The Sahara ( '''', ) is the world's second largest desert, after Antarctica. At over , it covers most of Northern Africa, making it almost as large as Europe or the United States. The Sahara stretches from the Red Sea, including parts of the Mediterranean coasts, to the outskirts of the Atlantic Ocean. To the south, it is delimited by the Sahel, a belt of semi-arid tropical savanna that composes the northern region of central and western Sub-Saharan Africa.
Some of the sand dunes can reach in height. The name comes from the Arabic word for desert: (صَحراء), "ṣaḥrā´" (; ).
The Sahara is the largest desert on the African continent. The southern border of the Sahara is marked by a band of semiarid savanna called the Sahel; south of the Sahel lies the lusher Sudan and the Congo River Basin. Most of the Sahara consists of rocky hamada; ergs (large sand dunes) form only a minor part.
People lived on the edge of the desert thousands of years ago since the last ice age. The Sahara was then a much wetter place than it is today. Over 30,000 petroglyphs of river animals such as crocodiles survive, with half found in the Tassili n'Ajjer in southeast Algeria. Fossils of dinosaurs, including ''Afrovenator'', ''Jobaria'' and ''Ouranosaurus'', have also been found here.
The modern Sahara, though, is not lush in vegetation, except in the Nile Valley, at a few oases, and in the northern highlands, where Mediterranean plants such as the olive tree are found to grow. The region has been this way since about 4200 years ago. Then, due to a climate change,the savannah changed into the sandy desert as we know it now. Dominant ethnicities in the Sahara are various Berber groups including Tuareg tribes, various Arabized Berber groups such as the Hassaniya-speaking Maure (Moors, also known as Sahrawis), including Toubou, Nubians, Zaghawa, Kanuri, Hausa, Songhai, and Fula/Fulani (; ). Important cities located in the Sahara include Nouakchott, the capital of Mauritania; Tamanrasset, Ouargla, Bechar, Hassi Messaoud, Ghardaia, and El Oued in Algeria; Timbuktu in Mali; Agadez in Niger; Ghat in Libya; and Faya-Largeau in Chad.
The desert landforms of the Sahara are shaped by wind or by occasional rains and include sand dunes and dune fields or sand seas (''erg''), stone plateaus (''hamada''), gravel plains (''reg''), dry valleys, and salt flats (''shatt'' or ''chott''). Unusual landforms include the Richat Structure in Mauritania.
Several deeply dissected mountains and mountain ranges, many volcanic, rise from the desert, including the Aïr Mountains, Ahaggar Mountains, Saharan Atlas, Tibesti Mountains, Adrar des Iforas, and the Red Sea hills. The highest peak in the Sahara is Emi Koussi, a shield volcano in the Tibesti range of northern Chad.
Most of the rivers and streams in the Sahara are seasonal or intermittent, the chief exception being the Nile River, which crosses the desert from its origins in central Africa to empty into the Mediterranean. Underground aquifers sometimes reach the surface, forming oases, including the Bahariya, Ghardaïa, Timimoun, Kufrah, and Siwah.
The central part of the Sahara is hyper-arid, with little vegetation. The northern and southern reaches of the desert, along with the highlands, have areas of sparse grassland and desert shrub, with trees and taller shrubs in wadis where moisture collects.
To the north, the Sahara reaches to the Mediterranean Sea in Egypt and portions of Libya, but in Cyrenaica and the Magreb, the Sahara borders Mediterranean forest, woodland, and scrub ecoregions of northern Africa, which have a Mediterranean climate characterized by a winter rainy season. According to the botanical criteria of Frank White and geographer Robert Capot-Rey, the northern limit of the Sahara corresponds to the northern limit of Date Palm cultivation and the southern limit of Esparto, a grass typical of the Mediterranean climate portion of the Maghreb and Iberia. The northern limit also corresponds to the isohyet of annual precipitation.
