1.
Nile
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The Nile is a major north-flowing river in northeastern Africa. It is generally regarded as the longest river in the world, in particular, the Nile is the primary water source of Egypt and Sudan. The Nile has two tributaries, the White Nile and Blue Nile. The White Nile is considered to be the headwaters and primary stream of the Nile itself, the Blue Nile, however, is the source of most of the water and silt. The White Nile is longer and rises in the Great Lakes region of central Africa and it flows north through Tanzania, Lake Victoria, Uganda and South Sudan. The Blue Nile begins at Lake Tana in Ethiopia and flows into Sudan from the southeast, the two rivers meet just north of the Sudanese capital of Khartoum. The northern section of the river flows north almost entirely through the Sudanese desert to Egypt, then ends in a large delta, Egyptian civilization and Sudanese kingdoms have 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, in the ancient Egyptian language, the Nile is called Ḥpī or Iteru, meaning river. In Coptic, the words piaro or phiaro meaning the river come from the ancient name. The English name Nile and the Arabic names en-Nîl and an-Nîl both derive from the Latin Nilus and the Ancient Greek Νεῖλος, beyond that, however, the etymology is disputed. One possible etymology derives it from a Semitic Nahal, meaning river, the standard English names White Nile and Blue Nile, to refer to the rivers source, derive from Arabic names formerly applied only to the Sudanese stretches which meet at Khartoum. Above Khartoum, the Nile is also known as the White Nile, at Khartoum the river is joined by the Blue Nile. 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 drainage basin of the Nile covers 3,254,555 square kilometers, the source of the Nile is sometimes considered to be Lake Victoria, but the lake has feeder rivers of considerable size. It is either the Ruvyironza, which emerges in Bururi Province, Burundi, or the Nyabarongo, the two feeder rivers meet near Rusumo Falls on the Rwanda-Tanzania border. Gish Abay is reportedly the place where the water of the first drops of the Blue Nile develop. The Nile leaves Lake Nyanza at Ripon Falls near Jinja, Uganda and it flows north for some 130 kilometers, to Lake Kyoga. For the remaining part it flows westerly through the Murchison Falls until it reaches the very northern shores of Lake Albert where it forms a significant river delta
2.
Aswan
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Aswan, formerly spelled Assuan, is a city in the south of Egypt, the capital of the Aswan Governorate. Aswan is a market and tourist centre located just north of the Aswan Dams on the east bank of the Nile at the first cataract. The modern city has expanded and includes the separate community on the island of Elephantine. Aswan is the ancient city of Swenett, which in antiquity was the town of Ancient Egypt facing the south. Swenett is supposed to have derived its name from an Egyptian goddess with the same name, the ancient name of the city also is said to be derived from the Egyptian symbol for trade, or market. The city stood upon a peninsula on the bank of the Nile, immediately below the first cataract of the flowing waters. Navigation to the delta was possible from this location without encountering a barrier, the stone quarries of ancient Egypt located here were celebrated for their stone, and especially for the granitic rock called Syenite. They lie on either bank of the Nile, and a road,6.5 km in length, was cut beside them from Syene to Philae, Swenett was equally important as a military station as a place of traffic. Under every dynasty it was a town, and here tolls. Around 330, the legion stationed here received a bishop from Alexandria, the city is mentioned by numerous ancient writers, including Herodotus, Strabo, Stephanus of Byzantium, Ptolemy, Pliny the Elder, Vitruvius, and it appears on the Antonine Itinerary. It also is mentioned in the Book of Ezekiel and the Book of Isaiah, the latitude of the city that would become Aswan – located at 24° 5′ 23″ – was an object of great interest to the ancient geographers. They believed that it was seated immediately under the tropic, and that on the day of the summer solstice and they noted that the suns disc was reflected in a well at noon. However, Eratosthenes used this information together with measurements of the length on the solstice at Alexandria to perform the first known calculation of the circumference of the Earth. The Nile is nearly 650 m wide above Aswan, from this frontier town to the northern extremity of Egypt, the river flows for more than 1,200 km without bar or cataract. The voyage from Aswan to Alexandria usually took 21 to 28 days in favourable weather, Aswan has a hot desert climate like the rest of Egypt. Aswan and Luxor have the hottest summer days of any city in Egypt, Aswan is one of the hottest, sunniest and driest cities in the world. Averages high temperatures are consistently above 40 °C during summer while averages low temperatures remain above 25 °C, summers are long, prolonged and extremely hot. Averages high temperatures remain above 23 °C during the coldest month of the year while averages low temperatures remain above 8 °C, winters are short, brief and extremely warm
3.
