1.
Jbel Toubkal
–
Toubkal or Tubkal is a mountain peak in southwestern Morocco, located in the Toubkal National Park. At 4,167 metres, it is the highest peak in the Atlas Mountains, Anti Atlas and it is an ultra prominent peak located 63 km south of the city of Marrakesh, and is a popular destination for climbers. The first ascent by Europeans was on 12 June 1923 by the Marquis de Segonzac, Vincent Berger and Hubert Dolbeau, trekkers usually approach the mountain from the road-end village of Imlil. Qualified guides can be hired, as well as porters, to carry equipment, for experienced mountaineers, guides are not required for the normal route, as it is a moderate hike and orientation is not a problem. The normal route starts with a walk to the village of Aroumd. Past Aroumd a floodplain is crossed and the route follows the slope of the valley southwards. The valley bends to the east to the settlement of Sidi Chamharouch. It is possible to buy good meals in the Refuge du Toubkal, tents can be pitched near the refuges for a small charge. From that point a path crosses the stream, climbs a steep slope to the east and enters a valley. At the col the route left to the summit ridge of Jbel Toubkal. The 4, 167m summit is crowned with a pyramidal metal frame and views take in most of the Atlas. The ascent during the summer is non-technical yet moderately difficult, only complicated by steep and slippery scree slopes, sturdy boots and proper clothing are required, and trekking poles are helpful on the scree. An ice-axe may be needed on the remaining snowfields in the early summer, the ascent during the end of the winter and spring is more difficult. Crampons are necessary to ascend through the snow and - in some cases - ice and it is possible to climb the mountain in two days - first day up to the refuge, second day to the summit and back to Imlil. In summer the mountains can be dry, but are sometimes subject to storms. Although the temperature should remain above zero during the day, freezing conditions are possible over 3, in winter the mountains are covered in snow and ice, and can be prone to avalanches. Skiing is possible as the snow can lie to considerable depth, information about state of the route can be obtained at Marrakech tourist offices or at Imlil. Nearby villages of Asni, Ikkiss, Imlil and Tacheddirt, routes up Mount Toubkal Summitpost. org page about Jbel Toubkal Photo Gallery of Jebel Toubkal and the High Atlas Refuge information
Jbel Toubkal
–
Tizi'n'Toubkal from the summit ridge
Jbel Toubkal
–
The highest peak in Toubkal.
Jbel Toubkal
–
Birds soaring above the path to the summit.
2.
Summit
–
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex, peak, and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top, Summit may also refer to the highest point along a line, trail, or route. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
Summit
–
The highest elevation summit, Mount Everest, shown with a climber at the summit wearing an oxygen mask. The summit is 8850 m (29,035 ft) elevation. (While the cruising altitude of jetliners is roughly 10,000 m (32,808 feet), they are pressurized.)
Summit
–
View from the summit of Switzerland's highest,
Monte Rosa
Summit
–
The summit of
Mount Damavand,
Iran, in winter
Summit
–
Jeff Davis Peak, one of the highest peaks entirely within
Nevada
3.
Geographic coordinate system
–
A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
Geographic coordinate system
–
Longitude lines are perpendicular and latitude lines are parallel to the equator.
4.
Mountain range
–
A mountain range is a geographic area containing numerous geologically related mountains. A mountain system or system of ranges, sometimes is used to combine several geological features that are geographically related. Mountain ranges are usually segmented by highlands or mountain passes and valleys, individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, most geologically young mountain ranges on the Earths land surface are associated with either the Pacific Ring of Fire or the Alpide Belt. The Andes is 7,000 kilometres long and is considered the worlds longest mountain system. The Alpide belt includes Indonesia and southeast Asia, through the Himalaya, the belt also includes other European and Asian mountain ranges. The Himalayas contain the highest mountains in the world, including Mount Everest, mountain ranges outside of these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Altai Mountains and the Hijaz Mountains. If the definition of a range is stretched to include underwater mountains. The mountain systems of the earth are characterized by a tree structure, the sub-range relationship is often expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains, equivalently, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, and the White Mountains and the Blue Ridge Mountains are children of the Appalachians. The position of mountains influences climate, such as rain or snow, when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the side, it warms again and is drier. Often, a shadow will affect the leeward side of a range. Mountain ranges are constantly subjected to forces which work to tear them down. Erosion is at work while the mountains are being uplifted and long after until the mountains are reduced to low hills, rivers are traditionally believed to be the principle erosive factor on mountain ranges, with their ability of bedrock incision and sediment transport. The rugged topography of a range is the product of erosion. The basins adjacent to a mountain range are filled with sediments which are buried and turned into sedimentary rock. The early Cenozoic uplift of the Rocky Mountains of Colorado provides an example and this mass of rock was removed as the range was actively undergoing uplift
Mountain range
–
The
Himalayas, the highest mountain range on Earth, seen from space
Mountain range
–
Mountain range of
High Tatras in
Slovakia in 1865
Mountain range
–
The
Andes, the world's longest mountain range on the surface of a continent, seen from the air
Mountain range
–
Hillary and Norgay Montes on Pluto (14 July 2015)
5.
Atlas Mountain System
–
The Atlas Mountains are a mountain range in the Maghreb. It stretches around 2,500 km through Algeria, Morocco, the ranges highest peak is Jebel Toubkal, with an elevation of 4,167 metres in southwestern Morocco. It separates the Mediterranean and Atlantic coastlines from the Sahara Desert, the Atlas mountains are primarily inhabited by Berber populations. The terms for mountain in some Berber languages are adrar and adras, the mountains are home to a number of plant and animal species unique in Africa, often more like those of Europe, many of them are endangered and some have already gone extinct. The basement rock of most of Africa was formed during the Precambrian period, the Atlas was formed during three subsequent phases of Earths geology. The first tectonic deformation phase involves only the Anti-Atlas, which was formed in the Paleozoic Era as the result of continental collisions, North America, Europe and Africa were connected millions of years ago. The Anti-Atlas Mountains are believed to have originally formed as part of Alleghenian orogeny. These mountains were formed when Africa and America collided, and were once a chain rivaling todays Himalayas, today, the remains of this chain can be seen in the Fall Line region in the Eastern United States. Some remnants can also be found in the later formed Appalachians in North America, a second phase took place during the Mesozoic Era. It consisted of an extension of the Earths crust that rifted and separated the continents mentioned above. This extension was responsible for the formation of many thick intracontinental sedimentary basins including the present Atlas, most of the rocks forming the surface of the present High Atlas were deposited under the ocean at that time. Such convergent tectonic boundaries occur where two plates slide towards each other forming a zone, and/or a continental collision. However, there is a lack of evidence for the nature of the subduction in the Atlas region, or for the thickening of the Earths crust generally associated with continental collisions. In fact, one of the most striking features of the Atlas to geologists is the small amount of crustal thickening. Recent studies suggest that deep processes rooted in the Earths mantle may have contributed to the uplift of the High, the Atlas are rich in natural resources. There are deposits of ore, lead ore, copper, silver, mercury, rock salt, phosphate, marble. The range can be divided into four regions, Middle Atlas. The Middle Atlas is a portion of the Atlas mountain range lying completely in Morocco, the Middle Atlas is the westernmost of three Atlas Mountains chains that define a large, plateaued basin extending eastward
Atlas Mountain System
–
Toubkal Mountain in
Toubkal National Park in the High Atlas
Atlas Mountain System
Atlas Mountain System
–
Map showing the location of the Atlas Mountains across North Africa
Atlas Mountain System
–
View of the mountains
6.
