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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]
It includes oceanic sea drainage basins which have hydrologically coherent areas (oceanic seas are set by IHO convention). The oceans drain approximately 83% of the land in the world. The other 17% – an area larger than the basin of the Arctic Ocean – drains to internal endorheic basins.
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 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 zone in Nattai, Australia containing drinking water. 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.
In shipping usage, a port's hinterland is the area that it serves, both for imports and for exports. The term is also used to refer to the area around a city or town. More generally, hinterland can refer to the rural area economically tied to an urban catchment area. The size of a hinterland can depend on geography, or on the ease, speed, and ...
Catchment area [ edit ] Joseph Brant Hospital has a huge geographic catchment area in the Halton and Hamilton-Wentworth Regions; about a quarter million people reside in this area which includes parts of Flamborough Township, the City of Hamilton , and Stoney Creek and all of Burlington and Waterdown.
[7] [8] The hospital serves the states of Utah, Nevada, Idaho, Montana, and Wyoming, [9] yielding an enormous geographic catchment area of approximately 400,000 square miles. [5] The hospital is one of the only pediatric hospitals in the region.