Geography Bangladesh Flooding Case Study
- Created by: Liv
- Created on: 09-04-15 15:41
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- LEDC flooding- Bangladesh 1998
- Physical causes of the flood
- Most of Bangladesh is located on a flood plain, and on the delta of the Ganges river.
- 70% of the country is less than 1 metre above sea level
- Snow melt from the Himalayas
- Heavy monsoon rain- soil became saturated, surface run off.
- Tropical storms- caused increase in river discharge and infiltration
- Human causes of the flood
- deforestation in the Himilayas- decreased infiltration through roots, which increased rever discharge.
- Urbanisation on the flood plains.
- Poor man made levees collapsed and increased river discharge.
- Building dams in India- more sediment deposited in Bangladesh- causing river beds to rise and overflow.
- Effects of the 1998 flood
- Over 57% of Bangladesh's land was flooded
- Over 1300 people killed
- 7 million homes were destroyed.
- 2.5 million people left homeless
- 7 million homes were destroyed.
- Shortage of food and water
- Diseases spread quickly e.g Cholera and diarrohea
- Responses
- Short Term
- Boats were sent out to rescue those in danger.
- Emergency supplies e.g water, food, tents, medicines sent from foreign aid
- Rescuers helped to repair and rebuild houses and repaired sewage problems- which reduced the spread of disease
- Long Term
- Reduced deforestation in the Himalayas and Nepal.
- Government are to build 6 large dams in Bangladesh- cost $40 million and take around 40 yrs to complete
- 5000 food shelters to accomodate the population
- 350km of embankment built at 7m high to reduc e flooding along powerful rievrs
- The Flood Action Plancontains 26 action points which would provide a long term solution to the country's flooding problems.
- Short Term
- Physical causes of the flood
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