Climatic Hazards

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  • Created by: idk_elxo
  • Created on: 03-05-16 13:58
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  • Climatic Hazards
    • Tropical Storms
      • What they need to form
      • Case Study - Hurricane Katrina, New Orleans (MEDC)
      • They form in the hottest time of the year
        • North - May to November
        • South - November to April
      • Stages of how they form
        • 1. Warm sea causes evaporation
        • 2. Warm, damp air spirals upward
        • 3. Air rises cools and condenses - Causes torrential rain
        • 4. Wind spirals up to 300 km/h
        • 5. Low pressure in the eye of the storm
      • Effects
        • Primary
          • Very strong winds
          • Flooding from intense rainfall
          • Storm surge - Wall of water
        • Secondary
          • Buildings destroyed
          • Land and mud slide
          • Communication down
          • Water/ medical supplies disrupted
    • Droughts
      • Lack of water or rainfall for a long period of time.
      • Case Study - Ethiopia, Sahel
      • What causes a drought
        • Unusually hot temperatures
        • Often occur where rainfall is seasonal
        • 30 degrees south or north of the equator
      • Effects
        • Primary
          • Lack of drinking water for people, animals or crops
          • Disease spreading
          • Wildfires
          • Hosepipe ban
        • Secondary
          • Death
          • War over access of water
          • Pressure on available grazing land
          • Live stock become diseased and die
      • What can be done?
        • MEDC
          • Hose pipe ban or no baths
        • LEDC
          • Wells and taps

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