Kasbah
–
A kasbah, or in older English casbah, and qasbah or qassabah in India, is a type of medina, or fortress. It was a place for the leader to live and a defense when a city was under attack. A kasbah has high walls, usually without windows, sometimes, they were built on hilltops so that they could be more easily defended. Some were placed near the entrance to harbors, having a kasbah built was a sign of wealth of some families in the city. When colonization started in 1830, in northern Algeria, there were a number of kasbahs that lasted for more than 100 years. The word kasbah may also be used to describe the old part of a city, the Spanish word alcazaba is a cognate naming the equivalent building in Andalusia or Moorish Spain. In Portuguese, it evolved into the word alcáçova, in Catalan, the evolution resulted in alcassaba. In Turkish and Urdu the word refers to a settlement larger than a village but smaller than a city, in short. In Serbo-Croatian, kasaba means an undeveloped, provincial small town, in India, a qasbah is a small town distinguished by the presence of Muslim families of rank. Bab Ksiba Kasbah of the Udayas, in Rabat, Morocco Casbah of Algiers, Algeria Kasbah of Béja, Tunisia Battle of Port Lyautey Alcazaba Rock the Casbah The Casbah Coffee Club Ksar
Kasbah
–
View of the Kasbah
Arabic قصبة
Algiers,
Algeria
7.
Atlas Mountains
–
The Atlas Mountains are a mountain range in the Maghreb. It stretches around 2,500 km through Algeria, Morocco, the ranges highest peak is Jebel Toubkal, with an elevation of 4,167 metres in southwestern Morocco. It separates the Mediterranean and Atlantic coastlines from the Sahara Desert, the Atlas mountains are primarily inhabited by Berber populations. The terms for mountain in some Berber languages are adrar and adras, the mountains are home to a number of plant and animal species unique in Africa, often more like those of Europe, many of them are endangered and some have already gone extinct. The basement rock of most of Africa was formed during the Precambrian period, the Atlas was formed during three subsequent phases of Earths geology. The first tectonic deformation phase involves only the Anti-Atlas, which was formed in the Paleozoic Era as the result of continental collisions, North America, Europe and Africa were connected millions of years ago. The Anti-Atlas Mountains are believed to have originally formed as part of Alleghenian orogeny. These mountains were formed when Africa and America collided, and were once a chain rivaling todays Himalayas, today, the remains of this chain can be seen in the Fall Line region in the Eastern United States. Some remnants can also be found in the later formed Appalachians in North America, a second phase took place during the Mesozoic Era. It consisted of an extension of the Earths crust that rifted and separated the continents mentioned above. This extension was responsible for the formation of many thick intracontinental sedimentary basins including the present Atlas, most of the rocks forming the surface of the present High Atlas were deposited under the ocean at that time. Such convergent tectonic boundaries occur where two plates slide towards each other forming a zone, and/or a continental collision. However, there is a lack of evidence for the nature of the subduction in the Atlas region, or for the thickening of the Earths crust generally associated with continental collisions. In fact, one of the most striking features of the Atlas to geologists is the small amount of crustal thickening. Recent studies suggest that deep processes rooted in the Earths mantle may have contributed to the uplift of the High, the Atlas are rich in natural resources. There are deposits of ore, lead ore, copper, silver, mercury, rock salt, phosphate, marble. The range can be divided into four regions, Middle Atlas. The Middle Atlas is a portion of the Atlas mountain range lying completely in Morocco, the Middle Atlas is the westernmost of three Atlas Mountains chains that define a large, plateaued basin extending eastward
Atlas Mountains
–
Toubkal Mountain in
Toubkal National Park in the High Atlas
Atlas Mountains
Atlas Mountains
–
Map showing the location of the Atlas Mountains across North Africa
Atlas Mountains
–
View of the mountains
8.
Arabic language
–
Arabic is a Central Semitic language that was first spoken in Iron Age northwestern Arabia and is now the lingua franca of the Arab world. Arabic is also the language of 1.7 billion Muslims. It is one of six languages of the United Nations. The modern written language is derived from the language of the Quran and it is widely taught in schools and universities, and is used to varying degrees in workplaces, government, and the media. The two formal varieties are grouped together as Literary Arabic, which is the language of 26 states. Modern Standard Arabic largely follows the standards of Quranic Arabic. Much of the new vocabulary is used to denote concepts that have arisen in the post-Quranic era, Arabic has influenced many languages around the globe throughout its history. During the Middle Ages, Literary Arabic was a vehicle of culture in Europe, especially in science, mathematics. As a result, many European languages have borrowed many words from it. Many words of Arabic origin are found in ancient languages like Latin. Balkan languages, including Greek, have acquired a significant number of Arabic words through contact with Ottoman Turkish. Arabic has also borrowed words from languages including Greek and Persian in medieval times. Arabic is a Central Semitic language, closely related to the Northwest Semitic languages, the Ancient South Arabian languages, the Semitic languages changed a great deal between Proto-Semitic and the establishment of the Central Semitic languages, particularly in grammar. Innovations of the Central Semitic languages—all maintained in Arabic—include, The conversion of the suffix-conjugated stative formation into a past tense, the conversion of the prefix-conjugated preterite-tense formation into a present tense. The elimination of other prefix-conjugated mood/aspect forms in favor of new moods formed by endings attached to the prefix-conjugation forms, the development of an internal passive. These features are evidence of descent from a hypothetical ancestor. In the southwest, various Central Semitic languages both belonging to and outside of the Ancient South Arabian family were spoken and it is also believed that the ancestors of the Modern South Arabian languages were also spoken in southern Arabia at this time. To the north, in the oases of northern Hijaz, Dadanitic and Taymanitic held some prestige as inscriptional languages, in Najd and parts of western Arabia, a language known to scholars as Thamudic C is attested
Arabic language
–
The Galland Manuscript of
One Thousand and One Nights, 14th century
Arabic language
–
al-ʿArabiyyah in written Arabic (
Naskh script)
Arabic language
–
Bilingual traffic sign in
Qatar.
Arabic language
–
Examples of how the Arabic root and form system works.
9.
French language
–
French is a Romance language of the Indo-European family. It descended from the Vulgar Latin of the Roman Empire, as did all Romance languages, French has evolved from Gallo-Romance, the spoken Latin in Gaul, and more specifically in Northern Gaul. Its closest relatives are the other langues doïl—languages historically spoken in northern France and in southern Belgium, French was also influenced by native Celtic languages of Northern Roman Gaul like Gallia Belgica and by the Frankish language of the post-Roman Frankish invaders. Today, owing to Frances past overseas expansion, there are numerous French-based creole languages, a French-speaking person or nation may be referred to as Francophone in both English and French. French is a language in 29 countries, most of which are members of la francophonie. As of 2015, 40% of the population is in Europe, 35% in sub-Saharan Africa, 15% in North Africa and the Middle East, 8% in the Americas. French is the fourth-most widely spoken mother tongue in the European Union, 1/5 of Europeans who do not have French as a mother tongue speak French as a second language. As a result of French and Belgian colonialism from the 17th and 18th century onward, French was introduced to new territories in the Americas, Africa, most second-language speakers reside in Francophone Africa, in particular Gabon, Algeria, Mauritius, Senegal and Ivory Coast. In 2015, French was estimated to have 77 to 110 million native speakers, approximately 274 million people are able to speak the language. The Organisation internationale de la Francophonie estimates 700 million by 2050, in 2011, Bloomberg Businessweek ranked French the third most useful language for business, after English and Standard Mandarin Chinese. Under the Constitution of France, French has been the language of the Republic since 1992. France mandates the use of French in official government publications, public education except in specific cases, French is one of the four official languages of Switzerland and is spoken in the western part of Switzerland called Romandie, of which Geneva is the largest city. French is the language of about 23% of the Swiss population. French is also a language of Luxembourg, Monaco, and Aosta Valley, while French dialects remain spoken by minorities on the Channel Islands. A plurality of the worlds French-speaking population lives in Africa and this number does not include the people living in non-Francophone African countries who have learned French as a foreign language. Due to the rise of French in Africa, the total French-speaking population worldwide is expected to reach 700 million people in 2050, French is the fastest growing language on the continent. French is mostly a language in Africa, but it has become a first language in some urban areas, such as the region of Abidjan, Ivory Coast and in Libreville. There is not a single African French, but multiple forms that diverged through contact with various indigenous African languages, sub-Saharan Africa is the region where the French language is most likely to expand, because of the expansion of education and rapid population growth
French language
–
The
"arrêt" signs (French for "stop") are used in
Canada while the international stop, which is also a valid French word, is used in France as well as other French-speaking countries and regions.
