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54-722: The district is elongated from the northwest to the southeast; a major part of it belongs to the basin of the Pinega River which divides the district into roughly equal areas. The main tributaries of the Pinega within the district are the Yula (left), the Pokshenga (left), and the Yezhuga (right). The northern part of the district belongs to the basins of the Kuloy River and its major right tributary,

108-427: A hierarchical pattern . Other terms for a drainage basin are catchment area , catchment basin , drainage area , river basin , water basin , and impluvium . In North America, they are commonly called a watershed , though in other English-speaking places, "watershed" is used only in its original sense, that of the drainage divide line. A drainage basin's boundaries are determined by watershed delineation ,

162-437: A common task in environmental engineering and science. In a closed drainage basin, or endorheic basin , rather than flowing to the ocean, water converges toward the interior of the basin, known as a sink , which may be a permanent lake, a dry lake , or a point where surface water is lost underground . Drainage basins are similar but not identical to hydrologic units , which are drainage areas delineated so as to nest into

216-449: A drainage basin, and there are different ways to interpret that data. In the unlikely event that the gauges are many and evenly distributed over an area of uniform precipitation, using the arithmetic mean method will give good results. In the Thiessen polygon method, the drainage basin is divided into polygons with the rain gauge in the middle of each polygon assumed to be representative for

270-540: A drainage boundary is referred to as watershed delineation . Finding the area and extent of a drainage basin is an important step in many areas of science and engineering. Most of the water that discharges from the basin outlet originated as precipitation falling on the basin. A portion of the water that enters the groundwater system beneath the drainage basin may flow towards the outlet of another drainage basin because groundwater flow directions do not always match those of their overlying drainage network. Measurement of

324-581: A multi-level hierarchical drainage system . Hydrologic units are defined to allow multiple inlets, outlets, or sinks. In a strict sense, all drainage basins are hydrologic units but not all hydrologic units are drainage basins. About 48.71% of the world's land drains to the Atlantic Ocean . In North America , surface water drains to the Atlantic via the Saint Lawrence River and Great Lakes basins,

378-424: A part of municipal formations are known as inter-settlement territories  [ ru ] , a concept introduced in 2019. The Federal Law was amended on 27 May 2014 to include new types of municipal divisions: In June 2014, Chelyabinsky Urban Okrug became the first urban okrug to implement intra-urban divisions. Federal legislation introduced on May 1, 2019, added an additional territorial unit: All

432-602: A protected natural area at the federal level. The area was originally populated by speakers of Uralic languages and then colonized by the Novgorod Republic . After the fall of Novgorod, the area became a part of the Grand Duchy of Moscow . In the course of the administrative reform carried out in 1708 by Peter the Great , the area was included into Archangelgorod Governorate , with the creation of Kevrolsky Uyezd . The seat of

486-408: A rural locality. In February 1927, Pinezhsky Uyezd was abolished and merged into Arkhangelsky Uyezd . In 1929, several governorates were merged into Northern Krai . On July 15, 1929, the uyezds were abolished and Pinezhsky District was established. Pinezhsky District became a part of Arkhangelsk Okrug of Northern Krai. At the same time, Karpogorsky District , with the administrative center in

540-418: Is an area of land in which all flowing surface water converges to a single point, such as a river mouth , or flows into another body of water , such as a lake or ocean . A basin is separated from adjacent basins by a perimeter, the drainage divide , made up of a succession of elevated features, such as ridges and hills . A basin may consist of smaller basins that merge at river confluences , forming

594-480: Is referred to as " watershed management ". In Brazil , the National Policy of Water Resources, regulated by Act n° 9.433 of 1997, establishes the drainage basin as the territorial division of Brazilian water management. When a river basin crosses at least one political border, either a border within a nation or an international boundary, it is identified as a transboundary river . Management of such basins becomes

