Lesson 12 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

How is Bangladesh susceptible to coastal flooding?

A

subsidence: Isostatic readjustment is partially responsible but main reason clearance and drainage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is Bangladesh’s physical history?

A

islands used to be forested but now cleared to grow rice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How have Bangladesh protected against tides and storm surges?

A

Embankments built

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How have embankments caused problems?

A

prevented natural deposition of sediment which used to maintain the islands height but is n ow submerging so the island is at risk of flooding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

positives of mangroves?

A

stabilise coastline, protect against erosion
collect nutrient rich sediment
provide a nursery for fish

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Why are Bangladesh getting rid of mangroves?

A

25% being taken to shrimp farms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is happening to the mangroves in Bangladesh?

A

retreating up-to 200 meters a year (71%)

25% being taken to shrimp farms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What Typhoon happened in the Philippines in 2013?

A

Typhoon Haiyan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What category was typhoon Haiyan? (2)

A

5 (highest) - tropical storm

category 3 disaster (highest) - WHO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Characteristics of Typhoon Hiyan? (4)

A

wind 315km/h
6000+ dead
28,000 injuries
7m storm surges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Effects of Typhoon Hiyan? (3)

A

area turned into waste land
14m effected
6/43 damaged parts repaired

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How is Bangladesh susceptible to flooding? (4)

A

at risk from sea level rise (6-20mm)
40% of storm surges occur in Bangladesh
Increase risk of river flooding - wetter environment (disease spread),
Reduced farmland (salt contamination) Lower GDP
loss of mangroves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which Cyclone hit Bangladesh in 2007?

A

Cyclone Sidr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Characteristics of Cyclone Sidr?

A

10m storm surge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What category was Cyclone Sidr?

A

4 - tropical storm (240km/h winds)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Effects of Cyclone Sidr? (3)

A

$1.7b in damage
effected 3m households
2m job losses

17
Q

What are the characteristics of the 1953 North Sea Storm surge? (3)

A

sea level raised by 3m
flooding in Yorkshire and kent
happened at night time

18
Q

What are the effects of the 1953 North Sea Storm surge? (5)

A
32,000 evacuated
homes and farmland lost (flooding)
£1.2b in damage
307 dead
no flood warning systems
19
Q

What are the characteristics of the 2013 North Sea Storm surge?

A

largest storm surge took place 6.3m

20
Q

What are the effects of the 2013 North Sea Storm surge? (5)

A
1400 properties flooded
18,000 people evacuated
800,000 homes protected
better education+forecasting
£1.7b damage