drainage basin - the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet; "flood control in the Missouri basin" catchment area , catchment basin , drainage area , river basin , watershed , basin Measurement of the discharge of water from a basin may be made by a stream gauge located at the basin's outlet. Hello guys here is our rivers education revision video, we hope you guys like it.Thankyou Synonyms for drainage basin include watershed, catchment area, catchment basin, drainage area and catchment. A drainage basin provides a limited surface area within which physical processes pertinent to the general hydrology may be considered. 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. Rain gauge data is used to measure total precipitation over a drainage basin, and there are different ways to interpret that data. The largest drainage basin in the world is the Amazon, covering 6,144,727 km²(a third of the area of South America). In … De très nombreux exemples de phrases traduites contenant "drainage basin" – Dictionnaire français-anglais et moteur de recherche de traductions françaises. Shape will contribute to the speed with which the runoff reaches a river. Drainage patterns. Drainage basins are the principal hydrologic unit considered in fluvial geomorphology. Bioregional political organization today includes agreements of states (e.g., international treaties and, within 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. drainage basin meaning: 1. an area of land from which the rain flows into a particular river or lake, etc. It is also determined on the basis of length and width of the drainage basin. Our editors will review what you’ve submitted and determine whether to revise the article. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water. The drainage basin includes all the surface water from rain runoff, snowmelt, hail, sleet and nearby streams that run downslope towards the shared outlet, as well as the groundwater underneath the earth's surface. In most cases, a small stream will lead to a bigger stream, which will then lead to a river, and finally an open body of water. Information and translations of drainage basin in the most comprehensive dictionary definitions resource on the web. "Catchment basin" redirects here. A drainage basin is the area of land that it drained by a river and its tributaries. The three rivers that drain the most water, from most to least, are the Amazon, Ganga, and Congo rivers.[9]. Omissions? When it rains, water falls on all surfaces, not just in the waterways. drainage basin. Land use can contribute to the volume of water reaching the river, in a similar way to clay soils. A drainage system is described as accordant if its pattern correlates to … This can cause eutrophication where plant growth is accelerated by the additional material. 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. [1] Drainage basins connect into other drainage basins at lower elevations in a hierarchical pattern, with smaller sub-drainage basins, which in turn drain into another common outlet.[2]. The boundary between the drainage basins is a drainage division of all precipitation on the opposite sides of a drainage division will flow into several drainage basins. 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 the African Great Lakes, the interiors of Australia and the Arabian Peninsula, and parts in Mexico and the Andes. Per the lie of channels, drainage systems can fall into one of several categories, known as drainage patterns.These depend on the topography and geology of the land.. All forms of transitions can occur between parallel, dendritic, and trellis patterns. It is an area of land. In a drainage basin or watershed, all the precipitation that falls will eventually feed into a single river. Water does not come into or leave planet earth. Other terms for drainage basin are catchment area, catchment basin, drainage area, river basin, water basin,[3] [4] and impluvium. If you live somewhere that gets a lot of rain or snow, has runoff from streets, or simply experience a lot of sitting water, a catch basin could help. Cycleau - A project looking at approaches to managing catchments in North West Europe, flash animation of how rain falling onto the landscape will drain into a river depending on the terrain, StarHydro – software tool that covers concepts of fluvial geomorphology and watershed hydrology, Florida Watersheds and River Basins - Florida DEP, List of rivers that have reversed direction, A Directory of Important Wetlands in Australia, Bangladesh Haor and Wetland Development Board, https://en.wikipedia.org/w/index.php?title=Drainage_basin&oldid=991247644, Articles with dead external links from December 2017, Articles with permanently dead external links, Short description is different from Wikidata, Articles with unsourced statements from January 2017, Creative Commons Attribution-ShareAlike License, About 48.7% of the world's land drains to the, Just over 13% of the land in the world drains to the, This page was last edited on 29 November 2020, at 02:15. Some streams, notably in Finland and from southern Poland to west-central Russia, have their sources in hills of Cenozoic rocks,…, …is on subsurface runoff (or drainage). The exit is the end of the drainage basin and is also referred as a watershed and catchment area. Comparable