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648-600: Is the Dead Sea . Drainage basins have been historically important for determining territorial boundaries, particularly in regions where trade by water has been important. For example, the English crown gave the Hudson's Bay Company a monopoly on the fur trade in the entire Hudson Bay basin, an area called Rupert's Land . Bioregional political organization today includes agreements of states (e.g., international treaties and, within

702-536: Is the main industry of the district. Food industry is also present. Agriculture accounts for 0.1% of the total production, and is mainly represented by cattle breeding and production of potatoes. A railway line connecting Arkhangelsk and Karpogory passes through the district. This line is expected to become part of the Belkomur project—a railway line connecting Arkhangelsk via the Komi Republic with Perm Krai and

756-682: The African Great Lakes , the interiors of Australia and the Arabian Peninsula , and parts in Mexico and the Andes . Some of these, such as the Great Basin, are not single drainage basins but collections of separate, adjacent closed basins. In endorheic bodies of water where evaporation is the primary means of water loss, the water is typically more saline than the oceans. An extreme example of this

810-584: The Eastern Seaboard of the United States, the Canadian Maritimes , and most of Newfoundland and Labrador . Nearly all of South America east of the Andes also drains to the Atlantic, as does most of Western and Central Europe and the greatest portion of western Sub-Saharan Africa , as well as Western Sahara and part of Morocco . The two major mediterranean seas of the world also flow to

864-575: The Federation Council ( upper house of the Federal Assembly ). They do, however, differ in the degree of autonomy they enjoy. De jure, excluding the occupied Ukrainian territories, there are 6 types of federal subjects—21 republics , 9 krais , 46 oblasts , 2 federal cities , 1 autonomous oblast , and 4 autonomous okrugs . Autonomous okrugs are the only ones that have a peculiar status of being federal subjects in their own right, yet at

918-718: The Mississippi (3.22 million km ), and the Río de la Plata (3.17 million km ). The three rivers that drain the most water, from most to least, are the Amazon, Ganges , and Congo rivers. Endorheic basin are inland basins that do not drain to an ocean. Endorheic basins cover around 18% of the Earth's land. Some endorheic basins drain to an Endorheic lake or Inland sea . Many of these lakes are ephemeral or vary dramatically in size depending on climate and inflow. If water evaporates or infiltrates into

972-614: The Nemnyuga . Minor areas in the east of the district drain across the border of the district to the Mezen River . The whole area of the district is in the White Sea basin. Almost the whole of the district is covered by coniferous forests ( taiga ). The exception are the meadows in the floodplains . There are many glacial lakes across the district, especially in its northern part. The biggest lakes are Teldozero , Poltozero , Karasozero (all in

1026-781: The Nile River ), Southern , Central, and Eastern Europe , Turkey , and the coastal areas of Israel , Lebanon , and Syria . The Arctic Ocean drains most of Western Canada and Northern Canada east of the Continental Divide , northern Alaska and parts of North Dakota , South Dakota , Minnesota , and Montana in the United States, the north shore of the Scandinavian peninsula in Europe, central and northern Russia, and parts of Kazakhstan and Mongolia in Asia , which totals to about 17% of

1080-510: The Ural Mountains . The stretch between Arkhangelsk and Karpogory was built in the 1970s. The Pinega River is navigable below the village of Sogra , although there is no regular passenger navigation. In 1926–1928, a canal connecting the Pinega with the Kuloy was constructed; however, currently the canal is neglected. An important road along the right bank of the Pinega connects Arkhangelsk with

1134-440: The groundwater . A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. Subdivisions of Russia#Municipal divisions Russia is divided into several types and levels of subdivisions. The federal districts are groupings of the federal subjects of Russia. Federal districts are not mentioned in

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1188-577: The invasion of Ukraine that began in late February, which were organized by Russian occupation authorities in territories where hostilities were ongoing and much of the population had fled. It occurred seven months after the start of the invasion and less than a month after the start of the Ukrainian Kharkiv counteroffensive . The signing ceremony was held in the Grand Kremlin Palace in Moscow in

