Climatic Hazards
- 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
- Primary
- 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
- Primary
- What can be done?
- MEDC
- Hose pipe ban or no baths
- LEDC
- Wells and taps
- MEDC
- Tropical Storms
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