Runoff

Question 1

What is runoff?

Answer 1

The various ways in which water moves across the land.

Question 2

What are the 3 types of runoff?

Answer 2

-Surface run off
-Interflow
-Groundwater flow

Question 3

What is overland flow?

Answer 3

Occurs when precipitation hits the groups and flows over the surface of the land, typically when the ground is saturated or precipitation exceeds infiltration rates.

Question 4

What is interflow?

Answer 4

The lateral movement of water in the unsaturated zone, where the water is not yet completely saturated.
—> can augment surface run off + reach a stream quicker than groundwater flow.

Question 5

What is groundwater flow?

Answer 5

Parts of the rivers discharge that is provided by groundwater seeping into the river channel.
—> occurs in significant rainy seasons + little evaporation.

Question 6

What causes variation in runoff?

Answer 6

-Amount and intensity of rainfall
-Temperature
-Amount of vegetation
-Soil type
-Relief