To the south, the Sahara is bounded by the Sahel, a belt of dry tropical savanna with a summer rainy season that extends across Africa from east to west. The southern limit of the Sahara is indicated botanically by the southern limit of ''Cornulaca monacantha'' (a drought-tolerant member of the Chenopodiaceae), or northern limit of ''Cenchrus biflorus'', a grass typical of the Sahel. According to climatic criteria, the southern limit of the Sahara corresponds to the isohyet of annual precipitation (this is a long-term average, since precipitation varies annually).
Once the ice sheets were gone, the northern Sahara dried out. In the southern Sahara though, the drying trend was soon counteracted by the monsoon, which brought rain further north than it does today. The monsoon season is caused by heating of air over the land during summer. The hot air rises and pulls in cool, wet air from the ocean, which causes rain. Thus, though it seems counterintuitive, the Sahara was wetter when it received more insolation in the summer. This was caused by a stronger tilt in Earth's axis of orbit than today, and perihelion occurred at the end of July around 7000 BC.
By around 4200 BC, the monsoon retreated south to approximately where it is today, leading to the gradual desertification of the Sahara. The Sahara is now as dry as it was about 13,000 years ago. These conditions are responsible for what has been called the Sahara pump theory.
The Sahara has one of the harshest climates in the world. The prevailing north-easterly wind often causes sand storms and dust devils. When this wind reaches the Mediterranean, it is known as sirocco and often reaches hurricane speeds in North Africa and southern Europe. Half of the Sahara receives less than of rain per year, and the rest receives up to per year. The rainfall happens very rarely, but when it does it is usually torrential when it occurs after long dry periods.
The southern boundary of the Sahara, as measured by rainfall, was observed to both advance and retreat between 1980 and 1990. As a result of drought in the Sahel, the southern boundary moved south overall during that period.
Recent signals indicate that the Sahara and surrounding regions are greening because of increased rainfall. Satellite imaging shows extensive regreening of the Sahel between 1982 and 2002, and in both Eastern and Western Sahara a more than 20 year long trend of increased grazing areas and flourishing trees and shrubs has been observed by climate scientist Stefan Kröpelin.
The Atlantic coastal desert occupies a narrow strip along the Atlantic coast, where fog generated offshore by the cool Canary Current provides sufficient moisture to sustain a variety of lichens, succulents, and shrubs. It covers 39,900 square kilometers (15,400 square miles) in Western Sahara and Mauritania.
The North Saharan steppe and woodlands lies along the northern desert, next to the Mediterranean forests, woodlands, and scrub ecoregions of the northern Maghreb and Cyrenaica. Winter rains sustain shrublands and dry woodlands that form a transition between the Mediterranean climate regions to the north and the hyper-arid Sahara proper to the south. It covers 1,675,300 square kilometers (646,800 square miles) in Algeria, Egypt, Libya, Mauritania, Morocco, Tunisia, and Western Sahara.
The Sahara desert ecoregion covers the hyper-arid central portion of the Sahara where rainfall is minimal and sporadic. Vegetation is rare, and this ecoregion consists mostly of sand dunes (''erg, chech, raoui''), stone plateaus (''hamadas''), gravel plains (''reg''), dry valleys (''wadis''), and salt flats. It covers 4,639,900 square km (1,791,500 square miles) of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Niger, and Sudan.
The South Saharan steppe and woodlands ecoregion occupies a narrow band running east and west between the hyper-arid Sahara and the Sahel savannas to the south. Movements of the equatorial Intertropical Convergence Zone (ITCZ) bring summer rains during July and August which average but vary greatly from year to year. These rains sustain summer pastures of grasses and herbs, with dry woodlands and shrublands along seasonal watercourses. The ecoregion covers 1,101,700 km2 (425,400 mi2) in Algeria, Chad, Mali, Mauritania, and Sudan.
In the West Saharan montane xeric woodlands, several volcanic highlands provide a cooler, moister environment that supports Saharo-Mediterranean woodlands and shrublands. The ecoregion covers 258,100 km2 (99,700 mi2), mostly in the Tassili n'Ajjer of Algeria, with smaller enclaves in the Aïr of Niger, the Dhar Adrar of Mauritania, and the Adrar des Iforas of Mali and Algeria.
The Tibesti-Jebel Uweinat montane xeric woodlands ecoregion consists of the Tibesti and Jebel Uweinat highlands. Higher and more regular rainfall and cooler temperatures support woodlands and shrublands of palms, acacias, myrtle, oleander, tamarix, and several rare and endemic plants. The ecoregion covers 82,200 km2 (31,700 mi2) in the Tibesti of Chad and Libya, and Jebel Uweinat on the border of Egypt, Libya, and Sudan.
The Saharan halophytics is an area of seasonally flooded saline depressions which is home to halophytic, or salt-adapted, plant communities. The Saharan halophytics cover 54,000 km2 (20,800 mi2), including the Qattara and Siwa depressions in northern Egypt, the Tunisian salt lakes of central Tunisia, Chott Melghir in Algeria, and smaller areas of Algeria, Mauritania, and Western Sahara.
The Tanezrouft is one of the harshest regions on Earth and the driest in the Sahara, with no vegetation and very little life. It is situated along the borders of Algeria, Niger and Mali, west of the Hoggar mountains.
The deathstalker scorpion can be long. Its venom contains large amounts of agitoxin and scyllatoxin and is very dangerous; however, a sting from this scorpion rarely kills a healthy adult.
Several species of fox live in the Sahara, including the fennec fox, pale fox and Rüppell's fox. The addax, a large white antelope, can go nearly a year in the desert without drinking. The dorcas gazelle is a north African gazelle that can also go for a long time without water.
The Saharan cheetah (Northwest African Cheetah) lives in Algeria, Togo, Niger, Mali, Benin, and Burkina Faso. There remain less than 250 mature cheetahs which are very cautious, fleeing any human presence. The cheetah avoids the sun from April to October. It then seeks the shelter of shrubs such as balanites and acacias. They are unusually pale.
Other animals include the monitor lizards, hyrax, Sand vipers, and small populations of African Wild Dog, in perhaps only 14 countries. and ostrich. There exist other animals in the Sahara (birds in particular) such as African Silverbill and Black-throated Firefinch among others. There are also small desert crocodiles in Mauritania and the Ennedi Plateau of Chad.
The central Sahara is estimated to include five hundred species of plants, which is extremely low considering the huge extent of the area. Plants such as acacia trees, palms, succulents, spiny shrubs, and grasses have adapted to the arid conditions, by growing lower to avoid water loss by strong winds, by storing water in their thick stems to use it in dry periods, by having long roots that travel horizontally to reach the maximum area of water and to find any surface moisture and by having small thick leaves or needles to prevent water loss by evapo-transpiration. Plant leaves may dry out totally and then recover.
Human activities are more likely to affect the habitat in areas of permanent water (oases) or where water comes close to the surface. Here, the local pressure on natural resources can be intense. The remaining populations of large mammals have been greatly reduced by hunting for food and recreation. In recent years development projects have started in the deserts of Algeria and Tunisia using irrigated water pumped from underground aquifers. These schemes often lead to soil degradation and salinization.
The Phoenician alphabet seems to have been adopted by the ancient Libyans of north Africa, and Tifinagh is still used today by Berber-speaking Tuareg camel herders of the central Sahara.
Sometime between 633 BC and 530 BC, Hanno the Navigator either established or reinforced Phoenician colonies in Western Sahara, but all ancient remains have vanished with virtually no trace.
