Variations in temperature

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Troposphere

Temperatures of 15+ degrees at sea level decreasing to about -60 degrees by roughly 6.4 degrees every 1,000 meters gained.

This is due to energy transfer to the cooler air above by conduction, convection and reduction 

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Stratosphere

-60 degrees steadily increasing to temps around -30/-35 degrees due to an increase in solar radiation absorbtion by ozone 

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Mesosphere

Rapid decrease in temp to around -90 degrees due to the complete lack of dust particles to absorb solar radiation 

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Thermosphere

Increase in temp resulting from absorbtion of UV by atomic oxygen, constant rise in temp to +1,500 degrees

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Variations

  • Shortwave solar radiation is responsible for the majority of the atmosphere's energy
  • 24% of energy approaching reaches the Earth's surface 
  • Incoming radiation is absorbed by ozone, H20 and CO2 in the atmosphere
  • More of the incoming radiation is reflected by the atmosphere and the Earth's surface 
  • Energy reaching the Earth's surface is converted into heat energy and re-radiated as long wave radiation 
  • The stabalising of the Earth's temp in the recent past tells us that incoming shortwave radiation is exactly the same as outgoing longwave radiation 
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