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Thermokarst Lake
Alas () is a shallow depression which occurs primarily in Yakutia, which is formed by subsidence of the Arctic permafrost owing to repeated melting and refreezing. An alas first develops as a shallow lake as melt water fills the depression. The lake eventually dries out and is replaced by grasses and other herbaceous vegetation. Examples An alas is different from thermokarst depressions found elsewhere in the Arctic in that the lake is only temporary. Due to the aridity of Yakutia, the lake will dry up once the underlying ice has been depleted. Alases are often used for pasturage for horses as well as hay-fields. They are common in the Central Yakutian Lowland. The largest alas in the world is Myuryu, located in Ust-Aldan District. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
381 Алас Мамыкан
__NOTOC__ Year 381 (Roman numerals, CCCLXXXI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Syagrius (consul 381), Syagrius and Flavius Julius Eucherius, Eucherius (or, less frequently, year 1134 ''Ab urbe condita''). The denomination 381 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Gratian moves the capital to ''Mediolanum'' (modern-day Milan). Because of his Christianity, Christian beliefs, he eliminates ''Pontifex Maximus'' as Imperial title. Gratian also refuses the robe of office, insulting the paganism, pagan aristocrats of Rome. * The Gaul, Gallic city of Cularo is renamed Gratianopolis (later Grenoble), in honor of Gratian having created a Prince-Bishop, bishopric. Europe * The Visigoths, Visigothic chieftain Athanaric becomes the first foreign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sakha Republic
Sakha, officially the Republic of Sakha (Yakutia), is a republics of Russia, republic of Russia, and the largest federal subject of Russia by area. It is located in the Russian Far East, along the Arctic Ocean, with a population of one million. Sakha comprises half of the area of its governing Far Eastern Federal District, and is the world's List of country subdivisions by area, largest country subdivision, covering over 3,083,523 square kilometers (1,190,555 sq mi). ''Sakha'' following regular sound changes in the course of development of the Yakut language) as the Evenk and Yukaghir exonyms for the Yakuts. It is pronounced as ''Haka'' by the Dolgans, Dolgan language, whose language is a close relative of the Yakut language.Victor P. Krivonogov, "The Dolgans’Ethnic Identity and Language Processes." ''Journal of Siberian Federal University'', Humanities & Social Sciences 6 (2013 6) 870–888. Geography * ''Borders'': ** ''internal'': Chukotka Autonomous Okrug (660 km) ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic
The Arctic (; . ) is the polar regions of Earth, polar region of Earth that surrounds the North Pole, lying within the Arctic Circle. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts of northern Norway (Nordland, Troms, Finnmark, Svalbard and Jan Mayen), northernmost Sweden (Västerbotten, Norrbotten and Lapland (Sweden), Lappland), northern Finland (North Ostrobothnia, Kainuu and Lapland (Finland), Lappi), Russia (Murmansk Oblast, Murmansk, Siberia, Nenets Autonomous Okrug, Nenets Okrug, Novaya Zemlya), the United States (Alaska), Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), and northern Iceland (Grímsey and Kolbeinsey), along with the Arctic Ocean and adjacent seas. Land within the Arctic region has seasonally varying cryosphere, snow and ice cover, with predominantly treeless permafrost under the tundra. Arctic seas contain seasonal sea ice in many places. The Arctic region is a unique area among Earth's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permafrost
Permafrost () is soil or underwater sediment which continuously remains below for two years or more; the oldest permafrost has been continuously frozen for around 700,000 years. Whilst the shallowest permafrost has a vertical extent of below a meter (3 ft), the deepest is greater than . Similarly, the area of individual permafrost zones may be limited to narrow mountain summits or extend across vast Arctic regions. The ground beneath glaciers and ice sheets is not usually defined as permafrost, so on land, permafrost is generally located beneath a so-called active layer of soil which freezes and thaws depending on the season. Around 15% of the Northern Hemisphere or 11% of the global surface is underlain by permafrost, covering a total area of around . This includes large areas of Alaska, Canada, Greenland, and Siberia. It is also located in high mountain regions, with the Tibetan Plateau being a prominent example. Only a minority of permafrost exists in the Southern Hemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbaceous
Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of the '' Shorter Oxford English Dictionary'' defines "herb" as: # "A plant whose stem does not become woody and persistent (as in a tree or shrub) but remains soft and succulent, and dies (completely or down to the root) after flowering"; # "A (freq. aromatic) plant used for flavouring or scent, in medicine, etc.". (See: Herb) The same dictionary defines "herbaceous" as: # "Of the nature of a herb; esp. not forming a woody stem but dying down to the root each year"; # "BOTANY Resembling a leaf in colour or texture. Opp. scarious". Botanical sources differ from each other on the definition of "herb". For instance, the Hunt Institute for Botanical Documentation includes the condition "when persisting over more than one growing season, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermokarst
Thermokarst is a type of terrain characterised by very irregular surfaces of marshy hollows and small hummocks formed when ice-rich permafrost thaws. The land surface type occurs in Arctic areas, and on a smaller scale in mountainous areas such as the Himalayas and the Swiss Alps. These pitted surfaces resemble clusters of small lakes formed by dissolution of limestone in some karst areas, which is how they came to have "''karst''" attached to their name, even though no limestone is actually present. Small domes that form on the surface due to frost heaving with the onset of winter are only temporary features. They collapse during the following summer thaw, leaving a small surface depression. Some ice lenses grow and form larger surface hummocks (" pingos") which can last for many years, and sometimes become covered with grasses and sedges, until they begin to thaw. These domed surfaces eventually collapse – either annually or after longer periods – and form depressions wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Yakutian Lowland
The Central Yakutian LowlandJohn Kimble (ed.), ''Cryosols: Permafrost-Affected Soils'' or the Central Yakutian Lowlands (; ), also known as the Central Yakut Plain or the Vilyuy Lowland, is a low alluvial plain in Siberia, Russia. Administratively the territory of the lowland is part of the Sakha Republic (Yakutia). It is an extensive plain located in the transition zone between Central and Eastern Siberia and is one of the Great Russian Regions. The main city is Yakutsk, with a number of settlements near it, but the area of the lowland is largely uninhabited elsewhere.Google Earth Geography The Central Yakutian Lowlands extend along the middle basin of the Lena River and partly further downstream and are about in length and wide. They drop gradually from the Central Siberian Plateau to the west and the Lena Plateau to the south and southwest. To the northwest the lowland merges with the North Siberian Lowland and to the north it is bound by the watershed fringing the Lena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ust-Aldan District
Ust-Aldansky District (; , ''Uus-Aldan uluuha'', ) is an administrativeConstitution of the Sakha Republic and municipalLaw #172-Z #351-III district (raion, or ''ulus''), one of the thirty-four in the Sakha Republic, Russia. It is located in the center of the republic and borders with Kobyaysky District in the north, Tomponsky District in the northeast, Tattinsky District in the east, Churapchinsky District in the southeast, Megino-Kangalassky District in the south, and with Namsky District in the west. The area of the district is .''Registry of the Administrative-Territorial Divisions of the Sakha Republic'' Its administrative center is the rural locality (a '' selo'') of Borogontsy. Population: 22,372 ( 2002 Census); The population of Borogontsy accounts for 23.6% of the district's total population. Geography The landscape of the district is mostly flat. Its main rivers include the Lena and the Aldan.Center of the Socioeconomic and Political MonitoringUst-Aldansky District ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yhyakh
Yhyаkh (, ) is the festival that celebrates the rebirth of nature after a hard winter, the triumph of life, the beginning of a new year in the Sakha Republic. Historic celebration is observed on the 21st June, the day of the summer solstice. Celebration Sakha people celebrate the New Year twice a year – in winter with the rest of citizens of Russia, and in summer – according to the ancient traditions. Yakutia is the largest region of Russia. The winter temperatures sometimes reach −60 °C, while the summer is very short, lasting only three months. The holiday is celebrated in the period between 10 and 25 June. The Yhyakh festival (literally meaning "abundance") is related to a cult of a solar deity, with a fertility cult. Ancient Sakha celebrated the New Year at the Yhyаkh festival. Its traditions include women and children decorating trees and tethering posts with "salama" (nine bunches of horse hair hung on horse-hair ropes). The oldest man, wearing white, opens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yakutsk
Yakutsk ( ) is the capital and largest city of Sakha, Russia, located about south of the Arctic Circle. Fueled by the mining industry, Yakutsk has become one of Russia's most rapidly growing regional cities, with a population of 355,443 at the 2021 census. Yakutsk has an average annual temperature of , winter high temperatures consistently well below , and a record low of has been recorded.Погода в Якутске. Температура воздуха и осадки. Июль 2001 г. (in Russian) As a result, Yakutsk is the coldest ''major city'' in the world (although a number of smaller towns in that region are slightly colder). Yakutsk is also the largest city located in [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yakut Language
The Yakut language ( ), also known as the Sakha language ( ) or Yakutian, is a Siberian Turkic language spoken by around 450,000 native speakers—primarily by ethnic Yakuts. It is one of the official languages of the Sakha Republic, a republic in the Russian Federation. The Yakut language has a large number of loanwords of Mongolic origin, a layer of vocabulary of unclear origin, as well as numerous recent borrowings from Russian. Like other Turkic languages, Yakut is an agglutinative language and features vowel harmony. Classification Yakut is a member of the Northeastern Common Turkic family of languages, which also includes Shor, Tuvan and Dolgan. Like most Turkic languages, Yakut has vowel harmony, is agglutinative and has no grammatical gender. Word order is usually subject–object–verb. Yakut has been influenced by Tungusic and Mongolian languages. Historically, Yakut left the community of Common Turkic speakers relatively early. Due to this, it diverge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
