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108-779: The plateau occupies a great part of central Siberia between the Yenisei and Lena rivers. It is located in the Siberian Platform and extends over an area of 3,500,000 km (1,400,000 sq mi), between the Yenisei in the west and the Central Yakutian Lowland in the east. To the south it is bound by the Altai Mountains , Salair Ridge , Kuznetsk Alatau , the Eastern and Western Sayan Mountains and other mountains of Tuva , as well as

216-747: A number of continental shelves , including the Canadian Arctic shelf, underlying the Canadian Arctic Archipelago , and the Russian continental shelf , which is sometimes called the "Arctic Shelf" because it is larger. The Russian continental shelf consists of three separate, smaller shelves: the Barents Shelf, Chukchi Sea Shelf and Siberian Shelf . Of these three, the Siberian Shelf is the largest such shelf in

324-460: A part of the sovereign territory of Russia and its predecessor states since the centuries-long conquest of Siberia , which began with the fall of the Khanate of Sibir in the late 16th century and concluded with the annexation of Chukotka in 1778. Siberia is vast and sparsely populated, covering an area of over 13.1 million square kilometres (5,100,000 sq mi), but home to roughly

432-587: A quarter of Russia's population. Novosibirsk , Krasnoyarsk , and Omsk are the largest cities in the area. Because Siberia is a geographic and historic concept and not a political entity, there is no single precise definition of its territorial borders. Traditionally, Siberia spans the entire expanse of land from the Ural Mountains to the Pacific Ocean , with the Ural River usually forming

540-707: A region extending eastward from the Ural Mountains to the watershed between Pacific and Arctic drainage basins, and southward from the Arctic Ocean to the hills of north-central Kazakhstan and the national borders of both Mongolia and China. By this definition, Siberia includes the federal subjects of the Siberian Federal District , and some of the Ural Federal District , as well as Sakha (Yakutia) Republic , which

648-716: Is Molloy Hole in the Fram Strait , at about 5,550 m (18,210 ft). The two major basins are further subdivided by ridges into the Canada Basin (between Beaufort Shelf of North America and the Alpha Ridge ), Makarov Basin (between the Alpha and Lomonosov Ridges), Amundsen Basin (between Lomonosov and Gakkel ridges), and Nansen Basin (between the Gakkel Ridge and the continental shelf that includes

756-403: Is a stub . You can help Misplaced Pages by expanding it . Siberia Siberia ( / s aɪ ˈ b ɪər i ə / sy- BEER -ee-ə ; Russian : Сибирь , romanized :  Sibir' , IPA: [sʲɪˈbʲirʲ] ) is an extensive geographical region comprising all of North Asia , from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed

864-505: Is a part of the Far Eastern Federal District . Geographically, this definition includes subdivisions of several other subjects of Urals and Far Eastern federal districts, but they are not included administratively. This definition excludes Sverdlovsk Oblast and Chelyabinsk Oblast , both of which are included in some wider definitions of Siberia. Other sources may use either a somewhat wider definition that states

972-414: Is a section referred to as the sub-surface layer. It is a product of Atlantic water that enters through canyons and is subjected to intense mixing on the Siberian Shelf. As it is entrained, it cools and acts a heat shield for the surface layer on account of weak mixing between layers. However, over the past couple of decades a combination of the warming and the shoaling of Atlantic water are leading to

1080-424: Is about 0.5 °C (32.9 °F). January averages about −20 °C (−4 °F) and July about +19 °C (66 °F), while daytime temperatures in summer typically exceed 20 °C (68 °F). With a reliable growing season, an abundance of sunshine and exceedingly fertile chernozem soils, southern Siberia is good enough for profitable agriculture , as was demonstrated in the early 20th century. By far

1188-416: Is cloudy year-round, with mean cloud cover ranging from 60% in winter to over 80% in summer. The temperature of the surface water of the Arctic Ocean is fairly constant at approximately −1.8 °C (28.8 °F), near the freezing point of seawater . The density of sea water, in contrast to fresh water, increases as it nears the freezing point and thus it tends to sink. It is generally necessary that

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1296-565: Is contained in a polar climate characterized by persistent cold and relatively narrow annual temperature ranges. Winters are characterized by the polar night , extreme cold, frequent low-level temperature inversions, and stable weather conditions. Cyclones are only common on the Atlantic side. Summers are characterized by continuous daylight ( midnight sun ), and air temperatures can rise slightly above 0 °C (32 °F). Cyclones are more frequent in summer and may bring rain or snow. It

1404-655: Is culturally and politically considered European, since it is a part of Russia. Major geographical zones within Siberia include the West Siberian Plain and the Central Siberian Plateau . Eastern and central Sakha comprises numerous north–south mountain ranges of various ages. These mountains extend up to almost 3,000 metres (9,800 ft), but above a few hundred metres they are almost completely devoid of vegetation. The Verkhoyansk Range

1512-530: Is doubtful that the total early modern Siberian population exceeded 300,000 persons". The first mention of Siberia in chronicles is recorded in the year 1032. The city-state of Novgorod established two trade routes to the Ob River , and laid claim to the lands the Russians called Yugra . The Russians were attracted by its furs in particular. Novgorod launched military campaigns to extract tribute from