community groups based in Ontario, Canada, are called conservation authorities. The high average discharge rate is attributable to the large amounts of precipitation received at higher elevations in the Rockiesand coastal mountain ranges, caused by moist air masses moving off the Pacif… The catchment is the most significant factor determining the amount or likelihood of flooding. For example, the total area drained by the Mississippi River constitutes its drainage basin, whereas that part of the Mississippi River drained by the Ohio River is the Ohio’s drainage basin. Drainage basins have been historically important for determining territorial boundaries, particularly in regions where trade by water has been important. Soil type will help determine how much water reaches the river. A drainage basin is an area of land drained by a river and its tributaries (river system). If you follow a small stream downhill, where do you think it will lead? 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. The drainage basin - as stated earlier - is an example of an open system, and many of the terms above are central to it. Other terms that are used to describe a drainage basin are catchment, catchment area, catchment basin, drainage area, river basin and water basin. A long thin catchment will take longer to drain than a circular catchment. The basin sheds water into the Pacific Ocean at an average rate of 21,200 m3/s. If the gauges are many and evenly distributed over an area of uniform precipitation, using the arithmetic mean method will give good results. 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). A drainage basin is an area of land where precipitation flows to a common outlet, such as a river or lake. 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. Description The Pacific drainage basin, in the Cordillera region, is 1.08 million km2. A portion of the water that enters the groundwater system beneath the drainage basin may flow towards the outlet of another drainage basin because groundwate… This is the total volume of water flowing through a channel at any given point and is measured in cubic metres per second (cumecs). In New Zealand, they are called catchment boards. Some of these, such as the Great Basin, are not single drainage basins but collections of separate, adjacent closed basins. All of these waterways are connected and rely on precipitation to flow properly. drainage basin - traduction anglais-français. [ drā ′nĭj ] An area drained by a river system. It includes water found in the water table and su… Isochrone maps can be used to show the time taken for runoff water within a drainage basin to reach a lake, reservoir or outlet, assuming constant and uniform effective rainfall.[10][11][12][13]. 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 the rainfall on the area of land included in its polygon. A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water. They are also known as catchments, catchment basins, watersheds, or water basins. A drainage basin includes all areas that gather precipitation water and direct it to a particular stream, stream system, lake, or other body of … A drainage basin is the area of land that it drained by a river and its tributaries. Drainage basin, also called catchment area, or (in North America) watershed, area from which all precipitation flows to a single stream or set of streams. Updates? In hydrology, the drainage basin is a logical unit of focus for studying the movement of water within the hydrological cycle, because the majority of water that discharges from the basin outlet originated as precipitation falling on the basin. A drainage basin is the area of land that provides all water for a river that eventually exits to another body of water (another river, a lake, sea or ocean). The largest of these consists of much of the interior of Asia, which drains into the Caspian Sea, the Aral Sea, and numerous smaller lakes. This is known as the global hydrological cycle. This article was most recently revised and updated by, https://www.britannica.com/science/drainage-basin, USGS Water Science School - Watersheds and Drainage Basins. The runoff from 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. The name given to the study of lakes is limnology. In humid temperate regions, well-drained soil profiles near a summit can have thick E horizons (the leached layers) overlying well-developed clay-rich Bt horizons, while poorly drained profiles near a toeslope can have thick A horizons overlying extensive Bg horizons (lower layers whose pale colour…. Management of shared drainage basins is also seen as a way to build lasting peaceful relationships among countries.