French language
–
Regions where French is the main language
French language
–
Town sign in
Standard Arabic and French at the entrance of
Rechmaya in
Lebanon.
French language
–
An obsolete 100
Lebanese pound note with the French language inscriptions "Banque du Liban" and "Cent livres".
10.
Berber languages
–
Berber or the Berber languages or the Amazigh language are a family of similar and closely related languages and dialects indigenous to North Africa. Large Berber-speaking migrant communities, numbering today about 4 million, have been living in Western Europe, about half of this population was born in Europe. Berber constitutes a branch of the Afroasiatic language family, and has been attested since ancient times, the number of Berbers is much higher than the number of Berber speakers. The bulk of the populations of the Maghreb countries are considered to have Berber ancestors, in Algeria, for example, a majority of the population consists of Arabized Berbers. There is a cultural and political movement among speakers of the closely related varieties of Northern Berber to promote and unify them under a standard language, called. The name Tamaziɣt is the current native name of the Berber language in the Moroccan Middle-Atlas region, the Rif regions, in other Berber-speaking area this name was lost. There is historical evidence, from medieval Berber manusctipts, that all native North Africans from Libya to Morocco have called their language, Tamaziɣt. The name Tamaziɣt is currently being used by educated Berbers to refer to the written Berber language. Around 90 percent of the Berber-speaking population speak one of six major varieties of Berber and they are, in the order of demographic weight, Tashelhit, Kabyle, Atlas Tamazight, Riffian, Shawi and Tuareg. The Berber languages and dialects have had a tradition, on and off, for about 2,500 years, although the tradition has been frequently disrupted by cultural shifts. They were first written in the Libyco-Berber and Tifinagh abjad, still used by the Tuareg, the oldest dated inscription is from about 200 BCE. The Berber Latin alphabet was used by most European and Berber linguists during the 19th and 20th centuries. In the 19th and 20th century European and native Berber linguists, a modernized form of the Tifinagh alphabet, called Neo-Tifinagh, was adopted in Morocco in 2003 for writing Berber, but many Moroccan Berber publications still use the Berber Latin alphabet. Algerians mostly use the Berber Latin alphabet in Berber language education at public schools, Mali and Niger recognize a Tuareg-Berber Latin alphabet customized to the Tuareg phonological system. However, traditional Tifinagh is still used in those countries, the term Berber has been used in Europe since at least the 17th century, and is still used today. It was borrowed from Latin Barbari, the Latin word is also found in the Arabic designation for these populations, البربر, al-Barbar, see names of the Berber people. Etymologically, the Berber root Mazigh means free man, noble man, the feminine Tamazight traditionally referred specifically to the Riffian and Central Atlas Tamazight languages. European languages distinguish between the words Berber and barbaric, while Arabic has the same word al-barbari for both meanings, some other Berber writers, especially in Morocco, prefer to refer to Berber with Amazigh when writing about it in French or English
Berber languages
–
Berber language poetry in Arabic script with its translation in French
Berber languages
–
Tarifit (Riffian)
Berber languages
–
Kabylian manuscript on the 18th century
11.
Morocco
–
Morocco, officially known as the Kingdom of Morocco, is a sovereign country located in the Maghreb region of North Africa. Geographically, Morocco is characterized by a mountainous interior, large tracts of desert. Morocco has a population of over 33.8 million and an area of 446,550 km2 and its capital is Rabat, and the largest city is Casablanca. Other major cities include Marrakesh, Tangier, Tetouan, Salé, Fes, Agadir, Meknes, Oujda, Kenitra, a historically prominent regional power, Morocco has a history of independence not shared by its neighbours. Marinid and Saadi dynasties continued the struggle against foreign domination, the Alaouite dynasty, the current ruling dynasty, seized power in 1666. In 1912 Morocco was divided into French and Spanish protectorates, with a zone in Tangier. Moroccan culture is a blend of Arab, indigenous Berber, Sub-Saharan African, Morocco claims the non-self-governing territory of Western Sahara as its Southern Provinces. Morocco annexed the territory in 1975, leading to a war with indigenous forces until a cease-fire in 1991. Peace processes have thus far failed to break the political deadlock, Morocco is a constitutional monarchy with an elected parliament. The King of Morocco holds vast executive and legislative powers, especially over the military, foreign policy, the king can issue decrees called dahirs which have the force of law. He can also dissolve the parliament after consulting the Prime Minister, Moroccos predominant religion is Islam, and the official languages are Arabic and Tamazight. The Moroccan dialect, referred to as Darija, and French are also widely spoken, Morocco is a member of the Arab League, the Union for the Mediterranean, and the African Union. It has the fifth largest economy of Africa, the full Arabic name al-Mamlakah al-Maghribiyyah translates to Kingdom of the West, although the West in Arabic is الغرب Al-Gharb. The basis of Moroccos English name is Marrakesh, its capital under the Almoravid dynasty, the origin of the name Marrakesh is disputed, but is most likely from the Berber words amur akush or Land of God. The modern Berber name for Marrakesh is Mṛṛakc, in Turkish, Morocco is known as Fas, a name derived from its ancient capital of Fes. The English name Morocco is an anglicisation of the Spanish Marruecos, the area of present-day Morocco has been inhabited since Paleolithic times, sometime between 190,000 and 90,000 BC. During the Upper Paleolithic, the Maghreb was more fertile than it is today, twenty-two thousand years ago, the Aterian was succeeded by the Iberomaurusian culture, which shared similarities with Iberian cultures. Skeletal similarities have been suggested between the Iberomaurusian Mechta-Afalou burials and European Cro-Magnon remains, the Iberomaurusian was succeeded by the Beaker culture in Morocco
Morocco
–
Berber Roman King
Ptolemy of Mauretania.
Morocco
–
Flag
Morocco
–
Roman mosaic of Diana in
Volubilis.
Morocco
–
Morocco, Safi ceramic vessel Jobbana
12.
Northern Africa
–
North Africa or Northern Africa is the northernmost region of Africa. The United Nationss definition of Northern Africa is, Algeria, Egypt, Libya, Morocco, Sudan, Tunisia, the countries of Algeria, Morocco, Tunisia, and Libya are often collectively referred to as the Maghreb, which is the Arabic word for sunset. Egypt lies to the northeast and encompasses part of West Asia, while Sudan is situated on the edge of the Sahel, Egypt is a transcontinental country because of the Sinai Peninsula, which geographically lies in Western Asia. North Africa also includes a number of Spanish possessions, the Canary Islands and Madeira in the North Atlantic Ocean northwest of the African mainland are included in considerations of the region. From 3500 BC, following the abrupt desertification of the Sahara due to changes in the Earths orbit. The Islamic influence in the area is significant, and North Africa is a major part of the Muslim world. Some researchers have postulated that North Africa rather than East Africa served as the point for the modern humans who first trekked out of the continent in the Out of Africa migration. The Atlas Mountains extend across much of Morocco, northern Algeria and Tunisia, are part of the mountain system that also runs through much of Southern Europe. They recede to the south and east, becoming a steppe landscape before meeting the Sahara desert, the sediments of the Sahara overlie an ancient plateau of crystalline rock, some of which is more than four billion years old. Sheltered valleys in the Atlas Mountains, the Nile Valley and Delta, a wide variety of valuable crops including cereals, rice and cotton, and woods such as cedar and cork, are grown. Typical Mediterranean crops, such as olives, figs, dates and citrus fruits, the Nile Valley is particularly fertile, and most of the population in Egypt and Sudan live close to the river. Elsewhere, irrigation is essential to improve yields on the desert margins. The inhabitants of Saharan Africa are generally divided in a manner corresponding to the principal geographic regions of North Africa, the Maghreb, the Nile valley. The edge of the Sahel, to the south of Egypt has mainly been inhabited by Nubians, Ancient Egyptians record extensive contact in their Western desert with people that appear to have been Berber or proto-Berber, as well as Nubians from the south. They have contributed to the Arabized Berber populations, the official language or one of the official languages in all of the countries in North Africa is Arabic. The people of the Maghreb and the Sahara regions speak Berber languages and several varieties of Arabic, the Arabic and Berber languages are distantly related, both being members of the Afroasiatic language family. The Tuareg Berber languages are more conservative than those of the coastal cities. Over the years, Berbers have been influenced by contact with cultures, Greeks, Phoenicians, Egyptians, Romans, Vandals, Arabs, Europeans
Northern Africa
–
Market of
Biskra in Algeria, 1899
Northern Africa
–
Northern Africa (UN subregion)
Northern Africa
–
The
kasbah of
Aït Benhaddou in Morocco
Northern Africa
–
The first
Roman emperor native to North Africa was
Septimius Severus, born in Leptis Magna in present-day Libya.