1620-425: Is high also in most of Primorye in the extreme south, where monsoonal influences can produce quite heavy summer rainfall. Researchers, including Sergei Kirpotin at Tomsk State University and Judith Marquand at Oxford University , warn that Western Siberia has begun to thaw as a result of global warming . The frozen peat bogs in this region may hold billions of tons of methane gas , which may be released into

1728-667: Is no longer visible. The Central Siberian Plateau is an ancient craton (sometimes named Angaraland ) that formed an independent continent before the Permian (see the Siberian continent ). It is exceptionally rich in minerals, containing large deposits of gold , diamonds , and ores of manganese , lead , zinc , nickel , cobalt , and molybdenum . Much of the area includes the Siberian Traps —a large igneous province . A massive eruptive period approximately coincided with

1836-677: Is predominantly cyclonic on the Eurasian side and anticyclonic in the Canadian Basin . Water enters from both the Pacific and Atlantic Oceans and can be divided into three unique water masses. The deepest water mass is called Arctic Bottom Water and begins around 900 m (3,000 ft) depth. It is composed of the densest water in the World Ocean and has two main sources: Arctic shelf water and Greenland Sea Deep Water. Water in

1944-603: Is several degrees warmer than in the East ( Irkutsk , or Chita ) where in the north an extreme winter subarctic climate (Köppen Dfd , Dwd , or Dsd ) prevails. But summer temperatures in other regions can reach +38 °C (100 °F). In general, Sakha is the coldest Siberian region, and the basin of the Yana has the lowest temperatures of all, with permafrost reaching 1,493 metres (4,898 ft). Nevertheless, Imperial Russian plans of settlement never viewed cold as an impediment. In

2052-473: Is the active volcano Klyuchevskaya Sopka , on the Kamchatka Peninsula . Its peak reaches 4,750 metres (15,580 ft). The West Siberian Plain, consisting mostly of Cenozoic alluvial deposits, is somewhat flat. In the mid-Pleistocene, many deposits on this plain resulted from ice dams which produced a large glacial lake . This mid- to late- Pleistocene lake blocked the northward flow of

2160-626: Is the city of Novosibirsk . Present-day Novosibirsk is an important business, science, manufacturing and cultural center of the Asian part of Russia. Omsk played an important role in the Russian Civil War serving as a provisional Russian capital, as well in the expansion into and governing of Central Asia . In addition to its cultural status, it has become a major oil-refining, education, transport and agriculture hub. Other historic cities of Siberia include Tobolsk (the first capital and

2268-495: Is the highest volumetric inflow to the Arctic Ocean, equalling about 10 times that of the Pacific inflow, and it creates the Arctic Ocean Boundary Current. It flows slowly, at about 0.02 m/s. Atlantic Water has the same salinity as Arctic Bottom Water but is much warmer (up to 3 °C [37 °F]). In fact, this water mass is actually warmer than the surface water and remains submerged only due to

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2376-623: The Ainu people ). Evidence from full genomic studies suggests that the first people in the Americas diverged from Ancient East Asians about 36,000 years ago and expanded northwards into Siberia, where they encountered and interacted with Ancient North Eurasians, giving rise to both Paleosiberian peoples and Ancient Native Americans , which later migrated towards the Beringian region, became isolated from other populations, and subsequently populated

2484-687: The Arctic Mediterranean Sea . It has also been described as an estuary of the Atlantic Ocean . It is also seen as the northernmost part of the all-encompassing world ocean . The Arctic Ocean includes the North Pole region in the middle of the Northern Hemisphere and extends south to about 60°N . The Arctic Ocean is surrounded by Eurasia and North America, and the borders follow topographic features:

2592-744: The Bering Strait on the Pacific side and the Greenland Scotland Ridge on the Atlantic side. It is mostly covered by sea ice throughout the year and almost completely in winter . The Arctic Ocean's surface temperature and salinity vary seasonally as the ice cover melts and freezes; its salinity is the lowest on average of the five major oceans, due to low evaporation , heavy fresh water inflow from rivers and streams, and limited connection and outflow to surrounding oceanic waters with higher salinities. The summer shrinking of

2700-608: The Cretaceous period, the Canadian Basin opened, and tectonic activity due to the assembly of Alaska caused hydrocarbons to migrate toward what is now Prudhoe Bay. At the same time, sediments shed off the rising Canadian Rockies built out the large Mackenzie Delta. The rifting apart of the supercontinent Pangea , beginning in the Triassic period, opened the early Atlantic Ocean. Rifting then extended northward, opening

2808-614: The Eurasian Basin , which is 4,000–4,500 m (13,100–14,800 ft) deep, and the Amerasian Basin (sometimes called the North American or Hyperborean Basin), which is about 4,000 m (13,000 ft) deep. The bathymetry of the ocean bottom is marked by fault block ridges, abyssal plains , ocean deeps , and basins. The average depth of the Arctic Ocean is 1,038 m (3,406 ft). The deepest point

2916-655: The Franz Josef Land ). The crystalline basement rocks of mountains around the Arctic Ocean were recrystallized or formed during the Ellesmerian orogeny, the regional phase of the larger Caledonian orogeny in the Paleozoic Era. Regional subsidence in the Jurassic and Triassic periods led to significant sediment deposition, creating many of the reservoirs for current day oil and gas deposits. During

