The River Eden Flashcards
1
Q
Describe the location of the River Eden
A
- NW England between Pennines and Lake District
- Flows from source in Pennines to Carlisle
2
Q
Characteristics of Eden Basin
A
- higher than average national rainfall 2800mm due to orographic rainfall
- steep relief and narrow basin so reduced lag time
- high is impermeable and low is permeable
- sits at confluence of Eden, Caldew and petteril
3
Q
Land use changes?
A
- 30% increase in cattle from 2000 to 2009, grazing and trampling
- 10,000 homes built
- deforestation , only 10% is vegetated
- Appleby football club is landzoned to stop flooding
- Warcorp MOD firing range means 24,000 areas of land is compacted
- climate change increase rainfall by 35% in 2080
4
Q
Physical causes of the Carlisle flood (8th Jan 2005)
A
- in late December, 15% of annual rainfall fell in just 36 hours
- storm force winds of 90 mph felled trees
- peak discharge of 1500 cumecs compared to average of around 50m/s
5
Q
Human causes of flood
A
- inadequate flood defences only managed 1048 cumecs
- urbanisation increased impermeable surfaces
6
Q
Short term impacts of floods
A
- 3 died
- 6000 rehoused
- 1,600 homes flooded costing £100 million
- industrial estates flooded such as Rosehill damaging 325 businesses
7
Q
Long term impacts
A
- reappraisal of flood defences to cost £20 million and take 3 years
- intangible social affects someone committed suicide
- small businesses failed
8
Q
A
