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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 ...
Surface runoff is defined as precipitation (rain, snow, sleet, or hail [5]) that reaches a surface stream without ever passing below the soil surface. [6] 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 ...
Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed; Runoff or run-off, a stock market term; Runoff voting system, also known as the two-round system, a voting system where a second round of voting is used to elect one of the two candidates receiving the most votes in the first round
The runoff from the land flows into streams and rivers and discharges into the ocean, which completes the global cycle. [26] The water cycle is a key part of Earth's energy cycle through the evaporative cooling at the surface which provides latent heat to the atmosphere, as atmospheric systems play a primary role in moving heat upward.
In hydrology, run-on refers to surface runoff from an external area that flows on to an area of interest. A portion of run-on can infiltrate once it reaches the area of interest. Run-on is common in arid and semi-arid areas with patchy vegetation cover and short but intense thunderstorms. In these environments, surface runoff is usually ...
North Carolina is one of only nine states that conduct runoffs in primary elections, a practice that began in the Jim Crow era of the American South.
Surface water can be measured as annual runoff. This includes the amount of rain and snowmelt drainage left after the uptake of nature, evaporation from land, and transpiration from vegetation. In areas such as California , the California Water Science Center records the flow of surface water and annual runoff by utilizing a network of ...
Here, a runoff can be called if no candidate wins more than 30% of the vote — but it doesn’t happen automatically. The second-place candidate has to request a runoff to set the wheels in motion.