Khartoum
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Khartoum is the capital and second largest city of Sudan and the state of Khartoum. It is located at the confluence of the White Nile, flowing north from Lake Victoria, the location where the two Niles meet is known as al-Mogran. The main Nile continues to north towards Egypt and the Mediterranean Sea. The origin of the word, Khartoum, is uncertain, one theory argues that khartoum is derived from Arabic khurṭūm, probably referring to the narrow strip of land extending between the Blue and White Niles. Some scholars speculate that the word derives from the Nubian word, Agartum, other Beja scholars suggest Khartoum is derived from the Beja word, Hartoom. Additionally, the dream interpreting magicians in Genesis 41,8 are referred to as חַרְטֻמֵּ֥י, suggesting that in ancient times the word already existed. In 1821, Khartoum was established 24 kilometres north of the ancient city of Soba, by Ibrahim Pasha, the son of Egypts ruler, Muhammad Ali Pasha, who had just incorporated Sudan into his realm. Originally, Khartoum served as an outpost for the Egyptian Army and it also became a focal point for the slave trade. Later, it became the center of Sudan and official capital. On 13 March 1884, troops loyal to the Mahdi Muhammad Ahmad started a siege of Khartoum, the siege ended in a massacre of the Anglo-Egyptian garrison. On 26 January 1885, the damaged city fell to the Mahdists. On 2 September 1898, Omdurman was the scene of the bloody Battle of Omdurman, in 1973, the city was the site of an anomalous hostage crisis in which members of Black September held 10 hostages at the Saudi Arabian embassy, five of them diplomats. The US ambassador, the US deputy ambassador, and the Belgian chargé daffaires were murdered, a 1973 United States Department of State document, declassified in 2006, concluded, The Khartoum operation was planned and carried out with the full knowledge and personal approval of Yasser Arafat. In 1977, the first oil pipeline between Khartoum and the Port of Sudan was completed, throughout the 1970s and 1980s, Khartoum was the destination for hundreds of thousands of refugees fleeing conflicts in neighboring nations such as Chad, Eritrea, Ethiopia, and Uganda. Many Eritrean and Ethiopian refugees assimilated into society, while others settled in large slums at the outskirts of the city, since the mid-1980s, large numbers of refugees from South Sudan and Darfur fleeing the violence of the Second Sudanese Civil War and Darfur conflict have settled around Khartoum. In 1991, Osama bin Laden purchased a house in the affluent al-Riyadh neighborhood of the city and he lived there until 1996, when he was banished from the country. The destruction of the factory produced diplomatic tension between the U. S. and Sudan, the factory ruins are now a tourist attraction. The sudden death of SPLA head and vice-president of Sudan, John Garang, the riots finally died down after Southern Sudanese politicians and tribal leaders sent strong messages to the rioters
4.
