DRAINAGEBASIN

Drainage basin

A drainage basin or watershed is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point at a lower elevation, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean. For example, a tributary stream of a brook which joins a small river, which is tributary of a larger river is thus part of a series of successively smaller area but higher elevation drainage basins . Similarly, the Missouri and American rivers are each part of their own drainage basins/watersheds and that of the Mississippi River.

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drainage basin

Noun

  1. A topographic region in which all water drains to a common outlet; a watershed.


The above text is a snippet from Wiktionary: drainage basin
and as such is available under the Creative Commons Attribution/Share-Alike License.

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