river basin - meaning and definition. What is river basin
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What (who) is river basin - definition

AREA OF LAND WHERE PRECIPITATION COLLECTS AND DRAINS OFF INTO A COMMON OUTLET, SUCH AS INTO A RIVER, BAY, OR OTHER BODY OF WATER
River basin; Drainage area; Catchment; Catchment basin; Water Catchment; Water catchment; Water basin; Water catchment area; Drainage Basin; Total catchment management; Catchment management; River basins; River Drainage Basin; River Basin; Water catchments; Sub-watershed; Subwatershed; Watershed (ecology); River Basins; Rain catchment; Catchment water; Catchment area (hydrology); Catchment area (river); Watershed (hydrology); Surface water basin; Catchment of water; Drainage basins; Impluvium (hydrology); Watershed region; River catchment
  • terrain map]] of the [[Latorița River]]'s drainage basin in [[Romania]]
  • dendritic]] drainage basin. The dashed line is the main water divide of the [[hydrography]] basin.
  • hypoxic, or dead zone]] in the [[Gulf of Mexico]].
  • [[Digital terrain model]] of the Latorița River's drainage basin in [[Romania]].
  •  Major [[continental divide]]s, showing how terrestrial drainage basins drain into the oceans. Grey areas are [[endorheic basin]]s that do not drain to the oceans
  • Drainage basin of the [[Ohio River]], part of the [[Mississippi River]] drainage basin
  • [[Endorheic basin]] in [[Central Asia]]

river basin         
(river basins)
A river basin is the area of land from which all the water flows into a particular river.
N-COUNT
catchment         
(catchments)
In geography, catchment is the process of collecting water, in particular the process of water flowing from the ground and collecting in a river. Catchment is also the water that is collected in this way. (TECHNICAL)
N-COUNT
Catchment         
·noun A surface of ground on which water may be caught and collected into a reservoir.

Wikipedia

Drainage basin

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. 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 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 a drainage divide.

A drainage basin's boundaries are determined by watershed delineation, 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 unit code, which are drainage areas delineated so as to nest into 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.

Examples of use of river basin
1. The greatest flooding danger includes much of the Mississippi River basin, the Ohio River basin, the lower Missouri River basin, Pennsylvania, New Jersey, most of New York, all of New England and portions of the West, including Colorado and Idaho.
2. Eighty percent of Kandahar‘s population lives along the river basin.
3. Its programmes have helped boost economic development and alleviate poverty for inhabitants in the river basin.
4. United Nations experts say populations in the river basin may double by mid–century.
5. The Raba stream is not the only source of sewage malfunctions in the Yarkon River Basin.