Islet
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An islet is a very small island. As suggested by its origin as islette, an Old French diminutive of isle, use of the term implies small size, but little attention is given to drawing an upper limit on its applicability. Cay or Key – an islet formed by the accumulation of sand deposits atop a reef Motu – A reef islet formed by broken coral and sand. River island – A small islet within the current of a river, rock – A rock, in the sense of a type of islet, is an uninhabited landform composed of rock, lying offshore, and having at most minimal vegetation. Sandbar – An exposed sandbar is another type of islet, Sea stack – A thin, vertical landform jutting out of a body of water. Skerry – A small rocky island, usually defined to be too small for habitation, subsidiary islets – A more technical application is to small land features, isolated by water, lying off the shore of a larger island. Likewise, any emergent land in an atoll is called an islet. Tidal island – Often small islands lie off the mainland of an area, being connected to it in low tide. In the Caribbean and West Atlantic, islets are often called cays or keys, rum Cay in the Bahamas and the Florida Keys off Florida are examples of islets. In the Channel Islands, they are identified by the suffix -hou from the Norse -holm. In Scotland and Ireland, they are often called inches, from the Gaelic innis, which originally meant island, in Ireland they are often termed skerries. In and around Polynesia, islets are widely known by the term motu, in and around the River Thames in England, small islands are known as aits or eyots. One long-term dispute over the status of such an islet was that of Snake Island, there are thousands of islets on Earth, approximately 24,000 islands and islets in the Stockholm archipelago alone. The following is a list of example islets from around the world, Islands or Rocks, Is that the Real Question. The Treatment of Islands in the Delimitation of Maritime Boundaries, in Myron H. Nordquist, John Norton Moore, Alfred H. A. The Law of the Sea Convention, US Accession and Globalization
5.
Whitewater
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The term is also loosely used to refer to less turbulent, but still agitated, flows. The term whitewater also has a meaning, applying to any river or creek itself that has a significant number of rapids. The term is used as an adjective describing boating on such rivers. Four factors, separately or in combination, can create rapids, gradient, constriction, obstruction, gradient, constriction and obstruction are streambed topography factors and are relatively consistent. Flow rate is dependent upon both seasonal variation in precipitation and snowmelt and upon release rates of upstream dams, streambed topography is the primary factor in creating rapids, and is generally consistent over time. The gradient of a river is the rate at which it loses elevation along its course and this loss determines the rivers slope, and to a large extent its rate of flow. Shallow gradients produce gentle, slow rivers while steep gradients are associated with raging torrents, constrictions can form a rapid when a rivers flow is forced into a narrower channel. This pressure causes the water to more rapidly and to react differently to riverbed events. As with hydraulics, the power of eddies increases with the flow rate, in large rivers with high flow rates next to an obstruction, eddy walls can occur. An eddy wall is formed when the height of the river is higher than the level of the water in the eddy behind the obstruction. A marked increase or decrease in flow can create a rapid, flow rate is typically measured in cubic metres per second, or in cubic feet per second, depending on the country. The most widely used grading system is the International Scale of River Difficulty, grade-VI rapids are sometimes downgraded to grade-V or V+ if they have been run successfully. Harder rapids are often portaged, a French term for carrying, a portaged rapid is where the boater lands and carries the boat around the hazard. A rapids grade is not fixed, since it may vary depending on the water depth. Although some rapids may be easier at high flows because features are covered or washed-out, high water usually makes rapids more difficult, at flood stage, even rapids which are usually easy can contain lethal and unpredictable hazards. Class 1, Very small rough areas, requires no maneuvering, Class 2, Some rough water, maybe some rocks, small drops, might require maneuvering. Class 3, Medium waves, maybe a 3–5 ft drop, Class 4, Whitewater, large waves, long rapids, rocks, maybe a considerable drop, sharp maneuvers may be needed. Class 5, Whitewater, large waves, continuous rapids, large rocks and hazards, maybe a large drop, often characterized by must make moves, i. e. failure to execute a specific maneuver at a specific point may result in serious injury or death
6.
