Hydrographs Flashcards
1
Q
What is river discharge?
A
The amount (volume) of water passing a given point in a given moment in time
2
Q
What factors cause discharge to vary?
A
Rainfall, relief, rock type and human land use
3
Q
What is a hydrograph?
A
A graph which shows how river discharge changes in response to a precipitation event
4
Q
What is lag time?
A
The time between the peak rainfall and peak discharge
5
Q
What is peak discharge?
A
Maximum discharge
6
Q
What is the rising limb?
A
Shows the increase in discharge
7
Q
What is the falling limb?
A
Shows the return of discharge to normal
8
Q
The characteristics of a flashy hydrograph are?
A
Steep rising limb, high peak discharge, short lag time
9
Q
The characteristics of a subdued hydrograph are?
A
Gentle rising limb, low peak discharge, long lag time
