Water on the Land Case Studies

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How many people were killed in the Mozambique floods?
800
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How many schools were closed due to the Mozambique floods?
630
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How many people were made homeless by the Mozambique floods?
1 million
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How much did the British government send in aid to Mozambique?
£20 million
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What was South Africa's short term response to the Mozambique floods?
5 Sea King Helicopters
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How many people were rescued from the air in the Mozambique floods?
10,000
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The international response to the Mozambique floods was _____.
Slow
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What were the long-term responses to the Mozambique floods?
Disaster management plans, hazard mapping and sustainable development.
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Which river burst its banks, leading to the Mozambique floods?
River Limpopo
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Urbanisation in which country caused the Mozambique floods?
South Africa
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How many inches of rain were there before the Mozambique floods?
17 inches in 4 days
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Which tropical cyclone worsened the Mozambique floods?
Cyclone Eline
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Where is the River Skerne located?
Darlington, County Durham
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What were the aims of the soft engineering at the River Skerne?
To restore the river, increase biodiversity and reduce the risk of flooding.
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What did the re-meandering of the River Skerne involve?
Cutting a new channel and filling the old one with sediment.
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What was done to the banks of the River Skerne?
They were re-profiled.
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How many trees were planted by the community of Darlington?
20,000
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How much soil was moved from the River Skerne's floodplain when it was lowered?
20,000m cubed
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What were the benefits of the River Skerne's scheme?
Biodiversity increase, landscape quality improvement and reduced risk of flooding.
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What percentage of the community of Darlington approved the River Skerne Project 1 year after?
82%
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What was the rain that flooded Cumbria in 2009 described as?
"Of biblical proportions"
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How much rain fell over Seathwaite in a 24 hour period?
314mm
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In which village is there a confluence that contributed to the flooding?
Cockermouth
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Which type of rainfall causes flooding?
Antecedent rainfall
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What were the short term effects of the Cumbrian Floods?
Streets closed, schools closed, damage to properties, pavements and objects.
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How deep was the water in Cockermouth High Street?
8ft
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How many shops and homes were destroyed by the Cumbrian floods?
1000
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How many people died in the Cumbrian Floods?
1, PC Bill Barker
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How many bridges were destroyed on the River Cocker?
8
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What were some temporary measures taken in the Cumbrian floods as short term responses?
Pop-up shops, temporary bridge built within 24 hours.
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How many helicopters were summoned for the Cumbrian rescue effort?
5
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What forces were called in to Cumbria as a short term response?
RNLI and RAF
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How many people were rescued from the Cumbrian floods?
200
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What was the maximum cost of the Cumbrian floods?
£100 million
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How many bridges had to be surveyed after the Cumbrian floods?
1800
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How long is the Mississippi River?
300,000km
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What percentage of the USA does the Mississippi River provide water for?
50%
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Why does the Mississippi River need to be managed?
Previous floods in 1927 and 1973 caused devastation in New Orleans, the largest river port in the world.
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What has been done to the levees of the Mississippi River?
2,500 miles of levees have been reinforced, raised and strengthened.
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How high is the St Louis Levee?
15.8m
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How was the St Louis Levee proven to be effective in 1993?
The level of the Mississippi rose to 15.05m at St Louis, but the levee didn't give way.
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How much has the Mississippi been shortened by?
145 miles (12% of the river)
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What did meander straightening involve for the Mississippi?
Meanders were cut through their necks to shorten the river and help excess water escape the system.
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How many dams have been built along the Mississippi and its tributaries?
230
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What are diversionary spillways?
Floodways that have been built to take in water at times of flood.
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Where does the Bonnet Care floodway protect from flooding?
New Orleans
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What other strategies are used on the Mississippi?
Dust-pan dredging, aforestation, concrete matressing and flood walls.
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Why did work begin on the Elan Valley reservoirs in 1893?
The Industrial Revolution had caused an area of deficit in Birmingham.
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What was the population of Birmingham in 1893?
650,000
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Why were the Elan and Claerwen Valleys in eastern Wales chosen to supply Birmingham with water?
High average rainfall, impermeable bedrock and high ground.
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How many reservoirs are there in the Elan Valley?
6
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How much electricity is created by hydroelectric turbines in the Elan Valley reservoirs?
4.2 megawatts at one time.
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How much did the Elan Valley dam cost to build?
£50million
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How many occupants of the Elan Valley had to move elsewhere when it was built?
100
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Which important buildings were demolished for the Elan Valley reservoirs to be built?
A school and three manor houses.
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What did the reservoirs reduce?
Water-borne diseases such as diarrhoea and chollera.
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How were the Elan Valley reservoirs created?
Flooding, which destroyed the habitats of a large population of wildlife.
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How big is the Elan Valley reservoir estate?
70 square miles
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What title does the Elan Valley Estate have in Wales?
The most important area for land birds.
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What is the project done to enhance the biodiversity of deciduous trees in the Elan Valley Estate?
Elan Valley Estate Woodland Biodiversity Project
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Card 2

Front

How many schools were closed due to the Mozambique floods?

Back

630

Card 3

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How many people were made homeless by the Mozambique floods?

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Card 4

Front

How much did the British government send in aid to Mozambique?

Back

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Card 5

Front

What was South Africa's short term response to the Mozambique floods?

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