Egypt
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Egypt, officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula. Egypt is a Mediterranean country bordered by the Gaza Strip and Israel to the northeast, the Gulf of Aqaba to the east, the Red Sea to the east and south, Sudan to the south, and Libya to the west. Across the Gulf of Aqaba lies Jordan, and across from the Sinai Peninsula lies Saudi Arabia, although Jordan and it is the worlds only contiguous Afrasian nation. Egypt has among the longest histories of any country, emerging as one of the worlds first nation states in the tenth millennium BC. Considered a cradle of civilisation, Ancient Egypt experienced some of the earliest developments of writing, agriculture, urbanisation, organised religion and central government. One of the earliest centres of Christianity, Egypt was Islamised in the century and remains a predominantly Muslim country. With over 92 million inhabitants, Egypt is the most populous country in North Africa and the Arab world, the third-most populous in Africa, and the fifteenth-most populous in the world. The great majority of its people live near the banks of the Nile River, an area of about 40,000 square kilometres, the large regions of the Sahara desert, which constitute most of Egypts territory, are sparsely inhabited. About half of Egypts residents live in areas, with most spread across the densely populated centres of greater Cairo, Alexandria. Modern Egypt is considered to be a regional and middle power, with significant cultural, political, and military influence in North Africa, the Middle East and the Muslim world. Egypts economy is one of the largest and most diversified in the Middle East, Egypt is a member of the United Nations, Non-Aligned Movement, Arab League, African Union, and Organisation of Islamic Cooperation. Miṣr is the Classical Quranic Arabic and modern name of Egypt. The name is of Semitic origin, directly cognate with other Semitic words for Egypt such as the Hebrew מִצְרַיִם, the oldest attestation of this name for Egypt is the Akkadian
7.
Sudan
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Sudan, also known as North Sudan since South Sudans independence and officially the Republic of the Sudan, is a country in Northern Africa. It is the third largest country in Africa, the River Nile divides the country into eastern and western halves. Before the Sudanese Civil War, South Sudan was part of Sudan, Sudan was home to numerous ancient civilizations, such as the Kingdom of Kush, Kerma, Nobatia, Alodia, Makuria, Meroë and others, most of which flourished along the Nile. During the pre-dynastic period Nubia and Nagadan Upper Egypt were identical, by virtue of its proximity to Egypt, the Sudan participated in the wider history of the Near East inasmuch as it was Christianized by the 6th century, and Islamized in the 15th. As a result of Christianization, the Old Nubian language stands as the oldest recorded Nilo-Saharan language, Sudan was the largest country in Africa and the Arab world until 2011, when South Sudan separated into an independent country, following an independence referendum. Sudan is now the third largest country in Africa and also the third largest country in the Arab world and its capital is Khartoum, the political, cultural and commercial centre of the nation. It is a representative democratic federal republic. The politics of Sudan are regulated by an organization called the National Assembly. The Sudanese legal system is based on Islamic law, the countrys place name Sudan is a name given to a geographical region to the south of the Sahara, stretching from Western Africa to eastern Central Africa. The name derives from the Arabic bilād as-sūdān, or the lands of the Blacks, during the fifth millennium BC migrations from the drying Sahara brought neolithic people into the Nile Valley along with agriculture. The population that resulted from this cultural and genetic mixing developed social hierarchy over the centuries become the Kingdom of Kush at 1700 BC. The Kingdom of Kush was an ancient Nubian state centered on the confluences of the Blue Nile and White Nile, and the Atbarah River and it was established after the Bronze Age collapse and the disintegration of the New Kingdom of Egypt, centered at Napata in its early phase. After King Kashta invaded Egypt in the eighth century BC, the Kushite kings ruled as pharaohs of the Twenty-fifth Dynasty of Egypt for a century before being defeated and driven out by the Assyrians. At the height of their glory, the Kushites conquered an empire that stretched from what is now known as South Kordofan all the way to the Sinai, pharaoh Piye attempted to expand the empire into the Near East, but was thwarted by the Assyrian king Sargon II. Sennacheribs successor Esarhaddon went further, and invaded Egypt itself, deposing Taharqa, Taharqa fled back to his homeland where he died two years later. Egypt became an Assyrian colony, however, king Tantamani, after succeeding Taharqa, Esarhaddon died while preparing to leave the Assyrian capital of Nineveh in order to eject him. However, his successor Ashurbanipal sent an army into southern Egypt and routed Tantamani. During Classical Antiquity, the Nubian capital was at Meroë, in ancient Greek geography, the Meroitic kingdom was known as Ethiopia
8.
