the Nile
People living on the banks of the Nile
See also
Aswan Dam
Bujagali Power Station
Egyptian Public Works
Hydropolitics in the Nile Basin
Kiira Power Station
Lake Moeris
Merowe Dam
Nalubaale Power Station
Nile Basin Initiative
Nile Delta
Orders of magnitude (length)
References
^ Nile River at GEOnet Names Server
^ Template:Cite enyclopedia
^ What did the ancient Egyptians call the Nile river? Open Egyptology. (Accessed 17 October 2006)
^ EarthTrends: The Environmental Information Portal
^ Hurst H.E. et al (1959). "The Nile Basins". Cairo: Government Printing office.
^ Shahin, Mamdouh (2002). Hydrology and Water Resources of Africa. Springer. pp. 276, 287–288. ISBN 140200866X.; online at Google Books
^ "Sobat River". Encyclopædia Britannica Online Library Edition. Encyclopædia Britannica. Retrieved 2008-01-21.
^ by J. V. Sutcliffe & Y. P. Parks (1999). The Hydrology of the Nile. IAHS Special Publication no. 5. p. 161.
^ Marshall et al., Late Pleistocene and Holocene environmental and climatic change from Lake Tana, source of the Blue NilePDF (247 KiB), 2006
^ Keding, B (2000). "New data on the Holocene occupation of the Wadi Howar region (Eastern Sahara/Sudan)". Studies in African Archaeology 7: 89–104.
^ Said, R. (1981). The geological evolution of the River Nile. Springer Verlag.
^ Williams, M.A.J. and Williams, F. (1980). Evolution of Nile Basin. In M.A.J. Williams and H. Faure (eds), The Sahara and the Nile. Balkema, Rotterdam, pp 207–224.
^ Salama, R.B. (1987). "The evolution of the River Nile, The buried saline rift lakes in Sudan". J. African Earth Sciences 6 (6): 899–913. doi:10.1016/0899-5362(87)90049-2.
^ Salama, R.B. (1997). Rift Basins of Sudan. African Basins, Sedimentary Basins of the World. 3. Edited by R.C. Selley (Series Editor K.J. Hsu) p. 105–149. ElSevier, Amsterdam.
^ {{cite book|last=Rudman|first=Peter Strom| le=How Mathematics Happened: The First 50,000 Years|year=20007|publisher=Prometheus Books|isbn=978-1591024774|page=64}
^ Travels to Discover the Source of the Nile
^ History of Ethiopia, circa 1622
^ Historia geral da Ethiopia a Alta, 1660
^ Mundus Subterraneus, 1664
^ The Present State of Egypt, 1678
^ S. Whiteway, editor and translator, The Portuguese Expedition to Abyssinia in 1441-1543, 1902. (Nendeln, Liechtenstein: Kraus Reprint, 1967), p. 241
^ Natural History, 5.10
^ Shahin, Mamdouh (2002). Hydrology and Water Resources of Africa. Springer. pp. 286–287. ISBN 140200866X.; online at Google Books
^ "Big Canal To Change Course of Nile River", October 1933, Popular Science short article on top-right of page with map
^ H.A.W. Morrice and W.N. Allan, Planning for the ultimate hydraulic development of the Nile Valley, Proceedings of the Ins ute of Civil Engineers, 14, 101, 1959.
^ M.P.Barnett, Comment on the Nile Valley Calculations, Journal of the Royal Statistical Society, Series B, vol. 19, 223, 1957.
^ D.F. Manzer and M.P. Barnett, Analysis by Simulation: Programming techniques for a High-Speed Digital Computer, in Arthur Maas et al, Design of Water Resource Systems, pp. 324--390, Harvard University Press, Cambridge, MA, 1962.
^ The Nile Basin Initiative
^ "Egypt and Thirsty Neighbors Are at Odds Over Nile". New York Times. 25 September 2010. Retrieved 25 September 2010.
