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- 1. Multiple Choice
Select all the natural causes of flooding
Relief
Deforestation
Precipitation
Geology
New houses and cities
- 2. Multiple Choice
What is this?
The Bradshaw model
River long profile
River Cross section
I don’t know, something about triangles
- 3. Multiple Choice
What factors could decrease the risk of flooding here?
Impermeable rock because it can absorb more water
Dry soil because it can hold more discharge decreasing surface run off
Woodland because trees can store water decreasing surface storage
steep slopes because the water can surface run off down them
- 4. Multiple Choice
What does the model show?
Cross profile of a river
drawing of a river
Random colourful triangles
The change in elements of a river down it’s course
- 5. Multiple Choice
Select all the hard engineering techniques
- 6. Multiple Choice
What is 1?
Peak rainfall
Peak discharge
Lag time
Falling limb
- 7. Multiple Choice
What is 2?
Rising limb
Rainfall (mm)
Lag time
Falling limb
- 8. Multiple Choice
What is 3?
Peak discarge
Time after storm starts (hours)
Base/normal flow
River discharge (cumecs)
- 9. Multiple Choice
What is 4?
Rising limb
Lag time
Falling limb
Peak rainfall
- 10. Multiple Choice
What is 5?
Lag time
River discharge (cumecs)
Peak discharge
Falling limb
- 11. Multiple Choice
What is 6?
Lag time
Time after storm starts (hours)
Peak rainfall
Peak discharge
- 12. Multiple Choice
What is 7?
Rainfall (mm)
Time after storm starts (hours)
Peak discharge
Rising limb
- 13. Multiple Choice
What is 8?
Rainfall (mm)
Peak rainfall
River discharge (cumecs)
Rising limb
- 14. Multiple Choice
What is 9?
Rainfall (mm)
Peak discharge
Falling limb
River discharge (cumecs)
- 15. Multiple Choice
This is a flashy hydrograph?
True
False
- 16. Multiple Choice
What is the lag time?
Time before the storm starts
Time between the peak rainfall and peak discharge
The amount of discharge
- 17. Multiple Choice
What is missing?
Groundwater flow- water flowing underground
Transpiration- water being lost from trees
Surface run off- water running off the land
Infiltration- water going into the soil
- 18. Multiple Choice
Where is Boscastle?
- 19. Multiple Choice
What are the 3 rivers that confluenec in Boscastle?
Valency
Thames
Paradise
Jordan
Tees
- 20. Multiple Choice
Why is Boscastle at risk to flooding?
It’s at the bottom of a valley
3 rivers confluence there
Impermeable shale rock sits beneath it
It has an Island
The river channel is very narrow
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