Runoff Variations And The Flood Hydrograph Flashcards
1
Q
Factors that influence flows within a drainage basin
A
Vegetation and land use
Soil type and depth
Shape of land
Rainfall
Climate
2
Q
River discharge
A
Volume of water passing through the river at a given time
3
Q
A hydrograph
A
Shows how river discharge changes as a result of a period of heavy rain
4
Q
Rising limb shows
A
The river rising
5
Q
Peak discharge
A
Shows the the highest point the river reaches
6
Q
Falling limb
A
Shows the river decreasing with volume
7
Q
Lag time
A
Is the time between peak rainfall and peak discharge
8
Q
Flashy hydrographs
A
Rivers that show a large discharge in a short amount of time
9
Q
How does water enter a river
A
Surface runoff
Throughflow
Groundwater flow
10
Q
Surface runoff
A
Is the fastest route to a river and creates a flashy hydrograph