^ National Geographic released a feature film about the expedition in late 2005 en led The Longest River.
^ Scaturro and Brown chronicled their adventure with an IMAX camera and two handheld video cams, sharing their story in the IMAX film Mystery of the Nile and in a book of the same le.
Further reading
Tvedt, Terje, ed. The River Nile in the Post-Colonial Age: Conflict and Cooperation Among the Nile Basin Countries (I.B. Tauris, 2010) 293 pages; studies of the river's finite resources as shared by multiple nations in the post-colonial era; includes research by scholars from Burundi, Congo, Egypt, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, and Uganda.
Annotated bibliography
The following is an annotated bibliography of key written do ents for the Western exploration of the Nile.
17th century
Historia da Ethiopia, Pedro Páez (aka Pero Pais), Portugal, 1620
A Jesuit missionary who was sent from Goa to Ethiopia in 1589 and remained in the area until his death in 1622. Credited with being the first European to view the source of the Blue Nile which he describes in this volume.
Voyage historique d'Abissinie, Jerónimo Lobo (aka Girolamo Lobo), Piero Matini, Firenze; 1693
One of the most important and earliest sources on Ethiopia and the Nile. Jerónimo Lobo (1595-1687), a Jesuit priest, stayed in Ethiopia, mostly in Tigre, for 9 years and travelled to Lake Tana and the Blue Nile, reaching the province of Damot. When the Jesuits were expelled from the country, he too had to leave and did so via Massaua and Suakin. "He was the best expert on Ethiopian matters. After Pais, Lobo is the second European to describe the sources of the Blue Nile and he did so more exactly than Bruce" (transl. from Henze).
18th century
Travels to Discover the Source of the Nile in the Years – 1768, 1770, 1771, 1772, and 1773, James Bruce of Kinnaird. J. Ruthven for G. GJ. and J. Robinson et al., Edinburgh, 1790 (5 Volumes)
With time on his hands and at the urging of a friend, Bruce composed this account of his travels on the African continent, including comments on the history and religion of Egypt, an account of Indian trade, a history of Abyssinia, and other material. Although Bruce would not be confused with "a great scholar or a judicious critic, few books of equal compass are equally entertaining; and few such monuments exist of the energy and enterprise of a single traveller" (DNB). "The result of his travels was a very great enrichment of the knowledge of geography and ethnography" (Cox II, p. 389.) Bruce was one of the earliest westerners to search for the source of the Nile. In November of 1770 he reached the source of the Blue Nile, and though he acknowledged that the White Nile was the larger stream, he claimed that the Blue Nile was the Nile of the ancients and that he was thus the discoverer of its source. The account of his travels was written twelve years after his journey and without reference to his journals, which gave critics grounds for disbelief, but the substantial accuracy of the book has since been amply demonstrated.
1800-1850
Egypt And Mohammed Ali, Or Travels In The Valley of The Nile, James Augustus St. John, Longman, London, 1834
St. John traveled extensively in Egypt and Nubia in 1832-33, mainly on foot. He gives a very interesting picture of Egyptian life and politics under Mohammed Ali, a large part of volume II deals with the Egyptian campaign in Syria.
Travels in Ethiopia Above the Second Cateract of the Nile; Exhibiting the State of That Country and Its Various Inhabitants Under the Dominion of Mohammed Ali; and Illustrating the Antiquities, Arts, and History of the Ancient Kingdom of Meroe, G. A.Hoskins. Longman, Rees, Orme, Brown, Green, & Longman, London; 1835.
Modern Egypt and Thebes: Being a Description of Egypt; Including Information Required for Travellers in That Country, Sir Gardner Wilkinson, John Murray, London, 1843
The first known English travelers guide to the Lower Nile Basin.
