Bangladesh Flashcards

1
Q

What are the floods in Bangladesh like?

A

Huge by global standards, can inundate over 30% of the land mass at a time.

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2
Q

What is the average inundation of the landmass of Bangladesh?

A

18%

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3
Q

What percentage of the country have been affected by the floods?

A

75%

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4
Q

Why is Bangladesh so vulnerable?

A

75% of the country is 10m below sea level and 80% is classified as a floodplain.

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5
Q

Why is 80% of Bangladesh classified as floodplain?

A

it is principally a delta region of South Asia’s great rivers.

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6
Q

How often do floods occur in Bangladesh?

A

on a regular basis, but recent notable and catastrophic floods occured in 1988.

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7
Q

How often do catastrophic floods occur?

A

every 50 to 100 years.

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8
Q

How many people did the Bangladesh floods kill?

A

1,100

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9
Q

How much cropland was damaged?

A

2.2 million acres

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10
Q

How many people were displaced by the floods?

A

10.5 million

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11
Q

What happened to the transport links?

A

Highway connecting Dhaka to the rest of the country was flooded isolating the capital.

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12
Q

What role did the Brahmaputra and Ganges have?

A

caused flood by rising, they disgorged the water from seasonal wet monsoon rains and melting glaciers and snow in the Himalayas.

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13
Q

What were the deaths caused by?

A

Diarrhoea, drowning, landslides, snakebites and respiratory diseases.

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14
Q

How many caught dysentery or diarrhoea?

A

100,000 by 11 August

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15
Q

What happened to rice crops?

A

devastated TWICE that year, so farmers did not have time to recover their losses and replant

$290m damaged in initial floods.

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16
Q

What aid was given?

A

$150m, Saudi Arabia pledged $50million and 5 planes worth of food and medicine.

17
Q

Benefits of the flood action plan

A

a system of huge embankments along the coast and rivers reinforced by concrete.

Increase channel capacity and hydraulic radius.

Causes erosion downstream and prevent deposition.

18
Q

Negatives of the flood action plan

A

Causes erosion downstream and prevent deposition

Stops flood replenishing fields with nutrients and can stop rainwater escaping into fields.

19
Q

Solutions

A

Flood action plan

Improved drainage canals

SPARSO and flood satellite imaging systems

20
Q

What does SPARSO and flood satellite imaging systems do?

A

allow more warning by monitoring cloud cover, hydrographs and rainfall patterns across river basins