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4nfiedler
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  • 1. Clouds and precipitation http://www.richhoffmanclass.com/chapter 4.html
  • 2. Adiabatic Temperature Changes and Expansion and Cooling  Temperature change  Dry adiabatic rate  Heating or cooling of saturated air  Wet adiabatic rate  Slow cooling by the adding of latent heathttp://www.physicscentral. http://www.kidsgeo.com/geography-com/experiment/physicsat for-kids/0070-adiabatic-temperature-home/bottle.cfm changes.php
  • 3. Orographic Lifting  Land masses makes air flow over it  Rainiest places are the cause of this  Most moister is lost by the time the air reaches the other sidehttp://www.waterencyclopedia.co https://earthscience-in-the-m/Ce-Cr/Climate-Moderator- nationalparks.wikispaces.com/Death+VallWater-as-a.html ey
  • 4. Convergence  Collision of different air masses to make air rise  Causes  Cloud development  Precipitationhttp://ww2010.atmos.uiuc.edu/(Gh)/gui http://apollo.lsc.vsc.edu/classes/met130/ndes/mtr/cld/dvlp/cnvrg.rxml otes/chapter6/lift_converge.html
  • 5. Localized Convective Lifting Unequal heating Pockets warming Particles rising called Thermals http://www.richhoffmanclass.com/chapter 4.html
  • 6. Stability Stabile air stays Unstable air rises Clouds will not form there is unstable air http://keithrogershome.com/Chap6Stabili tyInstability.html
  • 7. http://www.scottslum ber.com/services/win Condensation dow-condensation- are-my-windows- defective/  Saturated air  It forms in dew, fog, or clouds  Occurs when air reaches dew pointhttp://apollo.lsc.vsc.edu/classes/idm3020 http://www.srh.noaa.gov/jetstream/atmos/tut_folder/nick_tutorial/ /hydro.htm
  • 8. Types of Clouds Cirrus clouds wispy, slim, and high clouds Cumulus clouds round, individual air masses middle and low altitude Classified on the basis of formation and height http://eo.ucar.edu/webweather/cloud3.ht ml
  • 9. High Clouds  Cirrus, cirrostratus, and cirrocumulus clouds  Slim, whitish clouds  Made of ice crystals  Cirrus clouds are sometimes followed by a stormhttp://www.weatherreport.com/Local- http://eo.ucar.edu/kids/sky/clouds3.htmweather-forecasts-Cloud-Reading.asp
  • 10. Middle Clouds  Altocumulus clouds  2,000 to 6,000 meters high  Big dense curved clouds http://www.ifimages.com/public/imag 39051/view.htmlhttp://en.wikipedia.org/wiki/File:Altocum http://www.our-earth.net/Altocumulus-ulus_clouds2_-_NOAA.jpg Clouds.asp
  • 11. Low Clouds  Stratus, stratocumulus, nimbostratus clouds  Sometimes includes light precipitation  Fog like layer http://www.windows2universe.org/earth/http://urbanext.illinois.edu/kalani/18.cfm Atmosphere/clouds/stratocumulus.html
  • 12. Clouds of Vertical Development The category where that clouds don’t fit Low elevation range Sometimes ascend up to mid and high altitudeshttp://www.free-online-private-pilot-ground-school.com/Aviation-Weather-Principles.html
  • 13. Fog Similar to a cloud A cloud with its base at or near the ground The denser the tougher to seehttp://www.brainharmonycenter.com/brai http://outofthefog.net/n-fog.html
  • 14. Cold Cloud Precipitation Two physical processes Suppercooling- when precipitation freezes when it touches a solid surface Supper saturated – when relative humidity surpasses 100% https://www.meted.ucar.edu/sign_in.php ?go_back_to=http%253A%252F%252Fww w.meted.ucar.edu%252Fhydro%252Fbasic _int%252Fflash_flood%252Fnavmenu.php %253Ftab%253D1%2526page%253D2.2.2
  • 15. Warm Cloud Precipitation Collision-coalescence process makes rainwater Salt particles absorb water vapor taking it out of the air Often big droplets form. https://www.meted.ucar.edu/sign_in.php ?go_back_to=http%253A%252F%252Fww w.meted.ucar.edu%252Fhydro%252Fbasic _int%252Fflash_flood%252Fnavmenu.php %253Ftab%253D1%2526page%253D2.2.2
  • 16. Rain and Snow  Rain means water that falls from a cloud  Snow made of individual crystalshttp://aumusiclibrary.wordpress.com/201 http://blog.thomaslaupstad.com/2008/011/02/28/rain-helens-picks-for-a-rainy- /09/picture-of-snow-falling-and-a-lonely-afternoon/ tree-in-northern-norway/
  • 17. Sleet, Glaze and Hail  Sleet- The fall of small translucent ice partials  Glaze- Raindrops becoming supercolled as they fall through subfreezing air near the ground  Hail- Water vapor that go through a processes of freezing then pushed up making it bigger every time it goes through http://www.kidsgeo.com/geography-for- kids/0118-freezing-rain.phphttp://www.kidsgeo.com/geography-for- http://strangefunnyworld.com/amazing-kids/0117-sleet.php hail-the-size-of-baseballs-and-the-

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