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Markhachan
The Markhachan (russian: Мархачан) is a river of Sakha Republic, Russia, a tributary of the Lena. It is long, and has a drainage basin of . The river flows across sparse larch taiga in an uninhabited area of Olyokminsky District. In the International scale of river difficulty the Markhachan is a Class III destination for rafting and kayaking. Course The Markhachan has its source in a thermokarst area of the Lena Plateau, near the sources of the Chyna. The river heads mainly southwards along its course, parallel to the Markha in the west. In its last stretch it meanders strongly in the floodplain. Finally it joins the left bank of the Lena from its mouth. The Markhachan freezes in the second half of October and stays under ice until the middle of May. There are about 200 small lakes in its basin.Google Earth Tributaries The largest tributaries of the Markhachan are the long Somogo from the left, and the long Magany-Yurekh (Маганы-Юрэх) and the long Ulakh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Markha (Lena)
The Markha (russian: Марха) is a river of Sakha Republic, Russia, a tributary of the Lena. It is long, and has a drainage basin of . Course It has its source in a small lake of the Lena Plateau and flows across a further five small lakes in its upper reaches. The Markha heads mainly towards the SSE along its course, parallel to the Markhachan in the east. Towards its final stretch it bends southeastwards and joins the left bank of the Lena from its mouth. The river freezes in the second half of October and stays under ice until the middle of May. There are about 800 lakes in its basin. Tributaries The largest tributary of the Markha is the long Namyldzhylakh from the right. See also *List of rivers of Russia References External links *{{commonscat inline Articlein Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; ) is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chyna (river)
The Chyna (russian: Чына; sah, Чына) is a river in Yakutia (Sakha Republic), Russia. It is the longest tributary of the Sinyaya of the Lena basin, with a length of and a drainage basin of . The river flows across the mostly uninhabited territory of Gorny District. The nearest inhabited place is Dikimdya village, located about northeast of its mouth. Course The Chyna begins in the southern sector of the Lena Plateau, near the sources of the Markhachan. It flows first roughly southeastwards across the plateau. About midway through its course the river bends in a wide arch and heads northeastwards, meandering strongly within the floodplain. Finally it meets the right bank of the Sinyaya, a tributary of the Lena, upstream from its mouth. The river freezes in the second half of October and stays under ice until the second half of May.Google Earth There are about 150 lakes in the river basin. The main tributaries of the Chyna are the long Keibele and the long Tyympynay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel-2
Sentinel-2 is an Earth observation mission from the Copernicus Programme that systematically acquires optical imagery at high spatial resolution (10 m to 60 m) over land and coastal waters. The mission is currently a constellation with two satellites, Sentinel-2A and Sentinel-2B; a third satellite, Sentinel-2C, is currently undergoing testing in preparation for launch in 2024. The mission supports a broad range of services and applications such as agricultural monitoring, emergencies management, land cover classification or water quality. Sentinel-2 has been developed and is being operated by the European Space Agency, and the satellites were manufactured by a consortium led by Airbus Defence and Space in Friedrichshafen. Overview The Sentinel-2 mission has the following key characteristics: * Multi-spectral data with 13 bands in the visible, near infrared, and short wave infrared part of the spectrum * Systematic global coverage of land surfaces from 56° S to 84°&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafting
Rafting and whitewater rafting are recreational outdoor activities which use an inflatable raft to navigate a river or other body of water. This is often done on whitewater or different degrees of rough water. Dealing with risk is often a part of the experience. This activity as an adventure sport has become popular since the 1950s, if not earlier, evolving from individuals paddling to rafts with double-bladed paddles or oars to multi-person rafts propelled by single-bladed paddles and steered by a person at the stern, or by the use of oars. Rafting on certain sections of rivers is considered an extreme sport and can be fatal, while other sections are not so extreme or difficult. Rafting is also a competitive sport practiced around the world which culminates in a world rafting championship event between the participating nations. The International Rafting Federation, often referred to as the IRF, is the worldwide body which oversees all aspects of the sport. Equipme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenok
Lenoks, otherwise known as Asiatic trout or Manchurian trout,James Card: Fly fishing in South Korea.' Retrieved 22 June 2015. are salmonid fish of the genus ''Brachymystax'', native to rivers and lakes in Mongolia, Kazakhstan, wider Siberia (including Russian Far East), Northern China and Korea.Kartavtseva, I.V.; Ginatulina, L.K.; Nemkova, G.A.; and Shedko, S.V. (2013). Chromosomal study of the lenoks, Brachymystax (Salmoniformes, Salmonidae) from the South of the Russian Far East.' Journal of Species Research 2(1): 91-98. Species There are four species in this genus, of which three are listed by FishBase: * ''Brachymystax lenok'' (Pallas, 1773) – sharp-snouted lenok * '' Brachymystax savinovi'' Mitrofanov, 1959 * '' Brachymystax tumensis'' T. Mori, 1930 – blunt-snouted lenok A fourth species, '' Brachymystax tsinlingensis'' S. C. Li, 1966, was revalidated in 2015. Traditionally, only ''B. lenok'' was recognized, including both sharp-snouted and blunt-snouted forms. Base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thymallus
