What is runoff in hydrology definition?
runoff, in hydrology, quantity of water discharged in surface streams. Runoff also includes groundwater that is discharged into a stream; streamflow that is composed entirely of groundwater is termed base flow, or fair-weather runoff, and it occurs where a stream channel intersects the water table.
What is runoff explain?
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. Glaciers, snow, and rain all contribute to this natural runoff.
What is river runoff?
Runoff is the movement of landwater to the oceans, chiefly in the form of rivers, lakes, and streams. Runoff consists of precipitation that neither evaporates, transpires nor penetrates the surface to become groundwater.
What is runoff and infiltration?
Infiltration occurs when surface water enters the soil. The sponge soaks up the water until it can hold no more. At this point, the soil becomes saturated, but the excess water has to go somewhere. When this happens, we get overflow in the form of runoff, which is when surface water flows over land.
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 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.
What is another word for runoff?
What is another word for runoff?
| sewage | sewerage |
|---|---|
| exhalation | outpouring |
| emanation | effluence |
| efflux | pollution |
| seepage | overflow |
What is runoff 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 are the 2 types of runoff?
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: