Stream

Uncommon card · No. 85082

A stream is a continuous body of surface water flowing within the bed and banks of a channel. The channel is a watercourse, although the watercourse may be seasonally or periodically dry. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. A long, large stream is usually called a river, while a smaller, less voluminous, and more intermittent stream is known as a creek or tributary, among other names. The flow of a stream is controlled by three inputs – surface runoff (from precipitation or meltwater), daylighted subterranean water, and surface groundwater (spring water). The surface and subterranean water are highly variable between periods of rainfall. Groundwater, on the other hand, has a relatively constant input and is controlled more by long-term patterns of precipitation. The stream encompasses surface, subsurface and groundwater fluxes that respond to geological, geomorphological, hydrological and biotic controls...

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