Soubor:Cross section of the High Aswan Dam-2012-Flickr.jpg

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Fotografie + English: Cross section of the High Aswan Dam (built to control the Nile floods, store water and produce 2,1 GW of electricity), (Taken on September 13, 2012) * The Aswan Dam is an embankment dam situated across the Nile River in Aswan, Egypt. Since the 1960s, the name commonly refers to the High Dam. Construction of the High Dam became a key objective of the Egyptian Government following the Egyptian Revolution of 1952, as the ability to control floods, provide water for irrigation, and generate hydroelectricity were seen as pivotal to Egypt's industrialization. The High Dam was constructed between 1960 and 1970, and has had a significant impact on the economy and culture of Egypt. * Before the dams were built, the Nile River flooded every year during late summer, when water flowed down the valley from its East African drainage basin. These floods brought high water and natural nutrients and minerals that annually enriched the fertile soil along the floodplain and delta; this had made the Nile valley ideal for farming since ancient times. Because floods vary, in high-water years the whole crop might be wiped out, while in low-water years widespread drought and famine occasionally occurred. As Egypt's population grew and conditions changed, both a desire and ability developed to control the floods, and thus both protect and support farmland and the economically important cotton crop. With the reservoir storage provided by the Aswan dams, the floods could be lessened and the water stored for later release. * The dam powers twelve generators each rated at 175 megawatts, with a total of 2.1 gigawatts. Power generation began in 1967. When the dam first reached peak output it produced around half of Egypt's entire electricity production (about 15 percent by 1998) and allowed most Egyptian villages to use electricity for the first time. The High Dam has also improved the efficiency and the extension of the Old Aswan Hydropower stations by regulating upstream flows * Author: '''Jorge Láscar''' + pochází z Flickr.com, kde má status – Creative Commons Attribution 2.0 Generic (CC BY 2.0) FLICKR — https://www.flickr.com/photos/jlascar/14467308391/ [[Kategorie:CC fotografie]] [[Kategorie:Uživatelé FLICKRu]]

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