Lake Nasser
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Lake Nasser is a vast reservoir in southern Egypt and northern Sudan. It is one of the largest man-made lakes in the world, before construction, Sudan was against the building of Lake Nasser because it would encroach on land in the North, where the Nubian people lived. They would have to be resettled, in the end Sudans land near the area of Lake Nasser was mostly flooded by the lake. Strictly, Lake Nasser refers only to the larger portion of the lake that is in Egyptian territory. The lake is some 69 km long and 35 km across at its widest point and it covers a total surface area of 5,250 km2 and has a storage capacity of some 132 km3 of water. The lake was created as a result of the construction of the Aswan High Dam across the waters of the Nile between 1958 and 1970. The lake is named after Gamal Abdel Nasser, one of the leaders of the Egyptian Revolution of 1952, and the second President of Egypt and it was President Anwar Sadat who inaugurated the lake and dam in 1970. Egypt lacks the water it needs for agriculture, the Grand Ethiopian Renaissance Dam, currently being constructed in Ethiopia will most likely adversely affect Lake Nasser. While the Renaissance Dam will benefit Sudan and Ethiopia, it has caused tensions between Egypt and Sudan and Ethiopia, Egypt is worried that the new dam will stop the Nile River from adequately filling Lake Nasser. The water supply of Lake Nasser produces electricity and there is concern that water flowing into Lake Nasser will adversely affect Aswan Dams ability to generate electricity. There are pumping stations that control the water going into Lake Nasser, a fish enclosure was built in Lake Nasser. Fishing among tourists, especially for Nile perch, has become increasingly popular, the statue of Ramses II and others, at Abu Simbel Temple, look out over Lake Nasser and tourists can enjoy the view from their cruise ship. Washington, GPO for the Library of Congress,1990, Lake Nasser at Encyclopædia Britannica 360 panorama of the lake
9.
Dar al-Manasir
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Dar al-Manasir is the region of the Fourth Cataract, the most impassable of all rapids of the Nile. It is the homeland of the Arab tribe of the Manasir, still today the water rapids cannot be crossed by any large boats making the region accessible only via a sandy and rocky desert track. At the height of the Island of Muqrat the Nile river is blocked from its northward course taking a sharp turn SSW for 280 kilometres before continuing to flow north, Dar al-Manasir will be successively flooded by the Merowe Dam project. Dar al-Manasir is confined by the upstream living Rubatab tribe in the area of Abu Hamed, Dar al-Manasir is covering a distance of approximately 130 km along the Nile with most villages lined up along the left river bank called Western side. But the heart of Dar al-Manasir consists of 14 islands, twelve of them inhabited, al-Qanaweit, Shiri, Kidir, Sherari, Sur, Us, Tibit, Dumag, Buni, Arag, Dirbi. The climate is arid with a rainfall of about 50 mm in good years. The exact amount and spatial distribution of the precipitation during the season in the months of August until October is highly variable. The rainy season coincides with the season of the Nile. The Manasir pursue small scale agriculture in the vicinity of the Nile. Tiny pockets of alluvial sediments and the seasonally inundated riverside land are irrigated and cultivated. The most important cash crops of the region are dates, during good rainy seasons, in which grazing grounds are abundant, many male Manasir join members of their tribe in the adjacent Bayudah Desert. Politically Dar al-Manasir belongs to the River Nile state, the administrative centre with the only local run police station, branch of the Agricultural Bank and Secondary Schools for both sexes is Shiri on Shiri Island. Dar al-Manasir is among the most neglected areas in Northern Sudan, apart from basic educational institutions virtually no public infrastructure such as tarred roads, bridges or ferry boats and hospitals exist. The landscape, described by Innes as most barren and the most beautiful along the Nile, is rocky, picturesque, Dar al-Manasir with all its villages and agricultural land will be successively flooded in the coming months by the Merowe Dam project. Its residents are going to be moved, but the exact area is still not clear. Date cultivation in Dar al-Manasir Gray, T, in, Sudan Notes and Records, Vol.30, p. 120-121. In, Sudan Notes and Records, Vol.14, p. 185-191, lagnah al-Tanfidhiyah lil-Mutathirin, Khasan al-Hamdab wa Qissah Tahgir Ahali al-Manasir. The Manasir of the Northern Sudan, Land and People, a Riverain Society and Resource Scarcity
10.
