Earth's Atmosphere

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Earth's Atmosphere

  1. 1. Atmosphere The surrounding air of the EarthVisit www.worldofteaching.com
  2. 2. Orange Model
  3. 3. Layers of the atmosphere• There are 4 layers in the atmosphere• They are the troposphere, mesosphere, thermosphere, and stratosphere
  4. 4. Troposphere • This is the layer that is closest to the surface of the earth • It’s elevation ranges from 0 to 10 km • Most weather phenomenon that humans experience are in this layer • Tropopause: upper limits of troposphere
  5. 5. Stratosphere• This layer sits on top of the troposphere – It’s elevation ranges from 10 km to around 25 km• This layer contains the ozone layer, – Absorbs UV rays = increase temperature – which protects us from harmful sunlight• Jet Stream: high speed winds – Airplanes conserve fuel• Stratopause: upper limits of stratosphere
  6. 6. Mesosphere • This layer is above the stratosphere • It’s elevation ranges from 25 to 100 km • Most meteorites burn up from friction. • UV is not absorbed = -100°C temperatures • Mesopause: upper limits of mesosphere
  7. 7. Thermosphere• This is the highest layer of the atmosphere• It’s height ranges from 100 to 400 km• small meteorites burn up• northern lights occur (aurora borealis)• Can reach 3000°C – Thin air heats quickly• Also called the ionosphere
  8. 8. Composition of Air • There are many different types of gasses in the atmosphere • They include nitrogen, oxygen, argon, carbon dioxide and other noble gasses • The gas that is most abundant is nitrogen
  9. 9. What does thetemperature do in eachlayer of the atmosphere?
  10. 10. How is insolation affected bythe layers of theatmosphere?•Which layers have a higheralbedo?
  11. 11. How is electromagnetic radiation affected by the layers of theatmosphere?

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