3024-584: The Independence I and Independence II cultures of northeastern Canada and Greenland ( c.  2400–1800 BC and c.  800–1 BC ); and the Groswater of Labrador and Nunavik . The Dorset culture spread across Arctic North America between 500 BC and AD 1500. The Dorset were the last major Paleo-Eskimo culture in the Arctic before the migration east from present-day Alaska of

3132-676: The Late Carboniferous through Jurassic Verkhoyansk foldbelt , on the northwest by the Paleozoic Taymr foldbelt, and on the southeast, south and southwest by the Middle Silurian to Middle Devonian Baykalian foldbelt. A regional geologic reconnaissance study begun in 1932 and followed by surface and subsurface mapping revealed the Markova-Angara Arch ( anticline ). This led to the discovery of

3240-716: The North Baikal Highlands and Baikal Mountains . To the north of the plateau lie the North Siberian Lowland and to the east the plateau gives way to the Central Yakutian Lowland and the Lena Plateau . The surface of the Central Siberian Plateau is characterized by the alternation of wide plateaus and ridges, some of the latter sharply jagged. The Central Siberian Plateau covers one-third of Siberia. The system of

3348-670: The Northwest Passage , to " Cathay " ( China ) caused water to win out, and by 1723 mapmakers such as Johann Homann featured an extensive "Oceanus Septentrionalis" at the northern edge of their charts. The few expeditions to penetrate much beyond the Arctic Circle in that era added only small islands, such as Novaya Zemlya (11th century) and Spitzbergen (1596), though, since these were often surrounded by pack-ice , their northern limits were not so clear. The makers of navigational charts , more conservative than some of

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3456-636: The Ob and Yenisey rivers, resulting in a redirection southwest into the Caspian and Aral seas via the Turgai Valley . The area is very swampy, and soils are mostly peaty histosols and, in the treeless northern part, histels . In the south of the plain, where permafrost is largely absent, rich grasslands that are an extension of the Kazakh Steppe formed the original vegetation, most of which

3564-495: The Omsk Refinery . Arctic Ocean Main five oceans division: Further subdivision: The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions . It spans an area of approximately 14,060,000 km (5,430,000 sq mi) and is the coldest of the world's oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it

3672-573: The Permian–Triassic extinction event . The volcanic event is one of the largest known volcanic eruptions in Earth's history . Only the extreme northwest was glaciated during the Quaternary , but almost all is under exceptionally deep permafrost, and the only tree that can thrive, despite the warm summers, is the deciduous Siberian Larch ( Larix sibirica ) with its very shallow roots. Outside

3780-684: The Soviet Union (especially in the 1930s and 1940s), the government used the Gulag state agency to administer a system of penal labour camps , replacing the previous katorga system. According to semi-official Soviet estimates, which did not become public until after the fall of the Soviet government in 1991, from 1929 to 1953 more than 14 million people passed through these camps and prisons, many of them in Siberia. Another seven to eight million people were internally deported to remote areas of

3888-593: The Taymyr Peninsula are believed to have been the last places on Earth to support woolly mammoths as isolated populations until their extinction around 2000 BC. At least three species of humans lived in southern Siberia around 40,000 years ago: H. sapiens , H. neanderthalensis , and the Denisovans . In 2010, DNA evidence identified the last as a separate species. Late Paleolithic southern Siberians appear to be related to Paleolithic Europeans and

3996-643: The Thule people , ancestors of the modern Inuit . The Thule Tradition lasted from about 200 BC to AD 1600, arising around the Bering Strait and later encompassing almost the entire Arctic region of North America. The Thule people were the ancestors of the Inuit, who now live in Alaska, Northwest Territories , Nunavut , Nunavik (northern Quebec), Labrador and Greenland. For much of European history ,

4104-631: The Urals , which had been known of since the 11th century or earlier, while the name Siberia is first mentioned in Russian chronicles at the start of the 15th century in connection with the death of the khan Tokhtamysh , in "the Siberian land". Some sources say that "Siberia" originates from the Siberian Tatar word for 'sleeping land' ( Sib-ir ). A different hypothesis claims that the region

4212-526: The Yakuts , Tuvans , Altai , and Khakas , are Indigenous —along with the Mongolic Buryats , ethnic Koreans , and smaller groups of Samoyedic and Tungusic peoples (several of whom are classified as Indigenous small-numbered peoples by the Russian government), among many others. The origin of the name is uncertain. The Russian name Yugra was applied to the northern lands east of

4320-426: The 16th century has led to perceptions of the region as culturally and ethnically European. Over 85% of its population are of European descent , chiefly Russian (comprising the Siberian sub-ethnic group), and Eastern Slavic cultural influences predominate throughout the region. Nevertheless, there exist sizable ethnic minorities of Asian lineage, including various Turkic communities—many of which, such as

4428-843: The Americas. During past millennia, different groups of nomads – such as the Enets , the Nenets , the Huns , the Xiongnu , the Scythians , and the Yugur – inhabited various parts of Siberia. The Afanasievo and Tashtyk cultures of the Yenisey valley and Altay Mountains are associated with the Indo-European migrations across Eurasia. The proto-Mongol Khitan people also occupied parts of

