Geography - weather

• Weather


  day to day conditions of the atmosphere
• Climate 


  This is the usual/ expected weather calculated over 30 years
• Extreme weather hazard 


  Unusual and harms people or damages property, it is exceptionally beyond average
• Prolonged rainfall 


  Rainfall over long periods from late winters
• climate change 


  is long term changes in the earths atmosphere due to increase in average atmospheric temperatures.
• Natural climate change 


  Happened before humans such as volcanic activity, solar output, changes in the earths orbit.Humans have no control
• Human Causes climate change

  the greenhouse effect such as fossil fuels, agriculture , deforestation
• polar cell

  low pressure
• feral cell

  high pressure
• Hadley cell

  low pressure
• tropical storm beggining conditions

  warm seas,humid weather normally 27 degrees or more