Bangladesh Flashcards Preview

Rivers* > Bangladesh > Flashcards

Flashcards in Bangladesh Deck (6)
Loading flashcards...
1

Describe a flood in 2007 in Bangladesh.

  • 2.2 million hectares of damaged crop land 
  • Highway from Dhaka to the rest of bangladesh was flooded causing isolation.
  • Bangladesh Health Department reported Diarrhoes, landslides and drowning 
  • $290 million initial lossof crops
  • 900+ bridges destroyed
  • 1500 km of road destroyed

2

Planning and manangement in Bangladesh;

What physical defences were put in place along Bangladeshes rivers? 

  • 5000 flood shelters to accomodate whole population
  • 7 large dams to store water ($30 -$40 million)
  • World bank to contribute $400 million to rehabilitate embankments on 17 islands
  • Flood Action Plan (funded by the world bank) levees which are setback from the river to protect from ersoive power and fitted with sluices to reduce flow.

3

What warning systems have Bangladesh installed? 

  • 1972 Flood Forecasting and warning systems
  • 85 flood monitorng stations providing real time info

4

What long term management techniques have Bangladesh used? 

Reducing deforestation in Himalayas and Nepal 

5

What physical factors make Bangladesh vunerable to flooding?

  • Cyclones and hurricanes enerting the bay of Bengal causes storm surges
  • Heavy rainfall outside the monsoon season
  • Himalayan snow melt (spring)
  • Monsoonal rain 
  • saturated soil
  • Ganges, meghna and Brahmaputra converge causing a high discharge

6

What human factors make Bangladesh susceptable to flooding? 

  • Urbanisation populated (900 per km2) 2.7% population growth/annum
  • Deforestation of hiumalayas (reduced interception rates) 
  • Lack of international investmetn form other countries
  • LEDC little money availible to spend on flood protection
  • Internatioal loans and debts
  • 1980's 100,000 tube wells + 20,000 deep wells for drinking water - redued water table.