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Energy Exchanges in the Atmosphere

Energy Exchanges in the Atmosphere. Atmosphere - blanket of gas that surrounds the earth (the air around us). Atmospheric Variables that cause weather conditions Temperature Pressure Air Movement Visibility Humidity.

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Energy Exchanges in the Atmosphere

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  1. Energy Exchanges in the Atmosphere

  2. Atmosphere - blanket of gas that surrounds the earth (the air around us)

  3. Atmospheric Variables that cause weather conditionsTemperaturePressureAir MovementVisibilityHumidity

  4. Weather - a description of the atmospheric variables at a given place during a short period of time

  5. Where does most weather occur? In the TROPOSPHERE which is the LOWEST PART OF THE ATMOSPHERE

  6. Atmospheric Variables

  7. Temperature Variationsaffected byInsolationAltitudeCloudsPollution

  8. Pressure Variations

  9. What causes air Pressure?Gravity

  10. Differences in Pressure are due to:TemperatureAltitudeHumidity

  11. TemperatureWhat is heavier warm air or cold air?COLD AIR

  12. COLD AIR is more dense and wants to sink causing an increase in pressure

  13. AltitudeAs altitude increases air pressure DECREASES

  14. Because a smaller amount of air above you weighs less

  15. Effect ofMoisture Content orHumidityon Pressure

  16. Opposite of what you normally expect

  17. As the amount of Water Vapor in the air INCREASES, the weight of the air DECREASES

  18. Because: water vapor molecules weigh less than dry air molecules

  19. Measuring Air PressureAir Pressure is measured using a BAROMETER

  20. Atmospheric Pressure is measured in MILLIBARS and INCHES

  21. Aneroid Barometer

  22. ISOBAR-Line of equal air pressure.

  23. Isobars are used ON WEATHER MAPSThey help show us the location of HIGHS & LOWS

  24. Air Movement

  25. Wind -the horizontal movement of air

  26. Atmospheric Transparency - a measure of the ability of the atmosphere to pass light

  27. Dust, Smoke, Water Droplets, etc. in the air are calledAEROSOLS /Condensation Nuclei

  28. They directly affect Transparency which means, as the stuff in the air increases the amount of light that can pass through decreases.

  29. Ingredients of Weather8min video

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