Tropical storms


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Tropical storms

  1. 1. Tropical Storms While watching the images, identify the primary and secondary effects of tropical storms
  2. 16. Tropical Storms <ul><li>Definition: </li></ul><ul><ul><li>Tropical storms are intensive, low pressure weather systems known in different parts of the world as hurricanes, cyclones, typhoons </li></ul></ul>
  3. 17. Describe the distribution of tropical storms (4)
  4. 18. Origins <ul><li>Form over oceans between the Tropics of Cancer and Capricorn </li></ul><ul><li>Over warm ocean waters </li></ul>
  5. 19. Tropical Storms <ul><li>Forms over ocean with temperatures of at least 27 ° C </li></ul><ul><li>Water at least 60 m deep </li></ul><ul><li>Form in hottest times of the year (May-Nov in northern hemisphere, Nov - Apr in southern hemisphere) </li></ul><ul><li>Low pressure (air pressure low) </li></ul>
  6. 20. What are the natural processes that allow tropical storms to form? <ul><li>BBC Link </li></ul><ul><li>Create a 5 stage flowchart during the explanation to explain how tropical storms form. </li></ul>
  7. 22. Affected by disasters Killed by disasters What is the difference – why are the patterns different between the two maps?
  8. 23. MEDC case study: Hurricane Katrina <ul><li>Hurricane Katrina </li></ul><ul><li>29 th August 2005 </li></ul><ul><li>USA (formed in Bahamas first, made landfall as Category 3 hurricane in USA) </li></ul><ul><li>Worst affected = Florida, Louisiana (especially New Orleans) </li></ul><ul><li>175mph winds </li></ul><ul><li>80% of city evacuated </li></ul><ul><li>Breached levees (flood defences) with its storm surge </li></ul><ul><li>1200 drowned </li></ul><ul><li>600 died from disease </li></ul><ul><li>1million homeless </li></ul><ul><li>$90.9billion damages (costliest disaster in US history) </li></ul><ul><li>Google timeline </li></ul>
  9. 24. Jamie’s American Road Trip <ul><li>Impacts of Hurricane Katrina on People and the Environment. </li></ul>
  10. 25. LEDC case study: Cyclone Nargis <ul><li>Worst natural disaster in Burma </li></ul><ul><li>It began as an intense tropical depression on April 27th 2008 in the Bay of Bengal. </li></ul><ul><li>Meteorologists initially thought that the storm would track over Bangladesh </li></ul><ul><li>However, the storm changed direction and headed towards Burma, where it made land over the Irrawaddy delta in the south of the country on May 2nd. </li></ul><ul><li>Category 3/4 storm on the Simpson–Saffir scale </li></ul><ul><li>215 km/hr winds </li></ul><ul><li>In some places 600mm of rain fell </li></ul><ul><li>146000 people were killed, or reported missing </li></ul><ul><li>$10 million damage occurred </li></ul><ul><li>75% of hospitals and clinics were badly destroyed or damaged </li></ul><ul><li>Diarrhoea, dysentery and skin infections afflicted the survivors who were crammed into monasteries, schools and other buildings after arriving in towns already under pressure before the cyclone. </li></ul>
  11. 26. Case Study Mind Map <ul><li>Create a mind map that compares Hurricane Katrina and Cyclone Nargis. </li></ul><ul><li>Focus upon: </li></ul><ul><ul><li>Location </li></ul></ul><ul><ul><li>Primary effects </li></ul></ul><ul><ul><li>Secondary effects </li></ul></ul><ul><ul><li>Impacts of people </li></ul></ul><ul><ul><li>Responses </li></ul></ul>OCR Geography p136-143 photocopies Use for comparison of case studies
  12. 27. Task <ul><li>Individually produce a leaflet about hurricane Katrina </li></ul><ul><li>Pages 124 of Geog.GCSE </li></ul><ul><li>Headings: </li></ul><ul><ul><li>Impact on people </li></ul></ul><ul><ul><li>Impact on the economy (anything to do with jobs or money) </li></ul></ul><ul><ul><li>Impact on the environment </li></ul></ul><ul><ul><li>What was done to lessen the impact of Hurricane Katrina? </li></ul></ul><ul><ul><li>Why do people continue to live in areas at risk from tropical storms? </li></ul></ul><ul><ul><li>PRINT OFF AND STICK IN BOOK </li></ul></ul><ul><li>If finished use BBC Bitesize Weather and Climate tests </li></ul>
  13. 28. How to prepare for a hurricane <ul><li>Create a leaflet aimed at Florida residents. </li></ul><ul><li>The aim of the leaflet is to advise local residents how they should prepare for a hurricane </li></ul><ul><li>Must also be understood by non-English speakers (Florida has a high Hispanic population) So think about images. </li></ul><ul><li>Think about: </li></ul><ul><ul><li>Outline the possible effects of hurricanes: </li></ul></ul><ul><ul><ul><li>Storm surge </li></ul></ul></ul><ul><ul><ul><li>Wind speed </li></ul></ul></ul><ul><ul><li>Evacuation plans – what to pack </li></ul></ul><ul><ul><li>Emergency supplies at home </li></ul></ul><ul><ul><li>Protecting homes and businesses from damage and flooding </li></ul></ul><ul><ul><li>Protecting against looting </li></ul></ul><ul><ul><li>Search for ‘prepare for hurricanes’ </li></ul></ul>