Erosion
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In earth science, erosion is the action of surface processes that remove soil, rock, or dissolved material from one location on the Earths crust, then transport it away to another location. Eroded sediment or solutes may be transported just a few millimetres, the rates at which such processes act control how fast a surface is eroded. Feedbacks are also possible between rates of erosion and the amount of eroded material that is carried by, for example. Processes of erosion that produce sediment or solutes from a place contrast with those of deposition, while erosion is a natural process, human activities have increased by 10-40 times the rate at which erosion is occurring globally. At well-known agriculture sites such as the Appalachian Mountains, intensive farming practices have caused erosion up to 100x the speed of the rate of erosion in the region. Excessive erosion causes both on-site and off-site problems, on-site impacts include decreases in agricultural productivity and ecological collapse, both because of loss of the nutrient-rich upper soil layers. In some cases, the end result is desertification. Off-site effects include sedimentation of waterways and eutrophication of bodies, as well as sediment-related damage to roads. Intensive agriculture, deforestation, roads, anthropogenic climate change and urban sprawl are amongst the most significant human activities in regard to their effect on stimulating erosion, however, there are many prevention and remediation practices that can curtail or limit erosion of vulnerable soils. Rainfall, and the surface runoff which may result from rainfall, produces four types of soil erosion, splash erosion, sheet erosion, rill erosion. Splash erosion is generally seen as the first and least severe stage in the erosion process. In splash erosion, the impact of a falling raindrop creates a crater in the soil. The distance these soil particles travel can be as much as 0.6 m vertically and 1.5 m horizontally on level ground. If the soil is saturated, or if the rate is greater than the rate at which water can infiltrate into the soil. If the runoff has sufficient flow energy, it will transport loosened soil particles down the slope, sheet erosion is the transport of loosened soil particles by overland flow. Rill erosion refers to the development of small, ephemeral concentrated flow paths which function as both sediment source and sediment delivery systems for erosion on hillslopes, generally, where water erosion rates on disturbed upland areas are greatest, rills are active. Flow depths in rills are typically of the order of a few centimetres or less and this means that rills exhibit hydraulic physics very different from water flowing through the deeper, wider channels of streams and rivers. Gully erosion occurs when water accumulates and rapidly flows in narrow channels during or immediately after heavy rains or melting snow
11.
