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Endorheic basin
Closed drainage basin that has no outflow / From Wikipedia, the free encyclopedia
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An endorheic basin (/ˌɛndoʊˈriː.ɪk/ EN-doh-REE-ik; also endoreic basin and endorreic basin) is a drainage basin that normally retains water and allows no outflow to other, external bodies of water (e.g. rivers and oceans); instead, the water drainage flows into permanent and seasonal lakes and swamps that equilibrate through evaporation. Endorheic basins are also called closed basins, terminal basins, and internal drainage systems.
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Endorheic regions contrast with open lakes (exorheic regions), where surface waters eventually drain into the ocean.[1] In general, water basins with subsurface outflows that lead to the ocean are not considered endorheic;[2][3][4] but cryptorheic.[5] Endorheic basins constitute local base levels, defining a limit of the erosion and deposition processes of nearby areas.[6] Endorheic water bodies include the Caspian Sea, which is the world's largest inland body of water.[7]