Lo 8-heat,temp,moist-powerpoint

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Helgers, ESC 101

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Lo 8-heat,temp,moist-powerpoint

  1. 1. Earth’s Atmosphere andEarth’s Atmosphere and OceansOceans Lecture Outline #8Lecture Outline #8
  2. 2. TemperatureTemperature  Measure of average kinetic energy ofMeasure of average kinetic energy of individual atoms or molecules in aindividual atoms or molecules in a substance (or in the atmosphere)substance (or in the atmosphere)
  3. 3. Thermal Energy/HeatThermal Energy/Heat  Total amount of energy in a substanceTotal amount of energy in a substance  Heat is that energy moving from oneHeat is that energy moving from one substance (with higher temp) to anothersubstance (with higher temp) to another
  4. 4. 4 Laws of Thermodynamics4 Laws of Thermodynamics
  5. 5. Sensible Heat vs. Latent HeatSensible Heat vs. Latent Heat  Look at water’s phase changesLook at water’s phase changes
  6. 6. Types of Heat TransferTypes of Heat Transfer
  7. 7. Sun’s EnergySun’s Energy
  8. 8. Electromagnetic RadiationElectromagnetic Radiation SpectrumSpectrum
  9. 9. Fate of Incoming Solar RadiationFate of Incoming Solar Radiation InsolationInsolation
  10. 10. Albedos of Various SurfacesAlbedos of Various Surfaces  Blacktop road : 5 – 10%Blacktop road : 5 – 10%  Fresh snow or ice : 80 – 95%Fresh snow or ice : 80 – 95%  Old snow: 45 – 70%Old snow: 45 – 70%  Meadow: 5 – 25%Meadow: 5 – 25%  Water: Varies significantlyWater: Varies significantly
  11. 11. Greenhouse EffectGreenhouse Effect
  12. 12. Global Energy BudgetGlobal Energy Budget  How is the solar radiation that reaches earthHow is the solar radiation that reaches earth distributed? Or….distributed? Or….  What are the factors that change theWhat are the factors that change the amount of radiation received or retained in aamount of radiation received or retained in a location?location?
  13. 13. Variations in InsolationVariations in Insolation  http://www.netaxs.com/~mhmyers/cdjpgs/seasons.jpghttp://www.netaxs.com/~mhmyers/cdjpgs/seasons.jpg http://www.weatherpages.com/variety/diurnal.jpg
  14. 14. Global Energy BudgetGlobal Energy Budget  What’s a budget?What’s a budget?  Energy In – Energy Out = StorageEnergy In – Energy Out = Storage
  15. 15. Changes in Global Energy BudgetChanges in Global Energy Budget http://http://volcanoes.usgs.gov/Imgs/Jpg/Shishaldin/Mcgimsey_04231999_med.jpgvolcanoes.usgs.gov/Imgs/Jpg/Shishaldin/Mcgimsey_04231999_med.jpg http://www.atmosphere.mpg.de/media/archive/4785.jpg http://energyconcepts.tripod.com/energyconcepts/chimney.jpg
  16. 16. Patterns of Temperature VariationPatterns of Temperature Variation
  17. 17. Coastal vs. Inland TemperaturesCoastal vs. Inland Temperatures
  18. 18. Temperatures as Affected byTemperatures as Affected by LandformsLandforms
  19. 19. Windward vs. LeewardWindward vs. Leeward Temperatures on ContinentTemperatures on Continent
  20. 20. Influence of Cloud Cover onInfluence of Cloud Cover on TemperatureTemperature
  21. 21. Changes in Average TemperaturesChanges in Average Temperatures Throughout YearThroughout Year
  22. 22. IsothermsIsotherms

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