13.
Atlantic Ocean
–
The Atlantic Ocean is the second largest of the worlds oceans with a total area of about 106,460,000 square kilometres. It covers approximately 20 percent of the Earths surface and about 29 percent of its surface area. It separates the Old World from the New World, the Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Eurasia and Africa to the east, and the Americas to the west. The Equatorial Counter Current subdivides it into the North Atlantic Ocean, in contrast, the term Atlantic originally referred specifically to the Atlas Mountains in Morocco and the sea off the Strait of Gibraltar and the North African coast. The Greek word thalassa has been reused by scientists for the huge Panthalassa ocean that surrounded the supercontinent Pangaea hundreds of years ago. The term Aethiopian Ocean, derived from Ancient Ethiopia, was applied to the Southern Atlantic as late as the mid-19th century, many Irish or British people refer to the United States and Canada as across the pond, and vice versa. The Black Atlantic refers to the role of ocean in shaping black peoples history. Irish migration to the US is meant when the term The Green Atlantic is used, the term Red Atlantic has been used in reference to the Marxian concept of an Atlantic working class, as well as to the Atlantic experience of indigenous Americans. Correspondingly, the extent and number of oceans and seas varies, the Atlantic Ocean is bounded on the west by North and South America. It connects to the Arctic Ocean through the Denmark Strait, Greenland Sea, Norwegian Sea, to the east, the boundaries of the ocean proper are Europe, the Strait of Gibraltar and Africa. In the southeast, the Atlantic merges into the Indian Ocean, the 20° East meridian, running south from Cape Agulhas to Antarctica defines its border. In the 1953 definition it extends south to Antarctica, while in later maps it is bounded at the 60° parallel by the Southern Ocean, the Atlantic has irregular coasts indented by numerous bays, gulfs, and seas. Including these marginal seas the coast line of the Atlantic measures 111,866 km compared to 135,663 km for the Pacific. Including its marginal seas, the Atlantic covers an area of 106,460,000 km2 or 23. 5% of the ocean and has a volume of 310,410,900 km3 or 23. 3%. Excluding its marginal seas, the Atlantic covers 81,760,000 km2 and has a volume of 305,811,900 km3, the North Atlantic covers 41,490,000 km2 and the South Atlantic 40,270,000 km2. The average depth is 3,646 m and the maximum depth, the bathymetry of the Atlantic is dominated by a submarine mountain range called the Mid-Atlantic Ridge. It runs from 87°N or 300 km south of the North Pole to the subantarctic Bouvet Island at 42°S, the MAR divides the Atlantic longitudinally into two halves, in each of which a series of basins are delimited by secondary, transverse ridges. The MAR reaches above 2000 m along most of its length, the MAR is a barrier for bottom water, but at these two transform faults deep water currents can pass from one side to the other
Atlantic Ocean
–
The Atlantic Ocean as seen from the western coast of
Portugal
Atlantic Ocean
–
The Atlantic Ocean, not including
Arctic and
Antarctic regions
Atlantic Ocean
–
The Atlantic Ocean as seen from
Atlantic City, New Jersey.
Atlantic Ocean
–
Myrtle Beach, South Carolina view of the Atlantic Ocean.
14.
Algeria
–
Algeria, officially the Peoples Democratic Republic of Algeria, is a sovereign state in North Africa on the Mediterranean coast. Its capital and most populous city is Algiers, located in the far north. With an area of 2,381,741 square kilometres, Algeria is the tenth-largest country in the world, the country is a semi-presidential republic consisting of 48 provinces and 1,541 communes. Abdelaziz Bouteflika has been President since 1999, Berbers are the indigenous inhabitants of Algeria. Algeria is a regional and middle power, the North African country supplies large amounts of natural gas to Europe, and energy exports are the backbone of the economy. According to OPEC Algeria has the 16th largest oil reserves in the world, Sonatrach, the national oil company, is the largest company in Africa. Algeria has one of the largest militaries in Africa and the largest defence budget on the continent, most of Algerias weapons are imported from Russia, with whom they are a close ally. Algeria is a member of the African Union, the Arab League, OPEC, the countrys name derives from the city of Algiers. The citys name in turn derives from the Arabic al-Jazāir, a form of the older Jazāir Banī Mazghanna. In the region of Ain Hanech, early remnants of hominid occupation in North Africa were found, neanderthal tool makers produced hand axes in the Levalloisian and Mousterian styles similar to those in the Levant. Algeria was the site of the highest state of development of Middle Paleolithic Flake tool techniques, tools of this era, starting about 30,000 BC, are called Aterian. The earliest blade industries in North Africa are called Iberomaurusian and this industry appears to have spread throughout the coastal regions of the Maghreb between 15,000 and 10,000 BC. Neolithic civilization developed in the Saharan and Mediterranean Maghreb perhaps as early as 11,000 BC or as late as between 6000 and 2000 BC and this life, richly depicted in the Tassili nAjjer paintings, predominated in Algeria until the classical period. The amalgam of peoples of North Africa coalesced eventually into a native population that came to be called Berbers. These settlements served as market towns as well as anchorages, as Carthaginian power grew, its impact on the indigenous population increased dramatically. Berber civilization was already at a stage in which agriculture, manufacturing, trade, by the early 4th century BC, Berbers formed the single largest element of the Carthaginian army. In the Revolt of the Mercenaries, Berber soldiers rebelled from 241 to 238 BC after being unpaid following the defeat of Carthage in the First Punic War. They succeeded in obtaining control of much of Carthages North African territory, the Carthaginian state declined because of successive defeats by the Romans in the Punic Wars
Algeria
–
Ancient
Roman Empire ruins of
Timgad. Street leading to the Arch of Trajan.
Algeria
–
Flag
Algeria
–
Ancient Roman theatre in Djémila
Algeria
–
Numidia along with Egypt, Rome, and Carthage 200 BCE
15.
