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Atmosphere
 

Atmosphere

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Atmosphere Atmosphere Presentation Transcript

  • THE ATMOSPHERE Environmental Science Mr. Wasley
  • LAYERS OF ATMOSPHERE
  • TROPOSPHERE• 4-12 miles height• As altitude INCREASES, the density of gases DECREASES- the air therefore becomes thinner.• As altitude INCREASES, the temperature DECREASES• All weather occurs in the troposphere• Transition boundary is called the tropopause
  • STRATOSPHERE• 31 miles in height• Temperature INCREASES with height because radiation is absorbed from the ozone layer. The UV rays make the stratosphere hotter.• The increase in temperature causes no convection to occur so the gases in the stratosphere do not mix• The boundary is called the stratopause
  • MESOSPHERE• 53 miles in height• Less gases are here like oxygen, less UV rays are absorbed• As altitude INCREASES, temperature DECREASES• Thesmall amount of gases here are enough to slow down meteorites- they burn up at this layer• The boundary is called the mesopause
  • THERMOSPHERE• 430 miles in height• Theair is very thin, the molecules are far apart from each other. Therefore, it’s easier for the Insolation and UV radiation to heat up those molecules.• Asaltitude INCREASES, temperature INCREASES- as high as 3,600 C• the average speed of the molecules is high, but the total amount of energy is low so it would still feel cold to our skin
  • ATMOSPHERE COMPOSITION• Nitrogen= 78.08%• Oxygen= 20.95%• Argon• Carbon dioxide
  • WATER VAPOR• varies greatly in quantity in terms of time and location• Dustparticles and ozone do as well, in terms of the troposphere