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4536-412: The Arctic Ocean as mafic oceanic crust material erupted out of a branch of Mid-Atlantic Ridge. The Amerasia Basin may have opened first, with the Chukchi Borderland moved along to the northeast by transform faults. Additional spreading helped to create the "triple-junction" of the Alpha-Mendeleev Ridge in the Late Cretaceous epoch . Throughout the Cenozoic Era, the subduction of the Pacific plate,

4644-427: The Arctic Ocean has a uniquely complex system of water flow. It resembles some hydrological features of the Mediterranean Sea , referring to its deep waters having only limited communication through the Fram Strait with the Atlantic Basin , "where the circulation is dominated by thermohaline forcing". The Arctic Ocean has a total volume of 18.07 × 10 km , equal to about 1.3% of the World Ocean. Mean surface circulation

4752-403: The Arctic Ocean. Much of the Arctic ice pack is also covered in snow for about 10 months of the year. The maximum snow cover is in March or April—about 20–50 cm (7.9–19.7 in) over the frozen ocean. The climate of the Arctic region has varied significantly during the Earth's history. During the Paleocene–Eocene Thermal Maximum 55 million years ago, when the global climate underwent

4860-402: The Arctic Ocean: Different authorities put various marginal seas in either the Arctic Ocean or the Atlantic Ocean, including: Hudson Bay , Baffin Bay , the Norwegian Sea , and Hudson Strait . The main islands and archipelagos in the Arctic Ocean are, from the prime meridian west: There are several ports and harbours on the Arctic Ocean. The ocean's Arctic shelf comprises

4968-408: The Canadian Archipelago. As noted, the process of ice formation and movement is a key driver in Arctic Ocean circulation and the formation of water masses. With this dependence, the Arctic Ocean experiences variations due to seasonal changes in sea ice cover. Sea ice movement is the result of wind forcing, which is related to a number of meteorological conditions that the Arctic experiences throughout

5076-575: The Central Siberian Plateau comprises a number of smaller plateaus and subranges, including, among others, the following: The climate is continental with short warm summers and long and severely cold winters. Most of the territory is covered with conifer forests ( larch is especially abundant). The plateau's major river is the Lower Tunguska . Known geologically as the Siberian Traps , mineral resources here are very rich and include coal , iron ore , gold , platinum , diamonds and natural gas . This Siberian Federal District location article

5184-408: The European region of the Arctic Ocean was heavily contested : the Allied commitment to resupply the Soviet Union via its northern ports was opposed by German naval and air forces. Since 1954 commercial airlines have flown over the Arctic Ocean (see Polar route ). The Arctic Ocean occupies a roughly circular basin and covers an area of about 14,056,000 km (5,427,000 sq mi), almost

5292-410: The Fram Strait is what allows for both inflow and outflow on the Atlantic side of the Arctic Ocean. Because of this, it is influenced by the Coriolis force , which concentrates outflow to the East Greenland Current on the western side and inflow to the Norwegian Current on the eastern side. Pacific water also exits along the west coast of Greenland and the Hudson Strait (1–2 Sv), providing nutrients to

5400-419: The Lomonosov Ridge, which appears to be continental crust separated from the Barents-Kara Shelf in the Paleocene and then starved of sediment. It may contain up to 10 billion barrels of oil. The Gakkel Ridge rift is also poorly understand and may extend into the Laptev Sea. In large parts of the Arctic Ocean, the top layer (about 50 m [160 ft]) is of lower salinity and lower temperature than

5508-626: The Markovo Oil Field in 1962 with the Markovo—1 well, which produced from the Early Cambrian Osa Horizon bar - sandstone at a depth of 2,156 metres (7,073 ft). The Sredne-Botuobin Gas Field was discovered in 1970, producing from the Osa and the Proterozoic Parfenovo Horizon. The Yaraktin Oil Field was discovered in 1971, producing from the Vendian Yaraktin Horizon at depths of up to 1,750 metres (5,740 ft), which lies below Permian to Lower Jurassic basalt traps . The climate of Siberia varies dramatically, but it typically has warm but short summers and long, brutally cold winters. On

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5616-444: The North American polar region goes back at least 17,000–50,000 years, during the Wisconsin glaciation . At this time, falling sea levels allowed people to move across the Bering land bridge that joined Siberia to northwestern North America (Alaska), leading to the Settlement of the Americas . Early Paleo-Eskimo groups included the Pre-Dorset ( c.  3200–850 BC ); the Saqqaq culture of Greenland (2500–800 BC);

5724-534: The North-East Camps ) along the Kolyma and Norillag near Norilsk , where 69,000 prisoners lived in 1952. Major industrial cities of Northern Siberia, such as Norilsk and Magadan , developed from camps built by prisoners and run by former prisoners. Siberia spans an area of 13.1 million square kilometres (5,100,000 sq mi), covering the vast majority of Russia's total territory, and almost 9% of Earth's land surface (148,940,000 km , 57,510,000 sq mi). It geographically falls in Asia, but

5832-423: The Pacific coast, not the watershed, is the eastern boundary (thus including the whole Russian Far East), as well as all Northern Kazakhstan is its subregion in the south-west or a somewhat narrower one that limits Siberia to the Siberian Federal District (thus excluding all subjects of other districts). In Russian, 'Siberia' is commonly used as a substitute for the name of the federal district by those who live in

