1.4 Valley Profiles

Question 0

What is a graded profile?

Answer 0

A concave profile by erosion smoothing out irregularities in the valley floor

Question 1

The upper of a river has a steep profile and the lower course has a gentle gradient.

Answer 1

These results in different flows and processes

Question 2

What does a graded profile represent?

Answer 2

A state of equilibrium in balance with its environment

Reality- unlikely

Question 3

What is velocity?

Answer 3

The speed of flow

Question 4

What is discharge?

Answer 4

The volume of water

Question 5

What is the significance of smaller tributaries to the amount of velocity and discharge?

Answer 5

Increases it downstream

Question 6

The roughness of the river channel ______ downstream?

Answer 6

Decreases

Question 7

What causes disturbed turbulent flow upstream?

Answer 7

Large rock boulders

Question 8

What does a higher hydraulic radius mean?

Answer 8

A more efficient channel in carrying water

Question 9

What other factors than discharge can affect the size of a river channel?

Answer 9

River becoming deeper and narrower through resistant rock
Human work, altering, lined with concrete
Farm animals walking over riverbanks