Case Study: 2 eg. of flood mitigation

Question 1

Which are the two drainage basins?

Answer 1

New south wales and pakistan

Question 2

Conclusion

Answer 2

Pakistan only focuses on immediate mitigation
They don’t have a sufficient warning system
Their levees and dykes don’t work
Their government only cares about economic growth and only provides farmers with water
Poor people live close to the river, the government doesn’t take a lot of care of those areas
DIFFERENTLY
NSW
invests in long-term mitigation- relocates roads and focuses on green infrastructure. They do not have war crimes and political conflicts which worsen their situation. The government funds projects. Can afford tubes under the river

Question 3

How is new south whales faced with floods?

Answer 3

In 2021 there was heavy rainfall after 18 months of bushfires.
30/37 river catchments experiences flooding
Town of moore recieves 50mm of rain yearly
- due to flood it was 150mm daily
- power outages
-houses swept away
-food shortage
- crop losses

Question 4

What was the immediate mitigation done by new south whales?

Answer 4

• around 1000 flood warnings
• face masks provided (contamination)
• disaster relief granted (2 mil total)
• state commonwealth (24 mil granted
• rescue boats
  -helicopters

Question 5

What was long-term mitigation done by new south whales?

Answer 5

grey: dams, sea walls, redirected pipes, water treatment plants, leaky barriers
Green: afforestation, plains, spoils
Turned into a sponge city (vegetation rooftops, permeable concrete)

Question 6

specific projects done in New South whales

Answer 6

Fairfield golf course
- turned into a floodplain
Bellambi gully improvement
- channel now flows into the lagoon

Question 7

How is Pakistan faced with floods?

Answer 7

• august
  1/9 of the population was affected (190 million)
• inadequate response
• 60 hours of continuous rainfall

Question 8

What type of mitigation in pakistan took place?

Answer 8

short term only

Question 9

discuss the short term mitigation that has been done in pakistan

Answer 9

in punjab:
- armies used boats and helicopters and saved 30,000 people
- farms were provided with water from the indus river
- camps were set up for refugees
- levees and dykes were built but immediately destroyed

Question 10

What additional issue does pakistan face on top of floods?

Answer 10

Deforestation from the Taliban so they can trade
- more surface runoff
- flooding
-unpermeable soil
- less absorption
Mudslides are created

Also
housing of the poor is along the river, as the ground is less permeable,additional building of houses decreases permeability