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Topic: Moisture in the Atmosphere

Topic: Moisture in the Atmosphere. Water enters the Atmosphere by. A) ---. Mainly from Ocean 70% Earth ’ s surface. Factors Effecting Evaporation Rate. a) Surface Temperature Increases  ---. b) Surface Area Increases  ---. Evaporation. Evaporation. Puddle A. Puddle B.

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Topic: Moisture in the Atmosphere

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  1. Topic: Moisture in the Atmosphere

  2. Water enters the Atmosphere by A) --- Mainly from Ocean 70% Earth’s surface

  3. Factors Effecting Evaporation Rate a) Surface Temperature Increases  ---

  4. b) Surface Area Increases  --- Evaporation Evaporation Puddle A Puddle B

  5. c) Humidity increases  --- Air is filled with water, no more evaporation. Evaporation Lake

  6. d) Wind Speed Increases -> --- Lake

  7. B) --- Evaporation and Transpiration = Evapotranspiration

  8. Water is found in all phases in the atmosphere • Solid – Clouds, snow • Liquid – Clouds, rain • Gas - Water vapor

  9. How do we measure moisture in the Atmosphere

  10. Humidity • ---

  11. Relative Humidity • --- • ---

  12. Dew Point • ---

  13. Condensation What happens when the air temperature and dew point are the same?

  14. Sublimation / Deposition FROST SNOW

  15. Tools used to find Dew Point & Relative Humidity • --- • ---

  16. Measuring Relative HumidityToday you need your ESRT out

  17. Dew Point & Relative Humidity Charts Best Friend - pg 12

  18. The “Dry Bulb” = Air Temp • Don’t let it fool you. It is just a thermometer. 20°C

  19. The “Wet Bulb” • Has a little wet booty tied to the bottom. • Gets cool when water evaporates. 12°C Wet Booty

  20. 14°C 20°C 12°C 8°C A Dry Day… • A lot of moisture will evaporate. • The wet bulb will be a lot cooler than the dry bulb. 20°C Difference between wet bulb & dry bulb is 12 °C.

  21. A Humid Day… • A little bit of moisture will evaporate. • The wet bulb will not be much cooler than the dry bulb. 20°C 14°C Difference between wet bulb & dry bulb is 6 °C.

  22. Dry-bulb temperature = air temperature. 20 °C

  23. 14 °C

  24. Subtract (the difference) between the dry bulb and wet bulb

  25. 20°C 14°C 20-14=6

  26. 18°C 16°C 18-16=2

  27. Put it all together 20°C 8°C 20-8=12 Relative Humidity = 11%

  28. 14°C 10°C 14-10=4 Relative Humidity = 60%

  29. The Dew Point Chart works the same way 14°C 10°C 14-10=4 Dew Point = 6°C

  30. Try These. % °C % °C % °C

  31. % °C % °C °C % °C °C

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