Global Hazards -Weather

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  • Global Hazards -Weather
    • Extreme Weather
      • Precipitation
        • Drought
        • Flash floods
        • Rain
        • Snow
        • Snow
      • Australia
        • Cyclones
        • Drought
        • Average summer temp - 33
        • Highest temp - 51
      • UK
        • Flash floods
        • Average summer temp - 23
        • Highest temp - 38.5
    • Tropical Storms
      • How it forms
        • Deep ocean
        • 27 degrees +
        • Starts to spin (Coreolis effect)
        • Warm air from the sea 'feeds' the storm
      • Where do they form?
        • Between the two tropics
        • Not on the equator
    • El Nino and La Nina
      • El Nino
        • Drought in Australia
        • Trade winds weaken or reverse
        • Rain in South America
      • Pacific Ocean
      • La Nina
        • Strengthened version of normal
        • Strong trade winds
        • Floods in Australia
        • Droughts in South America
    • Case Study - Boscastle Flood
      • Cause
        • Heavy rain - 6 inches in 6 hours
        • V-shaped valley - quick run off
        • Impermeable rock
        • Confluence - Jordan, Paradise, Valency
        • Bridge too small - debris
      • Impact
        • Houses damaged
        • Coastal Pollution - cars and debris
        • 100 people rescued
        • Businesses close
      • Response
        • Air rescue
        • Replaced the bridge
        • Deepened the river bed by 6 feet
        • Raised the car park
        • Re-did the sewers
    • Case Study - Australia Drought
      • Cause
        • El Nino
          • Trade winds reverse
        • Global circulation
          • High pressure belt
      • Impact
        • Grass land destroyed
        • 8 million sheep died
        • Rural suicide rates grew
        • WIldfires - 8 people died
        • Less tourism
      • Response
        • Aussie Helpers
          • Food for animals
          • Fuel cards
          • Gave out $5 million
        • Desalinisation plant
          • Takes salt out of water
        • Income support form the governments

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