Anti-Atlas
–
The Anti-Atlas, Lesser Atlas or Little Atlas is a mountain range in Morocco, a part of the Atlas Mountains in the northwest of Africa. The range borders on the Sahara to the south, the Anti-Atlas is a desolate world of rocky outcrops and lunar landscapes where the contrasts are extreme. Most of the land is dry and barren, but water gathers and runs in some remote places, villages in the area are limited to a few small houses surrounded by palm trees. In some contexts, the Anti-Atlas is considered separate from the Atlas mountain System, the summits of the Anti-Atlas reach average heights of 2, 500–2,700 m, with a few peaks reaching higher. To the north lies a plateau at 1700–1800 m in height, to the south lie the Sahara highlands at approximately 700 m. On the heights of Ouarzazate, the massif is cut through by the Draa valley, the range is strongly fissured, particularly in a southerly direction. The Anti-Atlas area is a traditionally Berber region, inhabited by the Chleuh group and it is sparsely inhabited and there are no large cities in the area. The main town is Tafraoute, which has described as Moroccos Berber heartland. There are cave paintings in certain areas of the range, the eastern prolongation of the Anti-Atlas is the Jbel Saghro range. The Jbel Sirwa is its northern prolongation, connecting with a section of the High Atlas range, the summit of Djebel Siroua, of volcanic origin, reaches 3304 m. The Jebel Bani is a lower range running along the southern side of the Anti Atlas. The basement rock of Africa was formed in the Precambrian, and is older than the Atlas mountains. The Anti-Atlas range developed even later, the Anti-Atlas range formed in the Paleozoic, as a result of continental collisions. North America, Europe and Africa were connected as part of two continents, Euramerica and Gondwana, which ground against one another to create the former Central Pangean Mountains. Evidence shows that the Anti-Atlas mountains were formed as part of the Alleghenian orogeny that also formed the Appalachians, formed when Gondwana. There are indications they were once a chain of mountains far higher than the Himalayas are today, erosion continued to reduce the Anti-Atlas range so that it is today less massive than the High Atlas range to the north. In the Anti-Atlas, the precipitation annually is typically below 200 mm, while the conditions on the north and west slopes are locally more wet. Climatically, the mountains are separated from the Mediterraneans influence by the High Atlas to its north, the driest area is the Jbel Saghro
Anti-Atlas
–
A section of the Anti-Atlas near Tafraout. The peak in the background is Djebel el Kest.
Anti-Atlas
Anti-Atlas
–
Panorama from
Jbel Aklim
16.
Marrakech
–
Marrakesh, also known by the French spelling Marrakech, is a major city of the Kingdom of Morocco. It is the fourth largest city in the country, after Casablanca, Fes and it is the capital city of the mid-southwestern region of Marrakesh-Safi. Marrakesh is possibly the most important of Moroccos four former imperial cities, the region has been inhabited by Berber farmers since Neolithic times, but the actual city was founded in 1062 by Abu Bakr ibn Umar, chieftain and cousin of Almoravid king Yusuf ibn Tashfin. In the 12th century, the Almoravids built many madrasas and mosques in Marrakesh that bear Andalusian influences. The red walls of the city, built by Ali ibn Yusuf in 1122–1123, Marrakesh grew rapidly and established itself as a cultural, religious, and trading centre for the Maghreb and sub-Saharan Africa, Jemaa el-Fnaa is the busiest square in Africa. After a period of decline, the city was surpassed by Fes, beginning in the 17th century, the city became popular among Sufi pilgrims for Moroccos seven patron saints, who are entombed here. In 2009, Marrakesh mayor Fatima Zahra Mansouri became the woman to be elected mayor in Morocco. Like many Moroccan cities, Marrakesh comprises an old fortified city packed with vendors and their stalls, bordered by modern neighborhoods, today it is one of the busiest cities in Africa and serves as a major economic centre and tourist destination. Tourism is strongly advocated by the reigning Moroccan monarch, Mohammed VI, despite the economic recession, real estate and hotel development in Marrakesh has grown dramatically in the 21st century. Marrakesh is particularly popular with the French, and numerous French celebrities own property in the city, Marrakesh has the largest traditional market in Morocco, with some 18 souks selling wares ranging from traditional Berber carpets to modern consumer electronics. Crafts employ a significant percentage of the population, who sell their products to tourists. Marrakesh is one of North Africa’s largest centres of wildlife trade, much of this trade can be found in the medina and adjacent squares. Tortoises are particularly popular for sale as pets but Barbary macaques and snakes can also be seen, Marrakesh is served by Ménara International Airport and the Marrakesh railway station, which connects the city to Casablanca and northern Morocco. Marrakesh has several universities and schools, including Cadi Ayyad University, a number of Moroccan football clubs are located here, including Najm de Marrakech, KAC Marrakech, Mouloudia de Marrakech and Chez Ali Club de Marrakech. The Marrakesh Street Circuit hosts the World Touring Car Championship, Auto GP, the exact meaning of the name is debated. The probable origin of the name Marrakesh is from the Berber words amur akush, the word mur is used now in Berber mostly in the feminine form tamurt. The common English spelling is Marrakesh, although Marrakech is also widely used, the name is spelled Mṛṛakc in the Berber Latin alphabet, Marraquexe in Portuguese, Marraquech in Spanish, and Mer-reksh in Moroccan Arabic. From medieval times until around the beginning of the 20th century, the name for Morocco is still Marrakesh to this day in Persian and Urdu as well as many other South Asian languages
Marrakech
–
Marrakesh ⵎⵕⵕⴰⴽⵛ Meṛṛakec مراكش Marrakech
Marrakech
–
Gold coin minted during the reign of Ali ibn Yusef
Marrakech
–
El Badi Palace
Marrakech
–
T'hami El Glaoui
17.
Toubkal National Park
–
Toubkal National Park is a national park in the High Atlas mountain range,70 kilometres from Marrakesh in central-western Morocco. Established in 1942, it covers an area of 380 km2, jbel Toubkal is the highest peak of the park at 4,167 metres. In October 2012 Salafists were blamed for destroying an 8, 000-year-old petroglyph within the park that depicted the Sun as a divinity, the park contains the following mountains, Toubkal Ouanoukrim Plateau de Tazarhart LAksoual Ineghmar Bou Iguenouane Le Tichki Azrou Tamadout
Toubkal National Park
–
Toubkal National Park
18.
Sahara
–
The Sahara is the largest hot desert and the third largest desert in the world after Antarctica and the Arctic. Its area of 9,200,000 square kilometres is comparable to the area of the United States. The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south, it is bounded by the Sahel, a belt of tropical savanna around the Niger River valley. The Sahara can be divided into several regions including, the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains, the Ténéré desert, the name Sahara is derived from ṣaḥārā, the plural of the Arabic word for desert. The Sahara covers large parts of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Western Sahara, Sudan and it covers 9 million square kilometres, amounting to 31% of Africa. If all areas with an annual precipitation of less than 250 mm were included. It is one of three physiographic provinces of the African massive physiographic division. The Sahara is mainly rocky hamada, Ergs form only a minor part, wind or rare rainfall shape the desert features, sand dunes, dune fields, sand seas, stone plateaus, gravel plains, dry valleys, dry lakes, and salt flats. Unusual landforms include the Richat Structure in Mauritania, several deeply dissected mountains, 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 volcano in the Tibesti range of northern Chad. The central Sahara is hyperarid, with sparse 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. In the central, hyperarid region, there are subdivisions of the great desert, Tanezrouft, the Ténéré, the Libyan Desert, the Eastern Desert. These extremely arid areas often receive no rain for years, the northern limit also corresponds to the 100 mm isohyet of annual precipitation. To the south, the Sahara is bounded by the Sahel, the southern limit of the Sahara is indicated botanically by the southern limit of Cornulaca monacantha, or northern limit of Cenchrus biflorus, a grass typical of the Sahel. According to climatic criteria, the limit of the Sahara corresponds to the 150 mm isohyet of annual precipitation. The Sahara is the worlds largest low-latitude hot desert and this steady descending airflow causes a warming and a drying effect in the upper troposphere
Sahara
–
A satellite image of the Sahara by
NASA World Wind.
Sahara
–
Tadrart Acacus desert in western
Libya, part of the Sahara.
Sahara
–
The top image shows the Safsaf Oasis on the surface of the Sahara. The bottom (using
radar) is the rock layer underneath, revealing black channels cut by the meandering of an ancient river that once fed the
oasis.
Sahara
–
A geographical map of Africa, showing the ecological break that defines the Saharan area.
19.
