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Algerian Desert
The Algerian Desert ( ar, الصحراء الجزائرية) is located in north-central Africa and is part of the Sahara Desert. The desert occupies more than four-fifths of Algerian territory. Its expansion starts from the Saharan Atlas as a stony desert, gradually changing into a sand dune desert inland. The plateau of the Tassili n'Ajjer is located in the southeast, and its outstanding collection of prehistoric rock art saw it added to the UNESCO World Heritage List in 1982. Cities and towns such as Ouargla, Adrar, Algeria, Adrar, and particularly In Salah are among the hottest places in the Sahara. Annual average rainfall is well above in the northernmost part but the center and the southern part receive much less than . References Sahara Deserts of Algeria {{Algeria-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunes
A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, flat regions covered with wind-swept sand or dunes with little or no vegetation are called ''ergs'' or ''sand seas''. Dunes occur in different shapes and sizes, but most kinds of dunes are longer on the stoss (upflow) side, where the sand is pushed up the dune, and have a shorter ''slip face'' in the lee side. The valley or trough between dunes is called a ''dune slack''. Dunes are most common in desert environments, where the lack of moisture hinders the growth of vegetation that would otherwise interfere with the development of dunes. However, sand deposits are not restricted to deserts, and dunes are also found along sea shores, along streams in semiarid climates, in areas of glacial outwash, and in other areas where poorly cemented san ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamanrasset Desert
Tamanrasset (; ar, تامنراست), also known as Tamanghasset or Tamenghest, is an oasis city and capital of Tamanrasset Province in southern Algeria, in the Ahaggar Mountains. It is the chief city of the Algerian Tuareg. It is located an altitude of . As of the 2008 census, it has a population of 92,635, up from 72,741 in 1998, with an annual growth rate of 2.5%. Tamanrasset was originally established as a military outpost to guard the trans-Saharan trade routes. Surrounded by the barren Sahara Desert, very high temperatures of over have been recorded here. Tamanrasset is located at an oasis where, despite the difficult climate, citrus fruits, apricots, dates, almonds, cereals, corn, and figs are grown. The Tuareg people were once the town's main inhabitants. Tamanrasset is a tourist attraction during the cooler months. Visitors are also drawn to the Museum of the Hoggar, which offers many exhibits depicting Tuareg life and culture. The city is served by Tamanrasset Airport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahara Desert
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Saharan Atlas
Saharan may refer to: * Someone or something from the Sahara desert * Sahrawi people (also spelled Saharawi), the indigenous people of Western Sahara * Saharan languages The Saharan languages are a small family of languages across parts of the eastern Sahara, extending from northwestern Darfur to southern Libya, north and central Chad, eastern Niger and northeastern Nigeria. Noted Saharan languages include Kanuri ..., a subgroup of the Nilo-Saharan languages {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tassili N'Ajjer
Tassili n'Ajjer ( Berber: ''Tassili n Ajjer'', ar, طاسيلي ناجر; "Plateau of rivers") is a national park in the Sahara desert, located on a vast plateau in southeastern Algeria. Having one of the most important groupings of prehistoric cave art in the world, and covering an area of more than , Tassili n'Ajjer was inducted into the UNESCO World Heritage Site list in 1982 by Gonde Hontigifa. Geography Tassili n'Ajjer is a plateau in southeastern Algeria at the borders of Libya, Niger, and Mali, covering an area of 72,000 km2. It ranges from east-south-east to . Its highest point is the Adrar Afao that peaks at , located at . The nearest town is Djanet, situated approximately southwest of Tassili n'Ajjer. The archaeological site has been designated a national park, a Biosphere Reserve (cypresses) and was inducted into the UNESCO World Heritage Site list as Tassili n'Ajjer National Park. The plateau is of great geological and aesthetic interest. Its panorama of g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Rock Art
