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Catchment areas may be established for the provision of services. For example, a school catchment area is the geographic area from which students are eligible to attend a local school. When a facility's capacity can only service a specific volume, the catchment may be used to limit a population's ability to access services outside that area. [11]
The list of drainage basins by area identifies basins (also known as "catchments" or, in North American usage, "watersheds"), sorted by area, which drain to oceans, mediterranean seas, rivers, lakes and other water bodies.
Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, [3] [4] and impluvium. [ 5 ] [ 6 ] [ 7 ] 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.
Catchment hydrology is the study of hydrology in drainage basins. Catchments are areas of land where runoff collects to a specific zone. This movement is caused by water moving from areas of high energy to low energy due to the influence of gravity .
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.
Other terms that are used to describe a drainage basin are catchment, catchment area, catchment basin, drainage area, river basin, water basin and watershed. The drainage basins in South Africa do not correspond with the Water Management Areas, and have the
The Kaveri (also known as Cauvery) is a major river flowing across Southern India.It is the third largest river in the region after Godavari and Krishna.The catchment area of the Kaveri basin is estimated to be 81,155 km 2 (31,334 sq mi) and encompasses the states of Tamil Nadu, Karnataka, Kerala, and the union territory of Puducherry.
Jayakwadi is one of the longest earthen dams in Asia. Its height is about 41.30 metres (135.5 ft) and length of about 10 kilometres (6.2 mi) with a total storage capacity of 2,909 million cubic meters. The total catchment area of dam is 21,750 km 2 (8,400 sq mi). There are 27 water gates for the dam.