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Atmosphere/ Jetstream - PowerPoint PPT Presentation


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Atmosphere/ Jetstream. Exosphere - 500 km and beyond Outermost layer Very few air molecules No clear boundary between this layer and space. Thermosphere - 95km to 500 km Warmest layer of the atmosphere Reflects radio waves

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slide3

Exosphere- 500 km and beyond

  • Outermost layer
  • Very few air molecules
  • No clear boundary between this layer and space
slide4

Thermosphere - 95km to 500 km

  • Warmest layer of the atmosphere
  • Reflects radio waves
  • Lower layer is called the ionosphere, this is where auroras take place.
slide5

Mesosphere – 45 km to 95km

  • Coldest part of the atmosphere
slide6

Stratosphere – 10km to 45 km

  • Ozone layer located here
  • Little to no water vapor
  • Tropopause- (between strato and tropo)

Jet stream is located here

slide7

Troposphere – ground to 10km

  • Closest to the ground
  • 99% of all weather takes place here.
slide9

A wind current, which moves around Earth capturing and changing anything in its path.

  • If forms high in the tropopause, between two air masses of very different temperatures.
  • The greater the temp difference, the faster the wind blows in the jet stream.
  • This “river” of air can reach speeds up to 643.7 km/hr and be several hundred miles wide.
  • Usually form in the winter when there is a greater contrast in temp of cold air masses and warm air masses
  • Jet stream does NOT cause weather conditions, but exists because of certain weather conditions.