1242-453: The selo of Karpogory, was established. In 1959, Karpogorsky and Pinezhsky Districts were merged into one district with the administrative center located in Karpogory. In the following years, the first-level administrative division of Russia kept changing. In 1930, the okrug was abolished, and the district was subordinated to the central administration of Northern Krai. In 1936, the krai itself

1296-758: The Andes. The Indian Ocean 's drainage basin also comprises about 13% of Earth's land. It drains the eastern coast of Africa, the coasts of the Red Sea and the Persian Gulf , the Indian subcontinent , Burma, and most parts of Australia . The five largest river basins (by area), from largest to smallest, are those of the Amazon (7 million km ), the Congo (4 million km ), the Nile (3.4 million km ),

1350-701: The Atlantic. The Caribbean Sea and Gulf of Mexico basin includes most of the U.S. interior between the Appalachian and Rocky Mountains , a small part of the Canadian provinces of Alberta and Saskatchewan , eastern Central America , the islands of the Caribbean and the Gulf, and a small part of northern South America. The Mediterranean Sea basin, with the Black Sea , includes much of North Africa , east-central Africa (through

1404-736: The Federation. However, six of these federal subjects—the Republic of Crimea , the Donetsk People's Republic , the Kherson Oblast , the Lugansk People's Republic , the federal city of Sevastopol , and the Zaporozhye Oblast —are internationally recognized as part of Ukraine . All federal subjects are of equal federal rights in the sense that they have equal representation—two delegates each—in

1458-747: The Presidium of the Supreme Soviet of the RSFSR of 17 August 1982 "On the Procedures of Dealing with the Matters of the Administrative-Territorial Structure of the RSFSR". The 1993 Constitution, however, did not identify the matters of the administrative-territorial divisions as the responsibility of the federal government nor as the joint responsibility of the federal government and the subjects. This

1512-822: The Republic of Crimea and the City of Sevastopol as constituent members of the Russian Federation. According to the Treaty, the Republic of Crimea is accepted as a federal subject with the status of a republic while the City of Sevastopol has received federal city status. Neither the Republic of Crimea nor the city of Sevastopol are politically recognized as parts of Russia by most countries . Similarly, Russia also annexed four Ukrainian oblasts of Donetsk , Kherson , Luhansk , and Zaporozhzhia on 30 September 2022 after internationally-unrecognized referendums held days prior, during

1566-598: The US, interstate compacts ) or other political entities in a particular drainage basin to manage the body or bodies of water into which it drains. Examples of such interstate compacts are the Great Lakes Commission and the Tahoe Regional Planning Agency . In hydrology , the drainage basin is a logical unit of focus for studying the movement of water within the hydrological cycle . The process of finding

1620-406: The basin, it can form tributaries that change the structure of the land. There are three different main types, which are affected by the rocks and ground underneath. Rock that is quick to erode forms dendritic patterns, and these are seen most often. The two other types of patterns that form are trellis patterns and rectangular patterns. Rain gauge data is used to measure total precipitation over

1674-430: The discharge of water from a basin may be made by a stream gauge located at the basin's outlet. Depending on the conditions of the drainage basin, as rainfall occurs some of it seeps directly into the ground. This water will either remain underground, slowly making its way downhill and eventually reaching the basin, or it will permeate deeper into the soil and consolidate into groundwater aquifers. As water flows through

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1728-441: The drainage area is dependent on the soil type. Certain soil types such as sandy soils are very free-draining, and rainfall on sandy soil is likely to be absorbed by the ground. However, soils containing clay can be almost impermeable and therefore rainfall on clay soils will run off and contribute to flood volumes. After prolonged rainfall even free-draining soils can become saturated , meaning that any further rainfall will reach

1782-692: The drainage basin to the mouth, and may accumulate there, disturbing the natural mineral balance. This can cause eutrophication where plant growth is accelerated by the additional material. Because drainage basins are coherent entities in a hydrological sense, it has become common to manage water resources on the basis of individual basins. In the U.S. state of Minnesota , governmental entities that perform this function are called " watershed districts ". In New Zealand, they are called catchment boards. Comparable community groups based in Ontario, Canada, are called conservation authorities . In North America, this function