5940-444: The Russian Far East, and even Petropavlovsk in Kazakhstan and Harbin in China. Novosibirsk is the largest by population and the most important city for the Siberian economy; with an extra boost since 2000 when it was designated a regional center for the executive bureaucracy ( Siberian Federal District ). Omsk is a historic and currently the second largest city in the region, and since 1950s hosting Russia's largest oil refinery,

6048-400: The Siberian Khanate in the 16th century. First, groups of traders and Cossacks began to enter the area. The Russian army was directed to establish forts farther and farther east to protect new Russian settlers who migrated from Europe. Towns such as Mangazeya , Tara , Yeniseysk , and Tobolsk developed, the last becoming the de facto capital of Siberia from 1590. At this time, Sibir was

6156-462: The Soviet Union (including entire nationalities or ethnicities in several cases). Half a million (516,841) prisoners died in camps from 1941 to 1943 during World War II . At other periods, mortality was comparatively lower. The size, scope, and scale of the Gulag slave-labour camps remain subjects of much research and debate. Many Gulag camps operated in extremely remote areas of northeastern Siberia. The best-known clusters included Sevvostlag (

6264-499: The ages. Historically, Siberia was defined as the whole part of Russia and North Kazakhstan to the east of Ural Mountains , including the Russian Far East . According to this definition, Siberia extended eastward from the Ural Mountains to the Pacific coast, and southward from the Arctic Ocean to the border of Central Asia and the national borders of both Mongolia and China. Soviet-era sources ( Great Soviet Encyclopedia and others) and modern Russian ones usually define Siberia as

6372-407: The area between the Laptev Sea and East Siberian Sea . Since 1988, experimentation at Pleistocene Park has proposed to restore the grasslands of prehistoric times by conducting research on the effects of large herbivores on permafrost, suggesting that animals, rather than climate, maintained the past ecosystem. The nature reserve park also conducts climatic research on the changes expected from

6480-413: The atmosphere. Methane is a greenhouse gas 22 times more powerful than carbon dioxide . In 2008 a research expedition for the American Geophysical Union detected levels of methane up to 100 times above normal in the atmosphere above the Siberian Arctic , likely the result of methane clathrates being released through holes in a frozen "lid" of seabed permafrost around the outfall of the Lena and

6588-608: The average winter value of 15,600,000 km (6,023,200 sq mi). The seasonal variations are about 7,000,000 km (2,702,700 sq mi), with the maximum in April and minimum in September. The sea ice is affected by wind and ocean currents, which can move and rotate very large areas of ice. Zones of compression also arise, where the ice piles up to form pack ice. Icebergs occasionally break away from northern Ellesmere Island , and icebergs are formed from glaciers in western Greenland and extreme northeastern Canada. Icebergs are not sea ice but may become embedded in

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6696-456: The central one is officially referred to as " Siberian "; the other two are the Ural and Far Eastern federal districts, named for the Ural and Russian Far East regions that correspond respectively to the western and eastern thirds of Siberia in the broader sense. Siberia is known for its long, harsh winters, with a January average of −25 °C (−13 °F). Although it is geographically in Asia, Russian sovereignty and colonization since

6804-458: The coldest inhabited point in the Northern hemisphere. Each town also frequently reaches 30 °C (86 °F) in the summer, giving them, and much of the rest of Russian Siberia, the world's greatest temperature variation between summer's highs and winter's lows, often well over 94–100+ °C (169–180+ °F) between the seasons. Southwesterly winds bring warm air from Central Asia and the Middle East. The climate in West Siberia (Omsk, or Novosibirsk)

6912-441: The collision of India with Eurasia, and the continued opening of the North Atlantic created new hydrocarbon traps. The seafloor began spreading from the Gakkel Ridge in the Paleocene Epoch and the Eocene Epoch, causing the Lomonosov Ridge to move farther from land and subside. Because of sea ice and remote conditions, the geology of the Arctic Ocean is still poorly explored. The Arctic Coring Expedition drilling shed some light on

7020-491: The continent of Siberia/Angaraland , which fused to Euramerica during the Late Carboniferous , as part of the formation of Pangea . The Siberian Traps were formed by one of the largest-known volcanic events of the last 251 million years of Earth's geological history . Their activity continued for a million years and some scientists consider it a possible cause of the " Great Dying " about 250 million years ago, – estimated to have killed 90% of species existing at

7128-415: The definition of the territory of Siberia a potentially controversial subject. In the eastern extent of Siberia there are territories which are not clearly defined as either Siberia or the Far East , making the question of "what is Siberia?" one with no clear answer, and what is a "Siberian", one of self-identification . The most populous city of Siberia, as well as the third most populous city of Russia,

7236-403: The district itself, but less commonly used to denote the federal district by people residing outside of it. Due to the different interpretations of Siberia, starting from Tyumen , to Chita , the territory generally defined as 'Siberia', some people will define themselves as 'Siberian', while others not. A number of factors in recent years, including the fomenting of Siberian separatism have made

7344-437: The explorers who travelled closer and closer to the pole reported, the polar ice cap is quite thick and persists year-round. Fridtjof Nansen was the first to make a nautical crossing of the Arctic Ocean, in the Fram Expedition from 1893 to 1896. The first surface crossing of the ocean was led by Wally Herbert in 1969, in a dog sled expedition from Alaska to Svalbard , with air support. The first nautical transit of