Winter sport
–
A winter sport or winter activity is a recreational activity or sport which is played on snow or ice. Most such sports are variations of skiing, ice skating and sledding, traditionally such sports were only played in cold areas during winter, but artificial snow and artificial ice allow more flexibility. Artificial ice can be used to provide ice rinks for ice skating, ice hockey, common individual sports include cross-country skiing, Alpine skiing, snowboarding, ski jumping, speed skating, figure skating, luge, skeleton, bobsleigh and snowmobiling. Common team sports include ice hockey, curling and bandy, based on the number of participants, ice hockey is the worlds most popular winter sport, followed by bandy. Winter sports often have their own tournaments, such as the Winter Olympic Games. Snow and ice during the wintertime has led to other means of transportation, such as sledges, skis and this also led to different pastimes and sports being developed in the winter season as compared to other times of the year. Naturally, winter sports are popular in countries with longer winter seasons. While most winter sports are played outside, ice hockey, speed skating, indoor ice rinks with artificial ice allow ice skating and hockey to be played in hot climates. Note, the Olympic rings next to a sport indicates that particular sport is included in the Winter Olympic Games. The Paralympic logo indicates the same for a sport not in the Olympics but in the Winter Paralympic Games
Winter sport
–
Ski resort
Jasná in Central
Slovakia
Winter sport
–
Skiing
Winter sport
–
United States biathlete
Jeremy Teela at the
2002 Winter Olympics.
Winter sport
–
An East German bobsleigh in 1951,
Oberhof track, Germany
20.
Wadi
–
WADI is a radio station licensed to serve the community of Corinth, Mississippi, USA. The station is owned by Power Valley Communications Inc and it broadcasts a country music format. The station was assigned the WADI call letters by the Federal Communications Commission, Query the FCCs FM station database for WADI Radio-Locator information on WADI Query Nielsen Audios FM station database for WADI
Wadi
21.
Alpine climate
–
Alpine climate is the average weather for the regions above the tree line. This climate is referred to as a mountain climate or highland climate. There are multiple definitions of alpine climate, one simple definition is the climate which causes trees to fail to grow due to cold. According to the Holdridge life zone system, alpine climate occurs when the mean biotemperature of a location is between 1.5 and 3 °C, which prevents tree growth. Biotemperature is defined as the temperature, except all temperatures below 0 °C are treated as 0 °C, in the Köppen climate classification, the alpine climate is part of Group E, along with the polar climate, where no month has a mean temperature higher than 10 °C. The temperature profile of the atmosphere is a result of an interaction between radiation and convection, sunlight in the visible spectrum hits the ground and heats it. The ground then heats the air at the surface, however, when air is hot, it tends to expand, which lowers its density. Thus, hot air tends to rise and transfer heat upward and this is the process of convection. Convection comes to equilibrium when a parcel at air at a given altitude has the density as its surroundings. Air is a conductor of heat, so a parcel of air will rise. This is known as a process, which has a characteristic pressure-temperature curve. As the pressure gets lower, the temperature decreases, the rate of decrease of temperature with elevation is known as the adiabatic lapse rate, which is approximately 9.8 °C per kilometre of altitude. Note that the presence of water in the atmosphere complicates the process of convection, water vapor contains latent heat of vaporization. As air rises and cools, it becomes saturated and cannot hold its quantity of water vapor. The water vapor condenses, and releases heat, which changes the rate from the dry adiabatic lapse rate to the moist adiabatic lapse rate. The actual lapse rate, called the lapse rate, is not constant. Therefore, moving up 100 metres on a mountain is roughly equivalent to moving 80 kilometres towards the pole and this relationship is only approximate, however, since local factors, such as proximity to oceans, can drastically modify the climate. As the altitude increases, the form of precipitation becomes snow
Alpine climate
–
White Mountain, an alpine environment at 4,300 metres (14,000 ft) in
California
22.
Oceanic climate
–
Oceanic climates are defined as having a monthly mean temperature below 22 °C in the warmest month, and above 0 °C in the coldest month. It typically lacks a dry season, as precipitation is evenly dispersed throughout the year. Oceanic climates generally have cool summers and mild to cool winters, Oceanic climates are most dominant in Europe, where they spread much farther inland than in other continents. Oceanic climates can have much storm activity as they are located in the belt of the stormy westerlies, many oceanic climates have frequent cloudy or overcast conditions due to the near constant storms and lows tracking over or near them. Precipitation is both adequate and reliable throughout the year in oceanic climates, extended months of rain and cloudy conditions are common in oceanic climates. Seattle is an example of this, between October and May, Seattle experiences high rainfall and is mostly or partly cloudy six out of every seven days. In most areas with a climate, precipitation comes in the form of rain for the majority of the year. However, some areas with this climate see some snowfall annually during winter, outside of Australia and parts of New Zealand, most areas with an oceanic climate experience at least one snowstorm per year. In the poleward locations of the climate zone, snowfall is more frequent. Overall temperature characteristics of the oceanic climates feature cool temperatures and infrequent extremes of temperature, summers are cool, with the warmest month having a mean temperature below 22 °C. Poleward of the latter is a zone of the subpolar oceanic climate, with long and cold winters and cool. Examples of this climate include parts of coastal Iceland in the Northern Hemisphere and extreme southern Chile, Oceanic climates are not necessarily always found in coastal locations on the aforementioned parallels, however, in most cases oceanic climates parallel higher middle latitude oceans. The polar jet stream, which moves in a west to east direction across the middle latitudes, advancing low pressure systems, storms, in coastal areas of the higher middle latitudes, the prevailing onshore flow creates the basic structure of most oceanic climates. Oceanic climates are a product and reflection of the adjacent to them. In summer, high pressure pushes the prevailing westerlies north of many oceanic climates. As a result of the Gulf Stream, west-coast areas located in high latitudes like Ireland, the UK, Oceanic climates in Europe occur mostly in Northwest Europe, from Ireland and Great Britain eastward to central Europe. Most of France, Germany, Norway, the north coast of Spain, examples of oceanic climates are found in London, Bergen, Dublin, Berlin, Bilbao, Donostia-San Sebastian, Biarritz, Bayonne, Zürich, Copenhagen and Paris. With decreasing distance to the Mediterranean Sea, the climate of Northwest Europe gradually changes to the subtropical dry-summer or Mediterranean climate of southern Europe
Oceanic climate
–
Seattle, a city with an oceanic climate
Oceanic climate
–
World map showing oceanic climate zones, as defined by the
Köppen climate types "Cfb", "Cfc", "Cwb" and "Cwc"
Oceanic climate
–
Curitiba, capital city of Brazilian
Paraná state features a subtropical highland climate
23.
Semi-arid
–
A semi-arid climate or steppe climate is the climate of a region that receives precipitation below potential evapotranspiration, but not extremely. There are different kinds of climates, depending on such variables as temperature. Semi-arid climates tend to short or scrubby vegetation, with semi-arid areas usually dominated by either grasses or shrubs. To determine if a location has a climate, the precipitation threshold must first be determined. If the areas precipitation is less than the threshold but more than half the threshold. Hot semi-arid climates tend to be located in the tropics and subtropics and these climates tend to have hot, sometimes extremely hot, summers and warm to cool winters, with some to minimal precipitation. Hot semi-arid climates are most commonly found around the fringes of subtropical deserts, hot semi-arid climates are most commonly found in Africa, Australia and South Asia. In Australia, a portion of the Outback surrounding the central desert regions lies within the hot semi-arid climate regime. Hot semi-arid climates can also be found in North America, primarily in Mexico, areas of Texas near Mexico, cold semi-arid climates tend to be located in temperate zones or elevated portions in subtropical zones. They are typically found in continental interiors some distance from bodies of water. Cold semi-arid climates usually feature warm and dry summers, though their summers are not quite as hot as those of hot semi-arid climates. Unlike hot semi-arid climates, areas with cold semi-arid climates tend to have cold winters and these areas usually see some snowfall during the winter, though snowfall is much lower than at locations at similar latitudes with more humid climates. These large diurnal temperature variations are seen in hot semi-arid climates. Cold semi-arid climates are most commonly found in Asia and North America, however, they can also be found in Northern Africa, South Africa, Europe, sections of South America and sections of interior southern Australia and New Zealand. As a result of this, some areas can have climates that are classified as hot or cold depending on the isotherm used. One such location is San Diego, California, which has cool summers for the due to prevailing winds off the ocean. Arid Forest Research Institute Continental climate Dust Bowl Goyders Line Pallisers Triangle Köppen climate classification Wave height Ustic
Semi-arid
–
The semi-arid terrain of
Machakos
Semi-arid
–
BSh
Semi-arid
–
Northeast Caatinga - semiárido brasileño
Semi-arid
–
Extreme weather at
Atacama Large Millimeter Array.
