drainage basins

What is a drainage basin?

An area of land where precipitation collects and drains into a common outlet.

How do small drainage basins affect water transfer?

Small basins often lead to rapid water transfer.

What impact does drainage density have on water transfer?

A high drainage density speeds up water transfer.

How do impermeable rocks influence overland flow?

Impermeable rocks encourage rapid overland flow.

What role does urbanisation play in water transfer?

Urbanisation encourages rapid water transfer.

How do steep slopes affect water transfer rates?

Steep slopes lead to rapid water transfer.

What effect does saturated soil have on overland flow?

Saturated soil results in rapid overland flow.

How does basin size affect water transfer?

Large basins result in relatively slow water transfer.

What is the effect of permeable rocks on groundwater flow?

Permeable rocks encourage slow transfer by groundwater flow.

What happens during heavy rain in relation to infiltration capacity?

Heavy rain may exceed the infiltration capacity of vegetation, leading to rapid overland flow.

How do forests influence water transfer?

Forests slow down water transfer due to interception.

What impact do gentle slopes have on water transfer?

Gentle slopes slow down water transfer.

How does dry soil affect water transfer?

Dry soil soaks up water and slows down its transfer.

What is the impact of light rain on water transfer?

Light rain will transfer slowly.

What is the primary difference between drainage basin A and drainage basin B in terms of drainage density?

Basin A has high drainage density with lots of rivers, while Basin B has low drainage density.

How does the land steepness affect the discharge in drainage basins?

Steeper land typically results in more surface runoff and flashy discharge.

What factors contribute to Basin A having a higher peak discharge compared to Basin B?

Basin A has impermeable rock and not much vegetation, leading to faster runoff.

What is the average discharge of the world's largest river?

The average discharge of the world's largest river is 200,000 m³/s.

What impact does urbanization have on drainage basins?

Urbanization can increase flood risk by altering natural runoff patterns.

What type of rock is likely found in areas with high drainage density?

Impermeable rock is often found in areas with high drainage density.

How does vegetation influence water infiltration in drainage basins?

More vegetation typically promotes greater infiltration, leading to subdued discharge.

What environmental condition is indicated by the presence of a lag time in peak discharge?

A longer lag time suggests greater absorption and reduced immediate runoff.

What is a drainage basin?

An area of land that drains into a river system.

What is the watershed?

A line that separates drainage basins.

What is a confluence?

The point where one river joins another.

What diagram represents processes in the water cycle?

Olau diagram.

What is the largest watershed that separates Chile and Brazil?

The Amazon Basin.

What role does vegetation play in the drainage basin system?

Vegetation, such as grassland and clover pasture, affects water retention and contributes to the local climate.

What process does evaporation represent in the water cycle?

The transformation of water from liquid to vapor.

What is percolation in the context of the water cycle?

The process of water movement through soil and rock layers.

What is surface storage in the water cycle?

The temporary holding of water on the surface, such as in lakes or reservoirs.

How do certain biomes affect global air circulation?

Different biomes influence atmospheric patterns and climate through their unique vegetation and surface properties.