Climate

1
Climate
2
Weather

• The conditions in the atmosphere at any given
  time.
• Climate
• The average weather in an area over a period of
  time

3
Factors affecting Climate

• Latitude Determines the amount of direct sun
  light an area will get and how air circulates

4
Factors affecting Climate

• Wind Currents
• 90 and 30 degrees away from the equator have
  areas of high pressure and are dry
• 60 degrees and 0 the equator have areas of low
  pressure and have more precipitation

5
Ocean Currents
Warm Currents Wetter climates Milder winters
Cold currents Dry Climate
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Increase elevationDecrease temperature
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Altitude

• Increase in altitude has the same affect as
  increasing latitude

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Increase ElevationIncrease Precip.
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Seasons

• The tilt of the earth and how light hits the
  earth
• Distance from equator determine the seasons

10
Topography Rain Shadow
11
Urban Build up

• Built up areas absorb and retain more heat from
  the sun
• They also produce heat as they consume energy

12
Volcanoes

• Volcanic dust and aerosols can reflect sun-light
  cooling the earth
• 1816 Year with out a summer Mt Tambour erupted
• CO2 and other green house
• gases can warm
• the Earth
• http//www.volcanoweather.owlinc.org/

13
Green House Gasses

• Green house gasses absorb and trap heat in
  Earths atmosphere
• With out the green house effect the planet would
  be about -2 degrees F instead of about 59 degrees
  F.
• Water Vapor - evaporation
• CO2 comes from Combustion, respiration,
  decomposition (1)
• Methane- digestion of cellulose in cow and
  termite guts, swaps and dumps (25)
• N2O Nitrous oxide, burning fossil fuels (296)
• CFCs- Refrigerants, solvents and propellants

14
Where do Greenhouse gases come from?