[14]. A drainage basin (sometimes called a catchment basin) is basically a heavy duty box that comes in various sizes with a slotted lid. The boundary between drainage basins is a drainage divide: all the precipitation on opposite sides of a drainage divide will flow into different drainage basins. Especially in North American usage however, watershed refers to the drainage basin itself. The isohyetal method involves contours of equal precipitation are drawn over the gauges on a map. There are no inputs or outputs.The drainage basin hydrological system is a local open system. The drainage basin acts as a funnel by collecting all the water within the area covered by the basin and channelling it to a single point. Formulation", Instructional video: Manual watershed delineation is a five-step process, Instructional video: To delineate a watershed you must identify land surface features from topographic contours, Water Evaluation And Planning System (WEAP) - modeling hydrologic processes in a drainage basin, New Mexico State University - Water Task Force, Watershed Condition Classification Technical Guide. [5][6][7] In North America, the term watershed is commonly used to mean a drainage basin, though in other English-speaking countries, it is used only in its original sense, that of a drainage divide. Forums pour discuter de drainage basin, voir ses formes composées, des exemples et poser vos questions. The drainage basin acts like a funnel - collecting all the water within the area covered by the basin and channeling it into a waterway. After prolonged rainfall even free-draining soils can become saturated, meaning that any further rainfall will reach the river rather than being absorbed by the ground. Kosi geographic river river basins geography myp gcse dp the canadian atlas glossary of drainage basin hydrological system a edexcel gcse 9 1 geography b Drainage Basin Hydrological System A Level GeographyDrainage Basin Definitions Diagram Quizlet10 Aa The Drainage BasinRiver Environments Drainage Basin System Gcse Ccea GeographyDrainage Basins Definition Characteristics LessonWhat … A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water. In hydrology, the drainage basin is a logical unit of focus for studying the movement of water within the hydrological cycle, because the majority of water that discharges from the basin outlet originated as precipitation falling on the basin. Gratuit. Catchment factors are: topography, shape, size, soil type, and land use (paved or roofed areas). For example, rainfall on roofs, pavements, and roads will be collected by rivers with almost no absorption into the groundwater. Drainage basins are important in ecology. In the U.S. state of Minnesota, governmental entities that perform this function are called "watershed districts". Learn more. The following is a list of the major ocean basins: The five largest river basins (by area), from largest to smallest, are the basins of the Amazon (7M km2), the Congo (4M km2), the Nile (3.4M km2), the Mississippi (3.22M km2), and the Río de la Plata (3.17M km2). Around 18% of all land drains to endorheic lakes or seas or sinks. What does drainage basin mean? The name given to the study of lakes is limnology. The minerals are carried by the drainage basin to the mouth, and may accumulate there, disturbing the natural mineral balance. Accordant versus discordant drainage patterns. This type of water is r… Hydrologic units are defined to allow multiple inlets, outlets, or sinks. Drainage basin discharge = precipitation – evapotranspiration +/- changes in storage. water from rain converge or drain to a single point usually of lower elevation 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 source. 2. an area of…. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Water is continuously transferred between the atmosphere and the oceans. It lies west of the Continental Divide and extends from the boundary of Alberta and British Columbia into the Yukon near the Mackenzie Delta. Modern use of artificial fertilizers, containing nitrogen, phosphorus, and potassium, has affected the mouths of drainage basins. In a closed drainage basin, or endorheic basin, the water converges to a single point inside the basin, known as a sink, which may be a permanent lake, a dry lake, or a point where surface water is lost underground.[8]. The boundary of the drainage basin is called a drainage divide. However, soils containing clay can be almost impermeable and therefore rainfall on clay soils will run off and contribute to flood volumes. River basins geography myp gcse dp the shape of watersheds nature what is a river basin inter geography drainage basin hydrological system a what are the differences between Drainage Basins Definition Characteristics Lesson Transcript StudyWhat Is A River Basin QuoraWhat Are The Differences Between Catchment Area River Basin Watershed Mand Drainage QuoraKentucky Water Resources Research… Definition of drainage basin in the Definitions.net dictionary. Each drainage basin is separated topographically from adjacent basins by a perimeter, the drainage divide, making up a succession of higher geographical features (such as a ridge, hill or mountains) forming a barrier. In North America, this function is referred to as "watershed management". Because drainage basins are coherent entities in a hydro-logical sense, it has become common to manage water resources on the basis of individual basins. As water flows over the ground and along rivers it can pick up nutrients, sediment, and pollutants. drainage basin définition, signification, ce qu'est drainage basin: an area of land from which the rain flows into a particular river or lake, etc.. En savoir plus. Catchment topography and shape determine 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. Drainage basin, also called catchment area, or (in North America) watershed, area from which all precipitation flows to a single stream or set of streams. The climatic variables and the water and sediment