Flood Case Studies for OCR Geography A2 Level

Floods

2009 Cumbria: River MEDC

Trigger

Heavy rainfall

Background

Trailing cold front

Saturated soils

Full capacity lakes

1 in 100 year flood defences not enough

Impact

Social

1 policeman dies on bridge collapse

2200 properties flooded

Low pop density

Economic

40% businesses of tourism experience cancellation

30 remain closed

Environmental

Habitat flooded

Cattle die

But positives in the silt that is deposited

Responses

Government provide £1m for clean up

Infrastructure repair

Network rail sets up temp station at Workington

Embankments raised

More regular dredging

Colombo 2016: River Kelani LEDC

Trigger

3 days of prolonged rainfall

350mm in basin

Background

Drain and ditch poorly maintained

Housing and industry built on marshland

Impact

Social

Mosquito breading epidemic dengue fever

172,000 displaced

 

Economic

Small business have no cash reserve to re stock and likely no insurance either

Environmental

Dead fauna left to rot in streets

Responses

temporary camps, schools, religious buildings, community centres to house displaced

the Government and local organisations are providing cooked food, water and access to healthcare

Ministry of Health, Nutrition and Indigenous Medicine distributing chlorine solution to help people clean their flood-affected homes

Pakistan, 2010: River Indus Basin LEDC

Trigger

Monsoon

Background

70% live near river

Illiteracy and lack of gov support means lack of flood awareness

Deforestation so monsoon cannot infiltrate as easily

Impact

Social

1,600 dead

1.2m houses destroyed

11,000 schools closed

Some still displaced until 2012

Economic

1.2m livestock killed

6m poultry

Environmental

Sediment washed in irrigation channels

Erosion of fertile soil

Crops lost- biodiversity reduced

Responses

Oxfam help 70,000 people with water, sanitation and kitchen units

UK gov helps with 1m people given skills and jobs training

Pakistan government pretty useless, corruption and governance mechanism ineffective at dealing with disaster

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