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Runoff, in hydrology, quantity of water discharged in surface streams. Runoff includes not only the waters that travel over the land surface and through channels to reach a stream but also interflow, the water that infiltrates the soil surface and travels by means of gravity toward a stream channel.
- The Editors of Encyclopaedia Britannica
- Type of precipitation (rain, snow, sleet, etc.)
- Rainfall intensity.
- Rainfall amount.
- Rainfall duration.
Oct 19, 2023 · Runoff occurs when there is more water than land can absorb. The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. Runoff can come from both natural processes and human activity. The most familiar type of natural runoff is snowmelt.
Surface runoff is defined as precipitation (rain, snow, sleet, or hail) that reaches a surface stream without ever passing below the soil surface. It is distinct from direct runoff, which is runoff that reaches surface streams immediately after rainfall or melting snowfall and excludes runoff generated by the melting of snowpack or glaciers.
Mar 15, 2020 · RUNOFF was a document formatter written by Jerry Saltzer for CTSS, described in a 1964 memo alongside its companion editor command TYPSET and subsequently integrated into the operating system. It appears in both the 1965 and 1969 editions of the CTSS manual at page AH.9.01.
Runoff. The measurement of the flow of water in a stream, usually expressed in cubic feet per second; the net effect of storms, accumulation, transpiration, melt, seepage, evaporation, and percolation.
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Apr 1, 2013 · The effort here focuses on the related question of how runoff begins (and ends). This study builds upon decades of foundational research on streamflow generation [see review by Beven, 2006] and rainfall-runoff modeling [see review by Loague, 2010 ].