Following the Islamic conquest of North Africa in the mid-seventh to early eighth centuries, trade across the desert intensified. The kingdoms of the Sahel, especially the Ghana Empire and the Mali Empire, grew rich and powerful exporting gold and salt to North Africa. The emirates along the Mediterranean Sea sent south manufactured goods and horses. From the Sahara itself, salt was exported. This process turned the scattered oasis communities into trading centres and brought them under the control of the empires on the edge of the desert. A significant slave trade crossed the desert. It has been estimated that from the 10th to the 19th century some 6,000 to 7,000 slaves were transported north each year. This trade persisted for several centuries until the development in Europe of the caravel allowed ships, first from Portugal but soon from all Western Europe, to sail around the desert and gather the resources from the source in Guinea. The Sahara was rapidly marginalized.
European colonialism in the Sahara began in the 19th century. France conquered Algeria from the Ottomans in 1830, and French rule spread south from Algeria and eastwards from Senegal into the upper Niger to include present-day Algeria, Chad, Mali, Mauritania, Morocco (1912), Niger, and Tunisia (1881).
Egypt, under Muhammad Ali and his successors, conquered Nubia in 1820–22, founded Khartoum in 1823, and conquered Darfur in 1874. Egypt, including the Sudan, became a British protectorate in 1882. Egypt and Britain lost control of the Sudan from 1882 to 1898 as a result of the Mahdist War. After its capture by British troops in 1898, the Sudan became a Anglo-Egyptian condominium.
Spain captured present-day Western Sahara after 1874. In 1912, Italy captured Libya from the Ottomans. To promote the Roman Catholic religion in the desert, the Pope in 1868 appointed a delegate Apostolic of the Sahara and the Sudan; later in the 19th century his jurisdiction was reorganized into the Vicariate Apostolic of Sahara.
Most of the Saharan states achieved independence after World War II: Libya in 1951, Morocco, Sudan, and Tunisia in 1956, Chad, Mali, Mauritania, and Niger in 1960, and Algeria in 1962. Spain withdrew from Western Sahara in 1975, and it was partitioned between Mauritania and Morocco. Mauritania withdrew in 1979, but Morocco continues to hold the territory.
In the modern era several mines and communities have developed to utilize the desert's natural resources. These include large deposits of oil and natural gas in Algeria and Libya and large deposits of phosphates in Morocco and Western Sahara.
A number of Trans-African highways have been proposed across the Sahara, including the Cairo-Dakar Highway along the Atlantic coast, the Trans-Sahara Highway from Algiers on the Mediterranean to Kano in Nigeria, the Tripoli-Cape Town Highway from Tripoli in Libya to Ndjamena in Chad, and the Cairo-Cape Town Highway which follows the Nile. Each of these highways is partially complete, with significant gaps and unpaved sections.
Category:Deserts Category:Palearctic Category:Deserts and xeric shrublands Category:Arabic words and phrases Category:Geography of the Arab League Category:Physiographic provinces Category:Geography of Africa
