What does runoff mean?
Definition of runoff
(Entry 1 of 2) 1 : a final race contest or election to decide an earlier one that has not resulted in a decision in favor of any one competitor. 2 : the portion of precipitation on land that ultimately reaches streams often with dissolved or suspended material.
What does the political term run off mean?
From Wikipedia the free encyclopedia. Runoff voting can refer to: Two-round system a voting system used to elect a single winner whereby only two candidates from the first round continue to the second round where one candidate will win.
What does runoff mean for science?
Runoff is nothing more than water “running off” the land surface. Just as the water you wash your car with runs off down the driveway as you work the rain that Mother Nature covers the landscape with runs off downhill too (due to gravity). Runoff is an important component of the natural water cycle.
What is another word for runoff?
| sewage | sewerage |
|---|---|
| exhalation | outpouring |
| emanation | effluence |
| efflux | pollution |
| seepage | overflow |
What is an example of runoff?
Runoff is defined as excess water draining away from land or buildings. The overflow of water that drains off of your driveway is an example of runoff. … The runoff of nitrates is poisoning the lake.
What causes a runoff?
Runoff: Surface and Overland Water Runoff
When rain falls onto the earth it just doesn’t sit there it starts moving according to the laws of gravity. A portion of the precipitation seeps into the ground to replenish Earth’s groundwater. Most of it flows downhill as runoff.
Where does runoff end up?
And now when it rains the water (often called runoff or stormwater) runs off roofs and driveways into the street. Runoff picks up fertilizer oil pesticides dirt bacteria and other pollutants as it makes its way through storm drains and ditches – untreated – to our streams rivers lakes and the ocean.
What happens during runoff in the water cycle?
Runoff is the water that is pulled by gravity across land’s surface replenishing groundwater and surface water as it percolates into an aquifer or moves into a river stream or watershed.
What does runoff mean in geography?
The sum of all the water flowing over the drainage basin’s surface is called runoff. It is made up of streamflow which is flow through permanent river channels and overland flow or surface runoff.
What is runoff process?
Runoff can be described as the part of the water cycle that flows over land as surface water instead of being absorbed into groundwater or evaporating. Runoff is that part of the precipitation snow melt or irrigation water that appears in uncontrolled surface streams rivers drains or sewers.
What is runoff in agriculture?
noun. the portion of rainfall that runs over agricultural land and then into streams as surface water rather than being absorbed into ground water or evaporating. pollution of the lagoon from pesticides contained in agricultural runoff from the surrounding area.
How do you use runoff in a sentence?
- In the spring nearby Granite Falls roars with mountain runoff.
- Much of the runoff comes from farm fields in the spring.
- Make sure that the gutters channel the runoff to the downspouts.
- The two top finishers will meet in a runoff May 7.
- Now no one is a cinch to reach the runoff.
What are the 2 types of runoff?
- Surface Runoff: It is that portion of rainfall which enters the stream immediately after the rainfall. …
- Sub-Surface Runoff: ADVERTISEMENTS: …
- Base Flow:
What is the opposite of runoff?
Opposite of to break free from confinement or control. remain. stay.
What are the different types of runoff?
There are three major types of runoff depending on the source: surface flow interflow and base flow.
What causes overland flow?
What is direct runoff?
Water that flows over the ground surface directly into streams rivers or lakes. Also called storm runoff.
What are the effects of runoff?
How does runoff affect the environment?
In what two ways is runoff harmful to human beings?
Sediment can block sunlight from reaching underwater grasses and suffocate shellfish. Stormwater runoff can push pesticides leaking fuel or motor oil and other chemical contaminants into rivers and streams. Chemical contaminants can harm the health of humans and wildlife.
What causes street flooding?
California is a flood-prone state. … And storms commonly cause local urban flooding because inadequate drainage systems and impermeable surfaces—such as streets and parking lots—allow stormwater to pond quickly and deeply.
What is in urban runoff?
Urban runoff carries contaminants such as litter food human & animal waste automobile fluids industrial pollutants fertilizers and pesticides to the beach creating health risks for people killing marine life and contributing to localized flooding and beach closures.
What is runoff in civil engineering?
Runoff can be described as the part of the water cycle that flows over land as surface water instead of being absorbed into groundwater or evaporating. It thus represents the output from the catchment in a given unit of time.
What is runoff in the water cycle examples?
River runoff occurs when water falls so quickly that the river bank can no longer hold water. Thus water spills over the river bank flooding adjacent land. Eventually water will infiltrate the soil flow downstream to eventually reach the ocean or be lost to evapotranspiration.
What is the difference between runoff and groundwater?
The main difference between groundwater and runoff is runoff refers to water that stays on the Earth’s surface while groundwater is located…
What is an aquifer in the water cycle?
What is runoff quizlet?
Runoff. the occurrence of surplus liquid (as water) exceeding the limit or capacity. Watershed. a ridge of land that separates two adjacent river systems. Divide.
What is meant by runoff in irrigation?
The fraction of rainfall that flows over the landscape from higher to lower elevations is known as runoff. Runoff is usually associated with negative implications such as erosion water loss etc. It can however be used for the surface irrigation of agricultural crops during rainfall events.
What causes urban runoff?
What is runoff and infiltration?
Is runoff the same as discharge?
The data in the reports of the Geological Survey on surface water represent the total fluids measured. Thus the terms discharge streamflow and runoff represent water with the solids dissolved in it and the sediment mixed with it. Of these terms discharge is the most comprehensive. … Runoff.
Which condition would create the most runoff?
Light gentle precipitation is more likely than heavy rain to end up as runoff. Low-lying areas often located near streams that develop from filled-in marshes.
What causes farm runoff?
agricultural runoff can occur because of improper management of animal feeding operations plowing excessively poorly executed application of pesticides irrigation water and fertilizer. As agricultural runoff enters bodies of water it can have negative impacts on the environment.
How do you stop fertilizer runoff?
Phrasal verb: RUN OFF
What is the meaning of the word RUNOFF?
Runoff | Definition of runoff
Runoff Meaning