Physical Geography - River courses and profiles Flashcards
What are the 3 (main) courses of a river
- The Upper Course
- The Middle Course
- The Lower Course
aka 1. youthful stage, 2. mature stage, 3. old stage
What is seen in the
Long profile of a river
We can see the entire drainage basin from its highest point to its lowest point.
it shows the entire length of the river from its upper course to its lowest course
What is seen in the
Cross profile of a river
We can see the width/side view across the channel of any 1 river from one bank to the other bank at each course/stage
The characteristics of each developmental stage or course:
I have a broad, U-shaped valley, my channel is deep. At what stage/course am I?
Youthful stage/Upper course
The characteristics of each developmental stage or course:
I have a narrow, V-shaped valley, it is steep sided, my channel is shallow. At what stage/course am I?
Mature stage/Middle course
The characteristics of each developmental stage or course:
I have a wide valley, and a flat flood plain. My river is relatively shallow. At what stage/course am I?
Old stage/Lower course