1836-616: The federal subjects are grouped into eight federal districts, each administered by an envoy appointed by the President of Russia . The envoys serve as liaisons between the federal subjects and the federal government and are primarily responsible for overseeing the compliance of the federal subjects with federal laws. For economic and statistical purposes the federal subjects are grouped into twelve economic regions. Economic regions and their parts sharing common economic trends are in turn grouped into economic zones and macrozones . In order for

1890-506: The following types of high-level administrative divisions are recognized: Autonomous okrugs and okrugs are intermediary units of administrative divisions, which include some of the federal subject's districts and cities/towns/urban-type settlements of federal subject significance. Typical lower-level administrative divisions include: In the course of the Russian municipal reform of 2004–2005, all federal subjects of Russia were to streamline

1944-435: The ground and along rivers it can pick up nutrients , sediment , and pollutants . With the water, they are transported towards the outlet of the basin, and can affect the ecological processes along the way as well as in the receiving water body . Modern use of artificial fertilizers , containing nitrogen (as nitrates ), phosphorus , and potassium , has affected the mouths of drainage basins. The minerals are carried by

1998-744: The ground at its terminus, the area can go by several names, such playa, salt flat, dry lake , or alkali sink . The largest endorheic basins are in Central Asia , including the Caspian Sea , the Aral Sea , and numerous smaller lakes. Other endorheic regions include the Great Basin in the United States, much of the Sahara Desert , the drainage basin of the Okavango River ( Kalahari Basin ), highlands near

2052-492: The nation's constitution, do not have competences of their own, and do not manage regional affairs. They exist solely to monitor consistency between the federal and regional bodies of law, and ensure governmental control over the civil service, judiciary, and federal agencies operating in the regions. The federal district system was established on 13 May 2000. Since 30 September 2022, the Russian Federation has consisted of eighty-nine federal subjects that are constituent members of

2106-486: The northern part of the district), and Krasny Okun (in its southern part). Karst landscapes, with karst caves, formed in the middle course of the Pinega, now inside the district limits. These hilly landscapes contrast with the plain to the west, in the valley of the Northern Dvina River . Pinezhsky Nature Reserve , located within the district limits, had been created to protect these landscapes and designated as

2160-453: The presence of occupation authority heads Leonid Pasechnik , Denis Pushilin , Yevgeny Balitsky , and Vladimir Saldo , and Russian President Vladimir Putin . Like Crimea, none of the four occupied regions are internationally recognized as part of Russia. Prior to the adoption of the 1993 Constitution of Russia , the administrative-territorial structure of Russia was regulated by the Decree of

2214-418: The rainfall on the area of land included in its polygon. These polygons are made by drawing lines between gauges, then making perpendicular bisectors of those lines form the polygons. The isohyetal method involves contours of equal precipitation are drawn over the gauges on a map. Calculating the area between these curves and adding up the volume of water is time-consuming. Isochrone maps can be used to show

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2268-625: The responsibility of the countries sharing it. Nile Basin Initiative , OMVS for Senegal River , Mekong River Commission are a few examples of arrangements involving management of shared river basins. Management of shared drainage basins is also seen as a way to build lasting peaceful relationships among countries. The catchment is the most significant factor determining the amount or likelihood of flooding . Catchment factors are: topography , shape, size, soil type, and land use (paved or roofed areas). Catchment topography and shape determine

2322-461: The river rather than being absorbed by the ground. If the surface is impermeable the precipitation will create surface run-off which will lead to higher risk of flooding; if the ground is permeable, the precipitation will infiltrate the soil. Land use can contribute to the volume of water reaching the river, in a similar way to clay soils. For example, rainfall on roofs, pavements , and roads will be collected by rivers with almost no absorption into