discharge, water storage, and evapotranspiration may be measured; from these measurements, denudation rates and moisture and energy balances may be derived, each of which is useful in the consideration and understanding of landscape formation. Let us know if you have suggestions to improve this article (requires login). Size will help determine the amount of water reaching the river, as the larger the catchment the greater the potential for flooding. An example would be the area drained by the Ohio River would be the Ohio drainage basin. In endorheic bodies of standing water where evaporation is the primary means of water loss, the water is typically more saline than the oceans. A drainage basin is a naturally occurring extent of land which serves as a funnel to channel precipitation and excess water to a nearby river or stream. Corrections? Examples of such interstate compacts are the Great Lakes Commission and the Tahoe Regional Planning Agency. These have been…, The drainage basins of most European rivers lie in areas originally uplifted by the Caledonian, Hercynian, and Alpine mountain-building periods that receive heavy precipitation, including snow. For the human geography concept, see, Area of land where precipitation collects and drains off into a common outlet, International Journal of River Basin Management, International Network of Basin Organizations, "What is a watershed and why should I care? Nile Basin Initiative, OMVS for Senegal River, Mekong River Commission are a few examples of arrangements involving management of shared river basins. Drainage basin is a geographic term about rivers.It is also called catchment, catchment area, catchment basin, drainage area, river basin, and water basin.. A drainage basin is a tract of land drained by a river and its tributaries What is the boundary of a drainage basin called? Limnologists have used several criteria for the development of systems for classifying lakes and lake basins but have resorted particularly to the mechanisms that have produced lake basins. Meaning of drainage basin. Catch basins are made to redirect water away from another place in an attempt to stop flooding before it starts. It can flow directly into the river or go through tributaries (smaller rivers that flow into the bigger river) first. All water that falls on that land flows into one river. An extreme example of this is the Dead Sea. A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean. These polygons are made by drawing lines between gauges, then making perpendicular bisectors of those lines form the polygons. 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. This system is a closed system. Generally, topography plays a big part in how fast runoff will reach a river. The drainage basin, also known as the basin, or (in North America) the basin that pours all precipitation into a single torrent or a set of streams. Calculating the area between these curves and adding up the volume of water is time-consuming. A drainage catch basin is basically a storm drain for your backyard (or anywhere it is needed). Each drainage basin is separated topographically from adjacent basins by a ridge, hill or mountain, which is known as a water divide or a watershed. Commonly used to catch storm water runoff to be piped underground to some more desirable location (Note: your neighbors lawn should not be considered a more desirable location unless the objective is to get them to hate you). 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. The drainage basin includes all the surface water from rain runoff, snowmelt, hail, sleet and nearby streams that run downslope towards the shared outlet, as well as the groundwater underneath the earth's surface. Drainage basins are similar but not identical to hydrologic units, which are drainage areas delineated so as to nest into a multi-level hierarchical drainage system. Drainage basins connect into other drainage basins at lower elevations in a hierarchical pattern, with smaller sub-drainage basins, which in turn drain into another co… The discharge from a drainage basin depends on precipitation, evapotranspiration and storage factors. Below is a flow diagram of the drainage basin system:All rivers receive a water supply and the area of land this comes from is known as a drainage basin. In a strict sense, all drainage basins are hydrologic units but not all hydrologic units are drainage basins.[8]. This includes water from rain and melting snow. Find more similar words at wordhippo.com! Endorheic drainage basins are inland basins that do not drain to an ocean. But how does the water that falls on the ground get to the stream or river? What is a watershed and why should I care? For example, the total area drained by the Mississippi River constitutes its drainage basin, whereas that part of the Mississippi River drained by the Ohio River is the Ohio’s drainage basin. Management of such basins becomes the responsibility of the countries sharing it. ", "A Review of Earth Observation-Based Analyses for Major River Basins", "A grid-based distributed flood forecasting model for use with weather radar data: Part 1. Is continuously transferred between the atmosphere and the Tahoe Regional Planning Agency perpendicular what is drainage basin of those lines form the.. 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