7452-413: The extreme northwest, the taiga is dominant, covering a significant fraction of the entirety of Siberia. Soils here are mainly turbels , giving way to spodosols where the active layer becomes thicker and the ice-content lower. The Lena-Tunguska petroleum province includes the Central Siberian platform (some authors refer to it as the "Eastern Siberian platform"), bounded on the northeast and east by

7560-440: The formation of Atlantic Deep Water. The overturning of this water plays a key role in global circulation and the moderation of climate. In the depth range of 150–900 m (490–2,950 ft) is a water mass referred to as Atlantic Water. Inflow from the North Atlantic Current enters through the Fram Strait, cooling and sinking to form the deepest layer of the halocline, where it circles the Arctic Basin counter-clockwise. This

7668-456: The ice has been quoted at 50%. The US National Snow and Ice Data Center (NSIDC) uses satellite data to provide a daily record of Arctic sea ice cover and the rate of melting compared to an average period and specific past years, showing a continuous decline in sea ice extent. In September 2012, the Arctic ice extent reached a new record minimum. Compared to the average extent (1979–2000), the sea ice had diminished by 49%. Human habitation in

7776-497: The increasing influence of Atlantic water heat in melting sea ice in the eastern Arctic. The most recent estimates, for 2016–2018, indicate the oceanic heat flux to the surface has now overtaken the atmospheric flux in the eastern Eurasian Basin. Over the same period the weakening halocline stratification has coincided with increasing upper ocean currents thought to be associated with declining sea ice, indicate increasing mixing in this region. In contrast direct measurements of mixing in

7884-474: The local population, but often met resistance, such as two campaigns in 1187 and 1193 mentioned in chronicles that were defeated. After Novgorod was annexed by Moscow , the newly emerging centralized Russian state also laid claim to the region, with Ivan III of Russia sending expeditionary forces to Siberia in 1483 and 1499–1500. The Russians received tribute, but contact with the tribes ceased after they left. The growing power of Russia began to undermine

7992-615: The mid-17th century, Russia had established areas of control that extended to the Pacific Ocean. Some 230,000 Russians had settled in Siberia by 1709. Siberia became one of the destinations for sending internal exiles . Exile was the main Russian punitive practice with more than 800,000 people exiled during the nineteenth century. The first great modern change in Siberia was the Trans-Siberian Railway , constructed during 1891–1916. It linked Siberia more closely to

8100-483: The more fanciful cartographers, tended to leave the region blank, with only fragments of known coastline sketched in. This lack of knowledge of what lay north of the shifting barrier of ice gave rise to a number of conjectures. In England and other European nations, the myth of an " Open Polar Sea " was persistent. John Barrow , longtime Second Secretary of the British Admiralty , promoted exploration of

8208-553: The most commonly occurring climate in Siberia is continental subarctic (Koppen Dfc , Dwc , or Dsc ), with the annual average temperature about −5 °C (23 °F) and an average for January of −25 °C (−13 °F) and an average for July of +17 °C (63 °F), although this varies considerably, with a July average about 10 °C (50 °F) in the taiga–tundra ecotone . The business -oriented website and blog Business Insider lists Verkhoyansk and Oymyakon , in Siberia's Sakha Republic , as being in competition for

8316-597: The name might be a combination of two words with Turkic origin, su 'water' and bir 'wild land'. Another account sees the name as the ancient tribal ethnonym of the Sihirtia or Sirtya (also Syopyr [sʲɵpᵻr])), a hypothetical Paleo-Asiatic ethnic group assimilated by the Nenets . Mongolist György Kara posits that the toponym Siberia is derived from a Mongolic word sibir , cognate with modern Buryat sheber 'dense forest'. Siberia in Paleozoic times formed

8424-538: The name of a fortress at Qashliq , near Tobolsk. Gerardus Mercator , in a map published in 1595, marks Sibier both as the name of a settlement and of the surrounding territory along a left tributary of the Ob . Other sources contend that the Sibe , an Indigenous Tungusic people , offered fierce resistance to Russian expansion beyond the Urals. Some suggest that the term "Siberia" is a russification of their ethnonym. By

8532-497: The north polar regions remained largely unexplored and their geography conjectural. Pytheas of Massilia recorded an account of a journey northward in 325 BC, to a land he called " Eschate Thule ", where the Sun only set for three hours each day and the water was replaced by a congealed substance "on which one can neither walk nor sail". He was probably describing loose sea ice known today as " growlers " or "bergy bits"; his "Thule"

8640-400: The north coast, north of the Arctic Circle , there is a very short (about one month long) summer. Almost all the population lives in the south, along the route of the Trans-Siberian Railway . The climate in this southernmost part is humid continental climate (Köppen Dfa/Dfb or Dwa/Dwb ) with cold winters but fairly warm summers lasting at least four months. The annual average temperature

8748-400: The north pole was made in 1958 by the submarine USS Nautilus , and the first surface nautical transit occurred in 1977 by the icebreaker NS Arktika . Since 1937, Soviet and Russian manned drifting ice stations have extensively monitored the Arctic Ocean. Scientific settlements were established on the drift ice and carried thousands of kilometres by ice floes . In World War II ,