af:Sahara am:ሰሃራ በረሃ ar:الصحراء الكبرى an:Disierto d'o Sahara arc:ܨܚܪܐܐ ast:Desiertu del Sáḥara az:Saxara bn:সাহারা মরুভূমি zh-min-nan:Sahara Soa-bô͘ be:Пустыня Сахара be-x-old:Сахара bar:Sahara bs:Sahara br:Sahara bg:Сахара ca:Sàhara cv:Сахара cs:Sahara cy:Sahara da:Sahara de:Sahara et:Sahara el:Σαχάρα es:Desierto del Sahara eo:Saharo ext:Sáhara eu:Sahara fa:صحرای بزرگ آفریقا hif:Sahara fo:Sahara fr:Sahara fy:Sahara fur:Desert dal Sahara ga:An Sahára gd:Fàsach Sahara gl:Deserto do Sáhara gan:撒哈拉沙漠 ko:사하라 사막 hy:Սահարա hi:सहारा मरुस्थल hr:Sahara io:Sahara id:Gurun Sahara os:Сахарæ is:Sahara it:Deserto del Sahara he:סהרה jv:Ara-ara Sahara kn:ಸಹಾರ ka:საჰარა kk:Сахара kbd:Сахара sw:Sahara ku:Sahara lad:Desyerto del Sahara lbe:Сахара krc:Сахара la:Sahara lv:Sahāra lb:Sahara lt:Sachara li:Sahara jbo:sa'aras.zei kutytu'a lmo:Sahara hu:Szahara mk:Сахара ml:സഹാറ mt:Saħara mr:सहारा ms:Gurun Sahara mn:Сахарын цөл my:ဆဟာရ သဲကန္တာရ nl:Sahara ne:सहारा मरुभूमी new:सहारा ja:サハラ砂漠 pih:Sahara no:Sahara nn:Sahara oc:Sahara pnb:صحراۓ اعظم pms:Sahara pl:Sahara pt:Deserto do Saara kaa:Saxara sho'listanlıg'ı ro:Sahara qu:Sahara rue:Сагара ru:Сахара sah:Саhаара sa:सहारा stq:Sahara sq:Sahara scn:Sahara simple:Sahara sk:Sahara sl:Sahara szl:Sahara so:Saxaara sr:Сахара sh:Sahara fi:Sahara sv:Sahara tl:Sahara ta:சகாரா tt:Сахра te:సహారా ఎడారి th:ทะเลทรายสะฮารา tg:Саҳрои бузург tr:Sahra Çölü tk:Sahara uk:Сахара ur:صحرائے اعظم vec:Sahara vi:Sa mạc Sahara fiu-vro:Sahara wa:Sara war:Disyerto Sahara wo:Saara yi:סאהארא yo:Sahara zh-yue:撒哈拉沙漠 bat-smg:Sachara zh:撒哈拉沙漠This text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
name | Peter Maffay |
---|---|
background | solo_singer |
origin | Germany |
genre | RockMusicals |
years active | 1969–present |
label | BMG Ariola |
website | www.maffay.de |
notable instruments | }} |
Peter Maffay's career started with the publication of his first single, "Du" (''You'' in German). It was the biggest German hit in 1970 and brought Maffay instant fame. With the album Steppenwolf in 1979, Maffay became a major music star in Germany. The album sold 1.6 million copies, making it the best selling LP at that time. In 1980, the album ''Revanche'' (''Revenge'') broke his previous record, selling 2.1 million copies.
Maffay holds the German record for the most number one ranked singles in the single and album sales charts, including 12 albums. In addition, most of his studio albums reached the top ten. He also holds a German record for most albums to have sold over one million copies, with 14. His latest album ,''Laut und Leise'' (''Loud and Quiet''), became the fourteenth.
Altogether, Maffay has sold over 35 million records. Since 1980, each of his 13 tours (roughly every 2 years) has ranked among the three most visited attractions each season in Germany, with nine of them ranked first in that category.
Maffay also created a string of fairy tales about a little green dragon named Tabaluga, which was spread out onto four albums. The piece was also turned into a musical. Maffay went on tour individually with Tabaluga & Lilli in Germany; he later released a live album, DVD and live TV broadcast. The tour included Peter Maffay, Alexis, Nino de Angelo, Rufus Beck, and Carl Carlton among others.
In 1998, Maffay created an album in collaboration with artists from all corners of the world, including Aboriginal singers and musicians from Israel, called "Begegnungen". Julia Neigel, another famous German artist, is one of the musicians he usually works with in lyrics and singing in duets. She wrote two of his top singles - "Freiheit Die Ich Meine" and "Siehst Du die Sonne", a cover of Michel Polnareff's "Le Poupeé qui fait non".
He also starred in two films directed by Peter Patzak: ''The Joker'' in 1986, and ''Captured in Yemen'' in 1999. In addition, Maffay played a supporting role in the feature "The Polar Bear".
On 12 March 2011, Maffay received the Steiger Award (Germany).
Peter Maffay has been married four times, has a son and lives with his family on a farm on Majorca. One of his hobbies is motorcycle riding. In 1972, Maffay was severely injured in an accident after crashing his Harley Davidson. Later in life, he crossed the Sahara Desert several times on an off-road motorcycle.