24.
Steppe climate
–
A semi-arid climate or steppe climate is the climate of a region that receives precipitation below potential evapotranspiration, but not extremely. There are different kinds of climates, depending on such variables as temperature. Semi-arid climates tend to short or scrubby vegetation, with semi-arid areas usually dominated by either grasses or shrubs. To determine if a location has a climate, the precipitation threshold must first be determined. If the areas precipitation is less than the threshold but more than half the threshold. Hot semi-arid climates tend to be located in the tropics and subtropics and these climates tend to have hot, sometimes extremely hot, summers and warm to cool winters, with some to minimal precipitation. Hot semi-arid climates are most commonly found around the fringes of subtropical deserts, hot semi-arid climates are most commonly found in Africa, Australia and South Asia. In Australia, a portion of the Outback surrounding the central desert regions lies within the hot semi-arid climate regime. Hot semi-arid climates can also be found in North America, primarily in Mexico, areas of Texas near Mexico, cold semi-arid climates tend to be located in temperate zones or elevated portions in subtropical zones. They are typically found in continental interiors some distance from bodies of water. Cold semi-arid climates usually feature warm and dry summers, though their summers are not quite as hot as those of hot semi-arid climates. Unlike hot semi-arid climates, areas with cold semi-arid climates tend to have cold winters and these areas usually see some snowfall during the winter, though snowfall is much lower than at locations at similar latitudes with more humid climates. These large diurnal temperature variations are seen in hot semi-arid climates. Cold semi-arid climates are most commonly found in Asia and North America, however, they can also be found in Northern Africa, South Africa, Europe, sections of South America and sections of interior southern Australia and New Zealand. As a result of this, some areas can have climates that are classified as hot or cold depending on the isotherm used. One such location is San Diego, California, which has cool summers for the due to prevailing winds off the ocean. Arid Forest Research Institute Continental climate Dust Bowl Goyders Line Pallisers Triangle Köppen climate classification Wave height Ustic
Steppe climate
–
The semi-arid terrain of
Machakos
Steppe climate
–
BSh
Steppe climate
–
Northeast Caatinga - semiárido brasileño
Steppe climate
–
Extreme weather at
Atacama Large Millimeter Array.
25.
Rocky Mountains
–
The Rocky Mountains, commonly known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch more than 3,000 miles from the northernmost part of British Columbia, in western Canada, to New Mexico, in the Southwestern United States. Within the North American Cordillera, the Rockies are somewhat distinct from the Pacific Coast Ranges, the Rocky Mountains were initially formed from 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began to slide underneath the North American plate. The angle of subduction was shallow, resulting in a belt of mountains running down western North America. Since then, further tectonic activity and erosion by glaciers have sculpted the Rockies into dramatic peaks, at the end of the last ice age, humans started to inhabit the mountain range. The first mention of their present name by a European was in the journal of Jacques Legardeur de Saint-Pierre in 1752, the Rocky Mountains are commonly defined as stretching from the Liard River in British Columbia south to the Rio Grande in New Mexico. The United States definition of the Rockies includes the Cabinet and Salish Mountains of Idaho and their counterparts north of the Kootenai River, the Columbia Mountains, are considered a separate system in Canada, lying to the west of the huge Rocky Mountain Trench. This runs the length of British Columbia from its beginnings in the middle Flathead River valley in western Montana to the bank of the Liard River. The Rockies vary in width from 70 to 300 miles, also west of the Rocky Mountain Trench, farther north and facing the Muskwa Range across the trench, are the Stikine Ranges and Omineca Mountains of the Interior Mountains system of British Columbia. A small area east of Prince George, British Columbia on the side of the Trench. In Canada geographers define three main groups of ranges, the Continental Ranges, Hart Ranges and Muskwa Ranges, the Muskwa and Hart Ranges together comprise what is known as the Northern Rockies. The western edge of the Rockies includes ranges such as the Wasatch near Salt Lake City, the Great Basin and Columbia River Plateau separate these sub-ranges from distinct ranges further to the west, most prominent among which are the Sierra Nevada, Cascade Range and Coast Mountains. The Rocky Mountain System within the United States is a United States physiographic region, the Rocky Mountains are notable for containing the highest peaks in central North America. The ranges highest peak is Mount Elbert located in Colorado at 14,440 feet above sea level, Mount Robson in British Columbia, at 12,972 feet, is the highest peak in the Canadian Rockies. The Continental Divide of the Americas is located in the Rocky Mountains, triple Divide Peak in Glacier National Park is so named because water that falls on the mountain reaches not only the Atlantic and Pacific, but Hudson Bay as well. Farther north in Alberta, the Athabasca and other rivers feed the basin of the Mackenzie River, see Rivers of the Rocky Mountains for a list of rivers. Human population is not very dense in the Rocky Mountains, with an average of four people per square kilometer, however, the human population grew rapidly in the Rocky Mountain states between 1950 and 1990. The 40-year statewide increases in range from 35% in Montana to about 150% in Utah
Rocky Mountains
–
Moraine Lake, and the
Valley of the Ten Peaks,
Banff National Park,
Alberta,
Canada
Rocky Mountains
–
The Front Range of the Rocky Mountains near
Denver, Colorado
Rocky Mountains
–
The
Tetons are a rugged subrange in Wyoming
Rocky Mountains
–
Mount Robson in
British Columbia.
26.
United States
–
Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
United States
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Native Americans meeting with Europeans, 1764
United States
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Flag
United States
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The signing of the
Mayflower Compact, 1620.
United States
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The
Declaration of Independence: the
Committee of Five presenting their draft to the
Second Continental Congress in 1776
27.
Jurassic
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The Jurassic is a geologic period and system that spans 56.3 million years from the end of the Triassic Period 201.3 million years ago to the beginning of the Cretaceous Period 145 Mya. The Jurassic constitutes the middle period of the Mesozoic Era, also known as the Age of Reptiles, the start of the period is marked by the major Triassic–Jurassic extinction event. The Jurassic is named after the Jura Mountains within the European Alps, by the beginning of the Jurassic, the supercontinent Pangaea had begun rifting into two landmasses, Laurasia to the north and Gondwana to the south. This created more coastlines and shifted the continental climate from dry to humid, on land, the fauna transitioned from the Triassic fauna, dominated by both dinosauromorph and crocodylomorph archosaurs, to one dominated by dinosaurs alone. The first birds also appeared during the Jurassic, having evolved from a branch of theropod dinosaurs, other major events include the appearance of the earliest lizards, and the evolution of therian mammals, including primitive placentals. Crocodilians made the transition from a terrestrial to a mode of life. The oceans were inhabited by marine reptiles such as ichthyosaurs and plesiosaurs, the chronostratigraphic term Jurassic is directly linked to the Jura Mountains. The name Jura is derived from the Celtic root jor, which was Latinised into juria, the Jurassic period is divided into the Early Jurassic, Middle, and Late Jurassic epochs. The Jurassic System, in stratigraphy, is divided into the Lower Jurassic, Middle, the separation of the term Jurassic into three sections goes back to Leopold von Buch. The Jurassic North Atlantic Ocean was relatively narrow, while the South Atlantic did not open until the following Cretaceous period, the Tethys Sea closed, and the Neotethys basin appeared. Climates were warm, with no evidence of glaciation, as in the Triassic, there was apparently no land over either pole, and no extensive ice caps existed. In contrast, the North American Jurassic record is the poorest of the Mesozoic, the Jurassic was a time of calcite sea geochemistry in which low-magnesium calcite was the primary inorganic marine precipitate of calcium carbonate. Carbonate hardgrounds were thus very common, along with calcitic ooids, calcitic cements, the first of several massive batholiths were emplaced in the northern American cordillera beginning in the mid-Jurassic, marking the Nevadan orogeny. Important Jurassic exposures are found in Russia, India, South America, Japan, Australasia. As the Jurassic proceeded, larger and more groups of dinosaurs like sauropods and ornithopods proliferated in Africa. Middle Jurassic strata are well represented nor well studied in Africa. Late Jurassic strata are also poorly represented apart from the spectacular Tendaguru fauna in Tanzania, the Late Jurassic life of Tendaguru is very similar to that found in western North Americas Morrison Formation. During the Jurassic period, the primary living in the sea were fish
Jurassic
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Various
dinosaurs roamed forests of similarly large
conifers during the Jurassic period.