2376-478: The same time they are considered to be administrative divisions of other federal subjects (with the Chukotka Autonomous Okrug being the only exception). On 18 March 2014, as a part of the annexation of Crimea and following the establishment of the Republic of Crimea (an independent entity that was recognized only by Russia), a treaty was signed between Russia and the Republic of Crimea incorporating

2430-418: The speed with which the runoff reaches a river. A long thin catchment will take longer to drain than a circular catchment. Size will help determine the amount of water reaching the river, as the larger the catchment the greater the potential for flooding. It is also determined on the basis of length and width of the drainage basin. Soil type will help determine how much water reaches the river. The runoff from

2484-492: The structures of local self-government, which is guaranteed by the Constitution of Russia . The reform mandated that each federal subject was to have a unified structure of municipal government bodies by 1 January 2005, and a law enforcing the reform provisions went into effect on 1 January 2006. According to the law, the units of the municipal division (called " municipal formations ") are as follows: Territories not included as

2538-415: The time taken for rain to reach the river, while catchment size, soil type, and development determine the amount of water to reach the river. Generally, topography plays a big part in how fast runoff will reach a river. Rain that falls in steep mountainous areas will reach the primary river in the drainage basin faster than flat or lightly sloping areas (e.g., > 1% gradient). Shape will contribute to

2592-477: The time taken for runoff water within a drainage basin to reach a lake, reservoir or outlet, assuming constant and uniform effective rainfall. Drainage basins are the principal hydrologic unit considered in fluvial geomorphology . A drainage basin is the source for water and sediment that moves from higher elevation through the river system to lower elevations as they reshape the channel forms. Drainage basins are important in ecology . As water flows over

2646-531: The uyezd was located in Kevrola , now a village. In 1780, the governorate was abolished and transformed into Vologda Viceroyalty , with the creation of Pinezhsky Uyezd in place of Kevrolsky Uyezd. The seat of the uyezd was in Pinega . In 1796, Pinezhsky Uyezd was transferred to Arkhangelsk Governorate . In 1925, the town of Pinega, while still being the administrative center of the uyezd, was downgraded in status to that of

2700-520: The valley of the Mezen River . The road within the limits of the district is not paved. From this road another one, also unpaved, branches off and follows the Pinega to Karpogory, the village of Zanyukhcha , and then crosses the border with the Komi Republic to the timber production settlements. The district contains twenty objects classified as cultural and historical heritage by Russian Federal law and additionally one object classified as cultural and historical heritage of local importance (the chapel in

2754-674: The village of Kushkopala ). The monuments protected at the federal level include: There are two state museums in the district — the District Museum in the settlement of Pinega and the memorial museum of the author Fyodor Abramov in the selo of Verkola, located in the building of the school where he studied. In 2004, the Karst Museum was open in the Pinezhsky Nature Reserve . The reserve attracts tourists who visit karst caves. Drainage basin A drainage basin

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2808-753: The world's land. Just over 13% of the land in the world drains to the Pacific Ocean . Its basin includes much of China, eastern and southeastern Russia, Japan, the Korean Peninsula , most of Indochina, Indonesia and Malaysia, the Philippines, all of the Pacific Islands , the northeast coast of Australia , and Canada and the United States west of the Continental Divide (including most of Alaska), as well as western Central America and South America west of

2862-415: Was interpreted by the governments of the federal subjects as a sign that the matters of the administrative-territorial divisions became solely the responsibility of the federal subjects. As a result, the modern administrative-territorial structures of the federal subjects vary significantly from one federal subject to another. While the implementation details may be considerably different, in general, however,

2916-502: Was transformed into Northern Oblast . In 1937, Northern Oblast was split into Arkhangelsk Oblast and Vologda Oblast. Pinezhsky District remained in Arkhangelsk Oblast ever since. Administratively, the district is divided into seventeen selsoviets . The following selsoviets have been established (the administrative centers are given in parentheses): Municipally , the district is divided into fifteen rural settlements (the administrative centers are given in parentheses): Timber industry

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