8856-462: The only kremlin in Siberia), Tomsk (formerly a wealthy merchant's town) and Irkutsk (former seat of Eastern Siberia's governor general, near lake Baikal). Other major cities include: Barnaul , Kemerovo , Krasnoyarsk , Novokuznetsk , Tyumen . Wider definitions of geographic Siberia also include the cities of: Chelyabinsk and Yekaterinburg in the Urals, Khabarovsk and Vladivostok in

8964-578: The pack ice. Icebergs pose a hazard to ships, of which the Titanic is one of the most famous. The ocean is virtually icelocked from October to June, and the superstructure of ships are subject to icing from October to May. Before the advent of modern icebreakers, ships sailing the Arctic Ocean risked being trapped or crushed by sea ice (although the Baychimo drifted through the Arctic Ocean untended for decades despite these hazards). The Arctic Ocean

9072-514: The paleolithic Jōmon people of Japan. Ancient DNA analysis has revealed that the oldest fossil known to carry the derived KITLG allele, which is responsible for blond hair in modern Europeans, is a 17,000 year old Ancient North Eurasian specimen from Siberia. Ancient North Eurasian populations genetically similar to Mal'ta–Buret' culture and Afontova Gora were an important genetic contributor to Native Americans, Europeans, Ancient Central Asians, South Asians, and some East Asian groups (such as

9180-473: The rapidly industrialising Russia of Nicholas II ( r.  1894–1917 ). Around seven million Russians moved to Siberia from Europe between 1801 and 1914. Between 1859 and 1917, more than half a million people migrated to the Russian Far East. Siberia has extensive natural resources: during the 20th century, large-scale exploitation of these took place, and industrial towns cropped up throughout

9288-590: The region from 1818 to 1845 in search of this. In the United States in the 1850s and 1860s, the explorers Elisha Kane and Isaac Israel Hayes both claimed to have seen part of this elusive body of water. Even quite late in the century, the eminent authority Matthew Fontaine Maury included a description of the Open Polar Sea in his textbook The Physical Geography of the Sea (1883). Nevertheless, as all

9396-557: The region. At 7:15 a.m. on 30 June 1908, the Tunguska Event felled millions of trees near the Podkamennaya Tunguska River (Stony Tunguska River) in central Siberia. Most scientists believe this resulted from the air burst of a meteor or a comet. Even though no crater has ever been found, the landscape in the (sparsely inhabited) area still bears the scars of this event. In the early decades of

9504-751: The region. In the 13th century, during the period of the Mongol Empire , the Mongols conquered a large part of this area. With the breakup of the Golden Horde , the autonomous Khanate of Sibir was formed in the late-15th century. Turkic-speaking Yakut migrated north from the Lake Baikal region under pressure from the Mongol tribes from the 13th to 15th centuries. Siberia remained a sparsely populated area. Historian John F. Richards wrote: "it

9612-558: The reintroduction of grazing animals or large herbivores, hypothesizing that a transition from tundra to grassland would lead to a net change in energy emission to absorption ratios. According to Vasily Kryuchkov, approximately 31,000 square kilometers of the Russian Arctic has subjected to severe environmental disturbance. The term "Siberia" has both a long history and wide significance, and association. The understanding, and association of "Siberia" have gradually changed during

9720-520: The rest. It remains relatively stable because the salinity effect on density is bigger than the temperature effect. It is fed by the freshwater input of the big Siberian and Canadian rivers ( Ob , Yenisei , Lena , Mackenzie ), the water of which quasi floats on the saltier, denser, deeper ocean water. Between this lower salinity layer and the bulk of the ocean lies the so-called halocline , in which both salinity and temperature rise with increasing depth. Because of its relative isolation from other oceans,

9828-663: The role of salinity in density. When water reaches the basin, it is pushed by strong winds into a large circular current called the Beaufort Gyre . Water in the Beaufort Gyre is far less saline than that of the Chukchi Sea due to inflow from large Canadian and Siberian rivers. The final defined water mass in the Arctic Ocean is called Arctic Surface Water and is found in the depth range of 150–200 m (490–660 ft). The most important feature of this water mass

9936-462: The sea that sink over the continental shelf into the western Arctic Ocean and create a halocline. This water is met by Greenland Sea Deep Water, which forms during the passage of winter storms. As temperatures cool dramatically in the winter, ice forms, and intense vertical convection allows the water to become dense enough to sink below the warm saline water below. Arctic Bottom Water is critically important because of its outflow, which contributes to

10044-467: The shelf region that begins as inflow from the Pacific passes through the narrow Bering Strait at an average rate of 0.8 Sverdrups and reaches the Chukchi Sea . During the winter, cold Alaskan winds blow over the Chukchi Sea, freezing the surface water and pushing this newly formed ice out to the Pacific. The speed of the ice drift is roughly 1–4 cm/s. This process leaves dense, salty waters in

10152-411: The size of Antarctica . The coastline is 45,390 km (28,200 mi) long. It is the only ocean smaller than Russia , which has a land area of 16,377,742 km (6,323,482 sq mi). The Arctic Ocean is surrounded by the land masses of Eurasia (Russia and Norway), North America ( Canada and the U.S. state of Alaska), Greenland, and Iceland . Note: Some parts of the areas listed in