Jurassic
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Jurassic limestones and marls (the
Matmor Formation) in southern
Israel.
Jurassic
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The late Jurassic
Morrison Formation in
Colorado is one of the most fertile sources of dinosaur fossils in North America.
Jurassic
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Gigandipus, a
dinosaur footprint in the Lower Jurassic
Moenave Formation at the St. George Dinosaur Discovery Site at Johnson Farm, southwestern
Utah.
28.
Cretaceous
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The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period 145 million years ago to the beginning of the Paleogene Period 66 Mya. It is the last period of the Mesozoic Era, the Cretaceous Period is usually abbreviated K, for its German translation Kreide. The Cretaceous was a period with a warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites and rudists, during this time, new groups of mammals and birds, as well as flowering plants, appeared. The Cretaceous ended with a mass extinction, the Cretaceous–Paleogene extinction event, in which many groups, including non-avian dinosaurs, pterosaurs. The end of the Cretaceous is defined by the abrupt Cretaceous–Paleogene boundary, the name Cretaceous was derived from Latin creta, meaning chalk. The Cretaceous is divided into Early and Late Cretaceous epochs, or Lower and Upper Cretaceous series, in older literature the Cretaceous is sometimes divided into three series, Neocomian, Gallic and Senonian. A subdivision in eleven stages, all originating from European stratigraphy, is now used worldwide, in many parts of the world, alternative local subdivisions are still in use. As with other geologic periods, the rock beds of the Cretaceous are well identified. No great extinction or burst of diversity separates the Cretaceous from the Jurassic and this layer has been dated at 66.043 Ma. A140 Ma age for the Jurassic-Cretaceous boundary instead of the usually accepted 145 Ma was proposed in 2014 based on a study of Vaca Muerta Formation in Neuquén Basin. Víctor Ramos, one of the authors of the study proposing the 140 Ma boundary age sees the study as a first step toward formally changing the age in the International Union of Geological Sciences, due to the high sea level there was extensive space for such sedimentation. Because of the young age and great thickness of the system. Chalk is a type characteristic for the Cretaceous. It consists of coccoliths, microscopically small calcite skeletons of coccolithophores, the group is found in England, northern France, the low countries, northern Germany, Denmark and in the subsurface of the southern part of the North Sea. Chalk is not easily consolidated and the Chalk Group still consists of sediments in many places. The group also has other limestones and arenites, among the fossils it contains are sea urchins, belemnites, ammonites and sea reptiles such as Mosasaurus. In southern Europe, the Cretaceous is usually a marine system consisting of competent limestone beds or incompetent marls
Cretaceous
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Drawing of fossil jaws of
Mosasaurus hoffmanni, from the
Maastrichtian of
Dutch Limburg, by Dutch geologist
Pieter Harting (1866).
Cretaceous
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Although the first representatives of leafy trees and true grasses emerged in the Cretaceous, the flora was still dominated by conifers like
Araucaria (Here: Modern Araucaria araucana in Chile).
Cretaceous
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Tyrannosaurus rex, one of the largest land predators of all time, lived during the late Cretaceous.
Cretaceous
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Up to 2 m-long
Velociraptor was likely feathered and roamed the late Cretaceous.
29.
Ourika Valley
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Ourika River is a river in Morocco, at 31. 4°N7. 783333°W /31.4, -7.783333. It rises in the High Atlas and flows through the Ourika Valley,30 km from Marrakech, a number of interesting plants have been recorded in this valley beginning in the late 19th century including Fraxinus dimorpha. Ourika Valley, due to its many waterfalls and several attractions, is a very popular Ourika day trip from Marrakech, the region is inhabited by Berber people who practice a traditional way of life. Despite its proximity to Marrakech, it is considered relatively unspoiled. Joseph Dalton Hooker, John Ball and George Maw, journal of a Tour in Marocco and the Great Atlas
Ourika Valley
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Ourika River, in the Ourika Valley, Morocco
Ourika Valley
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Salt production in Ourika Valley
Ourika Valley
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Ourika river itself
Ourika Valley
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Drying carpets at a Berber village factory in Ourika Valley.
30.
Endangered
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An endangered species is a species which has been categorized as likely to become extinct. In 2012, the IUCN Red List featured 3079 animal and 2655 plant species as endangered worldwide, the figures for 1998 were, respectively,1102 and 1197. Many nations have laws that protect conservation-reliant species, for example, population numbers, trends and species conservation status can be found in the lists of organisms by population. The conservation status of a species indicates the likelihood that it will become extinct, the IUCN Red List of Threatened Species is the best-known worldwide conservation status listing and ranking system. Over 40% of the species are estimated to be at risk of extinction. Internationally,199 countries have signed an accord to create Biodiversity Action Plans that will protect endangered, in the United States, such plans are usually called Species Recovery Plans. Those species of Near Threatened and Least Concern status have been assessed and found to have relatively robust and healthy populations, though these may be in decline. The IUCN categories, with examples of animals classified by them, include, Extinct Extinct in the wild Captive individuals survive, critically endangered Faces an extremely high risk of extinction in the immediate future. Endangered Faces a high risk of extinction in the near future, vulnerable Faces a high risk of endangerment in the medium term. Near-threatened May be considered threatened in the near future, Least concern No immediate threat to species survival. A population size reduction of ≥ 50%, projected or suspected to be met within the next 10 years or three generations, whichever is the longer, based on any of to under A1. E) Quantitative analysis showing the probability of extinction in the wild is at least 20% within 20 years or five generations, there is data from the United States that shows a correlation between human populations and threatened and endangered species. Under the Endangered Species Act in the United States, species may be listed as endangered or threatened, the Salt Creek tiger beetle is an example of an endangered subspecies protected under the ESA. Some endangered species laws are controversial, also lobbying from hunters and various industries like the petroleum industry, construction industry, and logging, has been an obstacle in establishing endangered species laws. The Bush administration lifted a policy that required federal officials to consult an expert before taking actions that could damage endangered species. Under the Obama administration, this policy has been reinstated, being listed as an endangered species can have negative effect since it could make a species more desirable for collectors and poachers. This effect is potentially reducible, such as in China where commercially farmed turtles may be reducing some of the pressure to poach endangered species. Another problem with the species is its effect of inciting the use of the shoot, shovel
Endangered
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by
IUCN Red List category
Endangered
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The
Siberian tiger is an Endangered (EN)
tiger subspecies. Three tiger subspecies are already extinct (see
List of carnivorans by population).
Endangered
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Blue-throated macaw, an endangered species
Endangered
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Brown spider monkey, an endangered species
High Atlas travel guide from Wikivoyage
