Flooding Flashcards

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1
Q

Valley where Boscastle is situated

A

Valency Valley

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2
Q

Amount of rain in Boscastle after 5 hours

A

5 inches

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3
Q

Causes of the Boscastle flood

A

Old sewage and drainage systems
Lack of flood control system
Cars blocked under the low bridge

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4
Q

Amount of rainfall in Boscastle during 24 hours

A

200mm

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5
Q

Size of Boscastle drainage basin

A

small - 452KM

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6
Q

Rise in Boscastle river levels after an hour

A

2m

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7
Q

Number of cars swept away by Boscastle flood

A

116

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8
Q

Number of homes destroyed by Boscastle flood

A

58 homes

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9
Q

Percentage of Boscastle economy regarding tourism

A

90%

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10
Q

Value of tourism lost due to the flood

A

£25,000

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11
Q

Insurance claims during Boscastle flood

A

£15 million

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12
Q

Year of Bangladesh floods

A

2004

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13
Q

Percentage of Bangladesh living less than 2 meters below sea level

A

70%

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14
Q

80%

A

% of Bangladesh on a flood plain and delta

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15
Q

Physical causes of Bangladesh flood

A

Monsoon rain and snowmelt travelling down the Himalayas via the Ganges river

Built on a delta made up of 53 rivers

Silt deposited in river

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16
Q

Number of rivers that make up the Bangladesh River

A

53

17
Q

Human causes of the Bangladesh floods

A

Deforestation

Ganges diverted for irrigation

120,000 wells built causing subsidence of 2.5 cm/year

18
Q

How many people were killed by the Bangladesh floods?

A

800

19
Q

11’000

A

People marooned by the Bangladesh floods

20
Q

Number of relief centres created in the aftermath of the floods

A

700

21
Q

Number of people made homeless by the 2004 Bangladesh floods

A

36 million

22
Q

$7 billion

A

Amount of damage to Bangladesh infrastructure due to the 2004 flooding

23
Q

Year of the boscastle flood

A

2007