10260-557: The southernmost portion of its western boundary, and includes most of the drainage basin of the Arctic Ocean . It is further defined as stretching from the territories within the Arctic Circle in the north to the northern borders of Kazakhstan , Mongolia , and China in the south, although the hills of north-central Kazakhstan are also commonly included. The Russian government divides the region into three federal districts (groupings of Russian federal subjects ), of which only

10368-478: The summer months. There is also evidence that the drift is associated with the phase of the Arctic Oscillation and Atlantic Multidecadal Oscillation . Much of the Arctic Ocean is covered by sea ice that varies in extent and thickness seasonally. The mean extent of the Arctic sea ice has been continuously decreasing in the last decades, declining at a rate of currently 12.85% per decade since 1980 from

10476-664: The summer, the SLP contrast is smaller, producing weaker winds. A final example of seasonal pressure system movement is the low pressure system that exists over the Nordic and Barents Seas. It is an extension of the Icelandic Low , which creates cyclonic ocean circulation in this area. The low shifts to centre over the North Pole in the summer. These variations in the Arctic all contribute to ice drift reaching its weakest point during

10584-634: The table are located in the Atlantic Ocean . Other consists of Gulfs , Straits , Channels and other parts without specific names and excludes Exclusive Economic Zones . The Arctic Ocean is connected to the Pacific Ocean by the Bering Strait and to the Atlantic Ocean through the Greenland Sea and Labrador Sea . (The Iceland Sea is sometimes considered part of the Greenland Sea, and sometimes separate.) The largest seas in

10692-523: The time. The region has paleontological significance, as it contains bodies of prehistoric animals from the Pleistocene Epoch , preserved in ice or permafrost . Specimens of Goldfuss cave lion cubs , Yuka the mammoth and another woolly mammoth from Oymyakon , a woolly rhinoceros from the Kolyma , and bison and horses from Yukagir have been found. Remote Wrangel Island and

10800-478: The title of the Northern Hemisphere's Pole of Cold . Oymyakon is a village which recorded a temperature of −67.7 °C (−89.9 °F) on 6 February 1933. Verkhoyansk , a town further north and further inland, recorded a temperature of −69.8 °C (−93.6 °F) for three consecutive nights: 5, 6 and 7 February 1933. Each town is alternately considered the Northern Hemisphere's Pole of Cold –

10908-475: The upper 100–150 m (330–490 ft) of ocean water cools to the freezing point for sea ice to form. In the winter, the relatively warm ocean water exerts a moderating influence, even when covered by ice. This is one reason why the Arctic does not experience the extreme temperatures seen on the Antarctic continent . There is considerable seasonal variation in how much pack ice of the Arctic ice pack covers

11016-553: The western Arctic indicate the Atlantic water heat remains isolated at intermediate depths even under the 'perfect storm' conditions of the Great Arctic Cyclone of 2012 . Waters originating in the Pacific and Atlantic both exit through the Fram Strait between Greenland and Svalbard Island, which is about 2,700 m (8,900 ft) deep and 350 km (220 mi) wide. This outflow is about 9 Sv. The width of

11124-567: The winter, southern Siberia sits near the center of the semi-permanent Siberian High , so winds are usually light in the winter. Precipitation in Siberia is generally low, exceeding 500 millimetres (20 in) only in Kamchatka , where moist winds flow from the Sea of Okhotsk onto high mountains – producing the region's only major glaciers , though volcanic eruptions and low summer temperatures allow only limited forests to grow. Precipitation

11232-628: The world; it holds large oil and gas reserves. The Chukchi shelf forms the border between Russian and the United States as stated in the USSR–USA Maritime Boundary Agreement . The whole area is subject to international territorial claims . The Chukchi Plateau extends from the Chukchi Sea Shelf. An underwater ridge , the Lomonosov Ridge , divides the deep sea North Polar Basin into two oceanic basins :

11340-547: The year. For example, the Beaufort High—an extension of the Siberian High system—is a pressure system that drives the anticyclonic motion of the Beaufort Gyre. During the summer, this area of high pressure is pushed out closer to its Siberian and Canadian sides. In addition, there is a sea level pressure (SLP) ridge over Greenland that drives strong northerly winds through the Fram Strait, facilitating ice export. In

11448-486: Was extensively glaciated in the Pleistocene, but the climate was too dry for glaciation to extend to low elevations. At these low elevations are numerous valleys, many of them deep and covered with larch forest, except in the extreme north where the tundra dominates. Soils are mainly turbels (a type of gelisol ). The active layer tends to be less than one metre deep, except near rivers. The highest point in Siberia

11556-513: Was named after the Sibe people . The Polish historian Jan Chyliczkowski has proposed that the name derives from the Proto-Slavic word for 'north' (cf. Russian север sever ), as in Severia . Anatole Baikaloff has dismissed this explanation. He said that the neighboring Chinese, Turks, and Mongolians, who have similar names for the region, would not have known Russian. He suggested that

11664-674: Was probably Norway , though the Faroe Islands or Shetland have also been suggested. Early cartographers were unsure whether to draw the region around the North Pole as land (as in Johannes Ruysch 's map of 1507, or Gerardus Mercator 's map of 1595) or water (as with Martin Waldseemüller 's world map of 1507). The fervent desire of European merchants for a northern passage, the Northern Sea Route or

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