Channel And Valley Characteristics Flashcards
1
Q
What are cross profiles
A
They show how a river and its valley change shape from the upper course to the lower course
2
Q
What is the long profile of a river
A
The long profile shows how the gradient (steepness) of a river changes from its source to its mouth. It reflects the river’s journey through the upper, middle, and lower course.
3
Q
How does the gradient change downstream
A
It decreases
4
Q
How does discharge change downstream
A
Discharge increases downstream as more water from tributaries and surface runoff joins the river.
5
Q
How does sediment size change down stream
A
Sediment size decreases downstream due to erosion processes like attrition, which break down particles into smaller, smoother pieces.