Mediterranean Sea
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The sea is sometimes considered a part of the Atlantic Ocean, although it is usually identified as a separate body of water. The name Mediterranean is derived from the Latin mediterraneus, meaning inland or in the middle of land and it covers an approximate area of 2.5 million km2, but its connection to the Atlantic is only 14 km wide. The Strait of Gibraltar is a strait that connects the Atlantic Ocean to the Mediterranean Sea and separates Gibraltar. In oceanography, it is called the Eurafrican Mediterranean Sea or the European Mediterranean Sea to distinguish it from mediterranean seas elsewhere. The Mediterranean Sea has a depth of 1,500 m. The sea is bordered on the north by Europe, the east by Asia and it is located between latitudes 30° and 46° N and longitudes 6° W and 36° E. Its west-east length, from the Strait of Gibraltar to the Gulf of Iskenderun, the seas average north-south length, from Croatia’s southern shore to Libya, is approximately 800 km. The Mediterranean Sea, including the Sea of Marmara, has an area of approximately 2,510,000 square km. The sea was an important route for merchants and travelers of ancient times that allowed for trade, the history of the Mediterranean region is crucial to understanding the origins and development of many modern societies. In addition, the Gaza Strip and the British Overseas Territories of Gibraltar and Akrotiri, the term Mediterranean derives from the Latin word mediterraneus, meaning amid the earth or between land, as it is between the continents of Africa, Asia and Europe. The Ancient Greek name Mesogeios, is similarly from μέσο, between + γη, land, earth) and it can be compared with the Ancient Greek name Mesopotamia, meaning between rivers. The Mediterranean Sea has historically had several names, for example, the Carthaginians called it the Syrian Sea and latter Romans commonly called it Mare Nostrum, and occasionally Mare Internum. Another name was the Sea of the Philistines, from the people inhabiting a large portion of its shores near the Israelites, the sea is also called the Great Sea in the General Prologue by Geoffrey Chaucer. In Ottoman Turkish, it has also been called Bahr-i Sefid, in Modern Hebrew, it has been called HaYam HaTikhon, the Middle Sea, reflecting the Seas name in ancient Greek, Latin, and modern languages in both Europe and the Middle East. Similarly, in Modern Arabic, it is known as al-Baḥr al-Mutawassiṭ, in Turkish, it is known as Akdeniz, the White Sea since among Turks the white colour represents the west. Several ancient civilisations were located around the Mediterranean shores, and were influenced by their proximity to the sea. It provided routes for trade, colonisation, and war, as well as food for numerous communities throughout the ages, due to the shared climate, geology, and access to the sea, cultures centered on the Mediterranean tended to have some extent of intertwined culture and history. Two of the most notable Mediterranean civilisations in classical antiquity were the Greek city states, later, when Augustus founded the Roman Empire, the Romans referred to the Mediterranean as Mare Nostrum
12.
Nile Delta
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The Nile Delta is the delta formed in Northern Egypt where the Nile River spreads out and drains into the Mediterranean Sea. It is one of the worlds largest river deltas—from Alexandria in the west to Port Said in the east, from north to south the delta is approximately 160 kilometres in length. The Delta begins slightly down-river from Cairo, from north to south, the delta is approximately 160 kilometres in length. From west-to-east, it covers some 240 kilometres of coastline, the delta is sometimes divided into sections, with the Nile dividing into two main distributaries, the Damietta and the Rosetta, flowing into the Mediterranean at port cities with the same name. In the past, the delta had several distributaries, but these have been lost due to flood control, one such defunct distributary is Wadi Tumilat. The Suez Canal runs to the east of the delta, entering the coastal Lake Manzala in the north-east of the delta, to the north-west are three other coastal lakes or lagoons, Lake Burullus, Lake Idku and Lake Maryut. The Nile is considered to be a delta, as it resembles a triangle or flower when seen from above. The outer edges of the delta are eroding, and some coastal lagoons have seen increasing salinity levels as their connection to the Mediterranean Sea increases, topsoil in the delta can be as much as 70 feet in depth. People have lived in the Delta region for thousands of years, the Delta River used to flood on an annual basis, but this ended with the construction of the Aswan Dam. The Rosetta Stone was found in the Nile Delta in 1799 in the city of Rosetta. The delta was a constituent of Lower Egypt. The Biblical Land of Goshen was located in an area on the west bank of the Pelusiac distributary. There are many sites in and around the Nile Delta. About 39 million people live in the Delta region, outside of major cities, population density in the delta averages 1,000 persons/km² or more. Alexandria is the largest city in the delta with a population of more than 4.5 million. Other large cities in the delta include Shubra al Khaymah, Port Said, El-Mahalla El-Kubra, El Mansura, Tanta, during autumn, parts of the Nile River are red with lotus flowers. The Lower Nile and the Upper Nile have plants that grow in abundance, the Upper Nile plant is the Egyptian lotus, and the Lower Nile plant is the Papyrus Sedge, although it is not nearly as plentiful as it once was, and is becoming quite rare. Several hundred thousand birds winter in the delta, including the world’s largest concentrations of little gulls
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