Case Studies

• How did Hurricane Katrina form?

  - Sea temperature over 27°C and rotating winds over the ocean
• How did Katrina form originally?

  Hurricane Katrina originated from a tropical wave that moved off the west coast of Africa on August 8, 2005.
• Where did Katrina move to?

  Tropical depression started in the Bahamas then moved to the gulf of mexico where the water was very warm and then the hurricane became stronger.
• What category hurricane was Katrina?

  Category 3
• Hurricane Katrina wind speeds?

  200 km/h
• How did Katrina increase between August 26 and 28?

  Katrina underwent rapid intensification, growing from a Category 3 to a Category 5 hurricane. At its peak, the storm had sustained winds of 175 mph (280 km/h) and a minimum central pressure of 902 millibars
• How many people did Hurricane Katrina redistribute?

  1 million people
• How many people did Katrina kill?

  1800
• What was exposed and intensified?

  Racial tensions
• How many jobs were lost?

  230,000 jobs lost
• How many people left without electricity?

  3 million
• How many homes destroyed?

  300,000
• Give some economic impacts (oil)

  Katrina damaged or destroyed 30 oil platforms
• Whats the estimated total economic impact?

  above 150 billion$
• What % of New Orleans was evacuated?

  70-80%
• Who provided relief after Katrina?


  - American Red Cross

  - UN

  - Kuwait

  - India provided tarps, blankets and hygiene kits and an air force plane provided 25 tonnes of relief
• What did Missispi and Louisiana do?

  Declare states of emergency
• How much money did the US gov provide for home rebuilding?

  $16 billion
• How did the UK 2022 Heatwave start?

  The Azores High a persistent high pressure dome effect over the UK
• What increased the heatwave?

  Climate Change and human enhanced greenhouse effect
• Why didn't the cool winds descale the hurricane?

  The jet stream, which usually brings cooler air and weather systems, was positioned further north, allowing high pressure to dominate over the UK.
• What exacerbated the heatwave?

  dry soil
• A social consequence of heatwave?

  Surge in hospitalizations due to heatstroke
• How may people died directly due to the heatwave?

  5
• How many properties damaged by fire?

  41
• How may homes without power on 19th july?

  15,000
• The 2022 heatwaves were associated with a total of ______ excess deaths in England and heat exposure is estimated to cost the UK economy£ ______- ____ million per year

  The 2022 heatwaves were associated with a total of 2,985 excess deaths in England and heat exposure is estimated to cost the UK economy £260-300 million per year
• enviromental consequences of heatwave?

  dry waterfalls, wildfires and deceased river flow
• What was cancelled?


  Flights from heathrow airport cancelled because runway melted
• What was issued?


  Red warning
• ___________ Bridge was wrapped in ____ to stop it from ___________ (UK Heatwave)

  Hammersmith Bridge was wrapped in foil to stop it from overheating
• What ban did the UK gov introduce?

  Hose pipe water ban to conserve water
• Some rails ______ _____

  Some rails painted white
• What new plan did the UK gov create?

  National Heat Risk Strategy for the UK
• What was deployed?


  Rapid response team deployed to assess and repair damage to transportation
• What was the magnitude of the Nepal earthquake?

  7.8
• What boundry did the Nepal earthquake occur at?

  convergent collision
• How deep was the focus (Nepal)?

  8 km deep
• How far was the epicentre from the capital?

  60km NW from Kathmandu
• How many people died? (nepal)

  9k