''Thymallus'' is a genus of freshwater fish in the salmon family Salmonidae; it is the only genus of subfamily Thymallinae. The type species is ''Thymallus thymallus,'' the grayling. The species in the genus are generically called graylings, but without qualification this also refers specifically to ''T. thymallus.'' Distribution The fishes of this genus are native to the northern parts of the Palearctic and Nearctic realms, ranging from the United Kingdom and northern Europe across Eurasia to Siberia, as well as northern North America. ''T. thymallus'', the grayling, is widespread in Europe, and ''T. arcticus,'' the Arctic grayling, is widespread throughout Eurasia east of the Ural Mountains and in the Nearctic. The other species have more localized ranges in northern Asia. Appearance ''Thymallus'' species are distinguished from other members of the salmon family by their larger scales, their small mouths with teeth on the maxillary bone, and most striking of all, their showy, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Earth
Google Earth is a computer program that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satellite images, aerial photography, and geographic information system, GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering addresses and coordinates, or by using a Computer keyboard, keyboard or computer mouse, mouse. The program can also be downloaded on a smartphone or Tablet computer, tablet, using a touch screen or stylus to navigate. Users may use the program to add their own data using Keyhole Markup Language and upload them through various sources, such as forums or blogs. Google Earth is able to show various kinds of images overlaid on the surface of the earth and is also a Web Map Service client. In 2019, Google has revealed that Google Earth now covers more than 97 percent of the world, and has c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floodplain
A floodplain or flood plain or bottomlands is an area of land adjacent to a river which stretches from the banks of its channel to the base of the enclosing valley walls, and which experiences flooding during periods of high discharge.Goudie, A. S., 2004, ''Encyclopedia of Geomorphology'', vol. 1. Routledge, New York. The soils usually consist of clays, silts, sands, and gravels deposited during floods. Because the regular flooding of floodplains can deposit nutrients and water, floodplains frequently have high soil fertility; some important agricultural regions, such as the Mississippi river basin and the Nile, rely heavily on the flood plains. Agricultural regions as well as urban areas have developed near or on floodplains to take advantage of the rich soil and fresh water. However, the risk of flooding has led to increasing efforts to control flooding. Formation Most floodplains are formed by deposition on the inside of river meanders and by overbank flow. Whereve ... [...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 as 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 which bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayaking
Kayaking is the use of a kayak for moving over water. It is distinguished from canoeing by the sitting position of the paddler and the number of blades on the paddle. A kayak is a low-to-the-water, canoe-like boat in which the paddler sits facing forward, legs in front, using a double-bladed paddle to pull front-to-back on one side and then the other in rotation. Most kayaks have closed decks, although sit-on-top and inflatable kayaks are growing in popularity as well. History Kayaks were created thousands of years ago by the Inuit, formerly known as Eskimos, of the northern Arctic regions. They used driftwood and sometimes the skeleton of whale, to construct the frame of the kayak, and animal skin, particularly seal skin was used to create the body. The main purpose for creating the kayak, which literally translates to "hunter's boat" was for hunting and fishing. The kayak's stealth capabilities allowed for the hunter to sneak up behind animals on the shoreline and successf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lena Plateau
The Lena Plateau, also known as Prilensky Plateau ( rus, Приленское плато, ''Prilenskoye Plato''; sah, Өлүөнэтээҕи хаптал хайалаах сир), is one of the great plateaus of Siberia. Administratively it is mostly within the Sakha Republic (Yakutia), with a small sector in the Irkutsk Oblast, Far Eastern Federal District, Russia. The plateau is named after the Lena River, which flows across it.Google Earth Protected areas There are spectacularly eroded rock formations composed of gypsum-bearing and saline limestone, dolomite and, in some places sandstone, in different spots of the plateau. The Lena Pillars, lining the banks of river Lena in the region, are the most well-known of these features. They were declared a UNESCO World Heritage Site in 2012. Other protected areas in the plateau are the Sinyyaya Pillars by river Sinyaya, and the Turuuk Khaya Rocks by the Lyutenge River. The Olyokma Nature Reserve is located on the eastern side, partl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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