In archaeology, rock art is human-made markings placed on natural surfaces, typically vertical stone surfaces. A high proportion of surviving historic and prehistoric rock art is found in caves or partly enclosed rock shelters; this type also may be called cave art or parietal art. A global phenomenon, rock art is found in many culturally diverse regions of the world. It has been produced in many contexts throughout human history. In terms of technique, the four main groups are: * cave paintings, * petroglyphs, which are carved or scratched into the rock surface, * sculpted rock reliefs, and * geoglyphs, which are formed on the ground. The oldest known rock art dates from the Upper Palaeolithic period, having been found in Europe, Australia, Asia, and Africa. Anthropologists studying these artworks believe that they likely had magico-religious significance. The archaeological sub-discipline of rock art studies first developed in the late-19th century among Francophone scholars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It has 193 member states and 12 associate members, as well as partners in the non-governmental, intergovernmental and private sector. Headquartered at the World Heritage Centre in Paris, France, UNESCO has 53 regional field offices and 199 national commissions that facilitate its global mandate. UNESCO was founded in 1945 as the successor to the League of Nations's International Committee on Intellectual Cooperation.English summary). Its constitution establishes the agency's goals, governing structure, and operating framework. UNESCO's founding mission, which was shaped by the Second World War, is to advance peace, sustainable development and human rights by facilitating collaboration and dialogue among nations. It pursues this objective t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Heritage List
A World Heritage Site is a landmark or area with legal protection by an international convention administered by the UNESCO, United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for having cultural, historical, scientific or other form of significance. The sites are judged to contain "cultural heritage, cultural and natural heritage, natural heritage around the world considered to be of outstanding value to Human, humanity". To be selected, a World Heritage Site must be a somehow unique landmark which is geographically and historically identifiable and has special cultural or physical significance. For example, World Heritage Sites might be ancient ruins or historical structures, buildings, cities, deserts, forests, islands, lakes, monuments, mountains, or wilderness areas. A World Heritage Site may signify a remarkable accomplishment of humanity, and serve as evidence of our intellectual history on the planet, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ouargla
Ouargla ( Berber: Wargrən, ar, ورقلة) is the capital city of Ouargla Province in the Sahara Desert in southern Algeria. It has a flourishing petroleum industry and hosts one of Algeria's universities, the University of Ouargla. The commune of Ouargla had a population of 133,024 in the 2008 census, up from 112,339 in 1998, and an annual population growth rate of 1.7%. However, including the commune of Rouissat, found in Ouargla's urban area, gives a total population of 191,136. Historical Ouargla According to Ibn Khaldun the town was founded by Banu Wargla who, accompanied by sections of the Maghrawa and Banu Ifran, left the Tlemcen region and founded Ouargla. These Berbers of Ouarghla then embraced Ibadi doctrines, which later made the town an attractive refuge for the citizens of Tahert. In the 11th century, Banu Hilal, an Arab tribe living between Nile and Red Sea, settled in Tunisia, Tripolitania (western Libya) and Constantinois (eastern Algeria) which was Ouargla p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adrar, Algeria
Adrar ( Berber: Adrar, ⴰⴷⵔⴰⵔ; ar, أدرار) is the administrative capital of Adrar Province, the second largest province in Algeria. The commune is sited around an oasis in the Touat region of the Sahara Desert. According to a 2008 census it has a population of 64,781, up from 43,903 in 1998, with an annual growth rate of 4.0%. Adrar is mainly an agricultural town, characterized by its traditional irrigation system, the ''Foggara''. Geography Adrar lies at an elevation of above sea level. A large oasis lies to the southwest of the town; this oasis lies in the Tuat region, a string of oases running from Bouda in the north to Reggane in the south. A vast area of sand dunes, the Erg Chech, lies to the west, while a large rocky plateau, the Tademaït, lies to the east. Nuclear testing Adrar was the site of one of the In Ekker series, French nuclear tests during the 1960s. Climate Adrar has a hot desert climate (Köppen climate classification ''BWh''), with long, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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