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2847490
Bangladesh Floods 2004
Descripción
A-level physical geography case study of flooding in an LEDC.
Sin etiquetas
aqa
alevel
geography
physical geography
bangladesh
floods
ledc
Mapa Mental por
prizinor zero (p
, actualizado hace más de 1 año
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Creado por
helen.rebecca
hace casi 9 años
Copiado por
prizinor zero (p
hace casi 9 años
26
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0
Resumen del Recurso
Bangladesh Floods 2004
Location and facts
A small, low lying Asian country
An LEDC
Bordered by India and Myanmar (Burma)
Population: 158 million
Impacts
Transport
Airports, roads and railways were destroyed
This meant that it was very difficult to transport aid and food resources to those affected by the flooding
11,000 km of roads were destroyed
Economic
Cost of damage to schools and hospitals: $7bn
Main food crop, rice, was destroyed
Shipping from the main port was disrupted
Over 400 factories closed
Social
600 people died as a direct result of the flooding
750 people died from other causes linked to the flooding
30 million were left homeless
100,000 in the capital (Dhaka) had diarrhoea
60% of Bangladesh was submerged
In 2006, half the population lived below the poverty line
1/4 million had dirty water
500,000 cattle were killed
Causes
Physical
70% of Bangladesh is less than 1m above sea level
Monsoon rainfall is concentrated into a few months
When the ground is saturated, surface run off is very high
35cm of rain fell in 1 day (13th September)
High temperatures causes rapid snow melt in the Himalayas
2 big rivers (Ganges and Brahmaputra) run through Bangladesh
Coastal tropical storms can prevent flood water escaping to the sea
The river can spread quickly across flat land
Silt is brought down by the river and raises river beds, decreasing river capacity
The Bay of Bengal is a funnel shape and gets shallower towards the coast
Bangladesh experienced its heaviest rain in 50 years
Human
Deforestation has occurred in the Himalayas
Building has happened on floodplains, which increases surface run off
Global warming is causing glaciers in the Himalayas to melt and sea levels to rise
Responses
Short term
Food supplies, medicines and blankets were distributed
The UN launched an appeal for $74m but only 20% had arrived by September
Water aid provided water purification tablets
Long term
Authorities are encouraging people to build their homes on raised mounds of land
Food shelters have been built and flood warning systems have been established
Embankments have been built
The world bank gave a 5 year loan to help with repairs
70,000 children were helped by school boats
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