Runoff (hydrology)

{{Short description|Flow of water across the earth}} '''Runoff''' is the flow of water across the earth, and is a major component in the hydrological cycle. Runoff that flows over land before reaching a watercourse is referred to as ''surface runoff'' or ''overland flow''. Once in a watercourse, runoff is referred to as ''streamflow'', ''channel runoff'', or ''river runoff''. Urban runoff is surface runoff created by urbanization.

==Background== {{excerpt|Hydrological cycle}}

==Surface runoff== {{excerpt|Surface runoff}}

===Urban runoff=== {{excerpt|Urban runoff}}

==Channel runoff== {{excerpt|Channel runoff}}

==Model== {{excerpt|Runoff model (reservoir)|files=0}}

===Curve number=== {{excerpt|Runoff curve number}}

==References== {{reflist}}

Category:Hydrology