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National Weather Service Shreveport srh.noaa/shv

National Weather Service Shreveport www.srh.noaa.gov/shv. The Atmosphere. Layers. Bun. Mayonnaise. Lettuce. Tomato. Hamburger. Bun. Atmosphere. Layers. Thermosphere. Mesosphere. Stratosphere. Troposphere. Earth. Exosphere. Exosphere.

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National Weather Service Shreveport srh.noaa/shv

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  1. National Weather Service Shreveport www.srh.noaa.gov/shv The Atmosphere

  2. Layers Bun Mayonnaise Lettuce Tomato Hamburger Bun

  3. Atmosphere Layers

  4. Thermosphere Mesosphere Stratosphere Troposphere Earth Exosphere Exosphere

  5. Temperature layer in the atmosphere can be remembered using these prefixes • Tropo – means turning • Strato- means spreading out • Meso- means middle • Thermo- means heat • Exo- means outside

  6. First layer of the Atmosphere • Troposphere (0-10km)– the layer of the atmosphere nearest the Earth. - called troposphere because convection seems to turn the air over. - contains 80% of the water vapor present in the atmosphere. - temperature is highest in the ground level and decreases at 6.5 0C for each kilometer you rise.

  7. Second layer of the Atmosphere • Stratosphere( 10-50km) - clear dry layer of the atmosphere where the *ozone is found. * absorbs radiation that is harmful to life. - temperature increases as you go up the stratosphere

  8. Third Layer of the Atmosphere • Mesosphere (50-90km) - air is extremely thin. - contains less than 0.1% of the atmosphere’s mass. - temperature decreases as you rise.

  9. Fourth Layer of the Atmosphere • Thermosphere ( 90km and up) - as the altitude increases air becomes less dense. - air is very hot because molecules absorb a certain type of solar radiation. - temperature increases as you rise.

  10. Fifth Layer- Exosphere • The exosphere is the highest layer of the atmosphere. • The exosphere extends to 10,000 km above the Earth's surface. • The atmosphere here merges into space in the extremely thin air. • This is the area where many satellites orbit the Earth.

  11. Layers of the Atmosphere • Troposphere • Lowest Layer • This is where we live • 8 to 12 miles in height • Weather occurs • Temp decreases with height • Stratosphere - Second lowest layer - Temp increases with height - Ozone (03) layer - Absorbs most of the damaging ultraviolet sunlight (UV-B) • Mesosphere - From ~30 to 53 miles up • - Temp decreases - Majority of meteors burn up • Thermosphere - Upper atmosphere 53 to ~430 miles up • - Very few molecules Still would feel cold Ozone Layer

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