1850-1900
Lake Regions of Central Equatorial Africa, with Notices of The Lunar Mountains and the Sources of the White Nile; being The Results of an Expedition Undertaken under the Patronage of Her Majesty's Government and the Royal Geographical Society of London, In the Years 1857-1859, Sir Richard Burton. W. Clowes , London; 1860
Sir Richard Burton's presentation of his expedition with John Speke. Ultimately, Burton's view of the sources of the Nile failed and Speke's prevailed.
Travels, researches, and missionary labours, during eighteen years' residence in eastern Africa. Together with journeys to Jagga, Usambara, Ukambani, Shoa, Abessinia, and Khartum; and a coasting voyage from Mombaz to Cape Delgado. With an appendix respecting the snow-capped mountains of eastern Africa; the sources of the Nile; the languages and literature of Abessinia And eastern Africa, etc. etc., Rev Dr. J. Krapf, Trubner and Co, London; 1860; Tickner & Fields, Boston; 1860
Krapf went to East Africa in the service of the English Church Missionary Society, arriving at Mombasa, Kenya in 1844 and staying in East Africa until 1853. While stationed there he was the first to report the existence of Lake Baringo and a sighting of the snow-clad Kilimanjaro. Krapf, during his travels, collected information from the Arab traders operating inland from the coast. From the traders Krapf and his companions learned of great lakes and snow-capped mountains, which Krapf claimed to have seen for himself, much to the ridicule of English explorers who could not believe the idea of snow on the equator. However, Krapf was correct and had seen Mounts Kilimanjaro and Kenya, the first European to do so.
Egypt, Soudan and Central Africa: With Explorations From Khartoum on the White Nile to the Regions of the Equator, Being Sketches from Sixteen Years' Travel, John Petherick. William Blackwood, Edinburgh; 1861
Petherick was a well known Welsh traveler in East Central Africa where he had adopted the profession of mining engineer. This work describes sixteen years of his travel throughout Africa. In 1845 he entered the service of Mehemet Ali, and was employed in examining Upper Egypt, Nubia, the Red Sea coast and Kordofan in an unsuccessful search for coal. In 1848 he left the Egyptian service and established himself at El Obeid as a trader and was, at the same time made British Consul for the Sudan. In 1853 he removed to Khartoum and became an ivory trader. He traveled extensively in the Bahr-el-Ghazal region, then almost unknown, exploring the Jur, Yalo and other affluents of the Ghazal and in 1858 he penetrated the Niam-Niam country. Petherick's additions to the knowledge of natural history were considerable, being responsible for the discovery of a number of new species. In 1859 he returned to England where he became acquainted with John Speke, then arranging for an expedition to discover the source of the Nile. While in England, Petherick married and published this account of his travels. He got the idea to join Speke in his travels, and in this volume is an actual subscription and list of subscribers to raise money to send Petherick to join Speke. His subsequent adventures as a consul in Africa were published in a later work.
Journal of the Discovery of the Source of the Nile, John Hanning Speke. Blackwood, Edinburgh, 1863; Harper & Brothers, New York; 1864
Speke had previously made an expedition with Sir Richard Burton under the au es of the Indian government, during which Speke was convinced that he had discovered the source of the Nile. Burton, however, disagreed and ridiculed Speke's account. Speke set off on another expedition, recounted here, in the company of Captain Grant. During the course of this expedition he not only produced further evidence for his discoveries but also met up with Sir Samuel Baker and provided him with essential information which helped Baker in his discovery of the Albert Nyanza. The importance of Speke's discoveries can hardly be overestimated. In discovering the source reservoir of the Nile he succeeded in solving the problem of all ages; he and Grant were the first Europeans to cross Equatorial Eastern Africa and gained for the world a knowledge of about 500 miles (800 km) of a portion of Eastern Africa previously totally unknown.
External links
Wikimedia Commons has media related to: Nile
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[show]v · d · eAncient Egypt topics
[show]v · d · eRivers of Uganda
Categories: Rivers of Uganda | Nile | Nile basin | Rivers of Egypt | Rivers of Sudan | International rivers of Africa | Hebrew Bible rivers | Water transport in Egypt
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