Category:1949 births Category:Living people Category:German musicians Category:Transylvanian Saxons Category:Romanian expatriates in Germany Category:Romanian people of German descent Category:People from Braşov Category:German singer-songwriters Category:World Music Awards winners Category:Officers Crosses of the Order of Merit of the Federal Republic of Germany
ca:Peter Maffay de:Peter Maffay es:Peter Maffay id:Peter Maffay it:Peter Maffay nl:Peter Maffay no:Peter Maffay pl:Peter Maffay pt:Peter Maffay ro:Peter Maffay sq:Peter Maffay sv:Peter MaffayThis text is licensed under the Creative Commons CC-BY-SA License. This text was originally published on Wikipedia and was developed by the Wikipedia community.
The World News (WN) Network, has created this privacy statement in order to demonstrate our firm commitment to user privacy. The following discloses our information gathering and dissemination practices for wn.com, as well as e-mail newsletters.
We do not collect personally identifiable information about you, except when you provide it to us. For example, if you submit an inquiry to us or sign up for our newsletter, you may be asked to provide certain information such as your contact details (name, e-mail address, mailing address, etc.).
When you submit your personally identifiable information through wn.com, you are giving your consent to the collection, use and disclosure of your personal information as set forth in this Privacy Policy. If you would prefer that we not collect any personally identifiable information from you, please do not provide us with any such information. We will not sell or rent your personally identifiable information to third parties without your consent, except as otherwise disclosed in this Privacy Policy.
Except as otherwise disclosed in this Privacy Policy, we will use the information you provide us only for the purpose of responding to your inquiry or in connection with the service for which you provided such information. We may forward your contact information and inquiry to our affiliates and other divisions of our company that we feel can best address your inquiry or provide you with the requested service. We may also use the information you provide in aggregate form for internal business purposes, such as generating statistics and developing marketing plans. We may share or transfer such non-personally identifiable information with or to our affiliates, licensees, agents and partners.
We may retain other companies and individuals to perform functions on our behalf. Such third parties may be provided with access to personally identifiable information needed to perform their functions, but may not use such information for any other purpose.
In addition, we may disclose any information, including personally identifiable information, we deem necessary, in our sole discretion, to comply with any applicable law, regulation, legal proceeding or governmental request.
We do not want you to receive unwanted e-mail from us. We try to make it easy to opt-out of any service you have asked to receive. If you sign-up to our e-mail newsletters we do not sell, exchange or give your e-mail address to a third party.
E-mail addresses are collected via the wn.com web site. Users have to physically opt-in to receive the wn.com newsletter and a verification e-mail is sent. wn.com is clearly and conspicuously named at the point of
collection.If you no longer wish to receive our newsletter and promotional communications, you may opt-out of receiving them by following the instructions included in each newsletter or communication or by e-mailing us at michaelw(at)wn.com
The security of your personal information is important to us. We follow generally accepted industry standards to protect the personal information submitted to us, both during registration and once we receive it. No method of transmission over the Internet, or method of electronic storage, is 100 percent secure, however. Therefore, though we strive to use commercially acceptable means to protect your personal information, we cannot guarantee its absolute security.
If we decide to change our e-mail practices, we will post those changes to this privacy statement, the homepage, and other places we think appropriate so that you are aware of what information we collect, how we use it, and under what circumstances, if any, we disclose it.
If we make material changes to our e-mail practices, we will notify you here, by e-mail, and by means of a notice on our home page.
The advertising banners and other forms of advertising appearing on this Web site are sometimes delivered to you, on our behalf, by a third party. In the course of serving advertisements to this site, the third party may place or recognize a unique cookie on your browser. For more information on cookies, you can visit www.cookiecentral.com.
As we continue to develop our business, we might sell certain aspects of our entities or assets. In such transactions, user information, including personally identifiable information, generally is one of the transferred business assets, and by submitting your personal information on Wn.com you agree that your data may be transferred to such parties in these circumstances.