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By Zach Kraus http://www.layoutsparks.com/1/142820/rain- cloud-falling-drops.html
Adiabatic Temperature Changes and       Expansion and Cooling• Air cools when it expands and it warms when  it compresses•...
Orographic Lifting• When elevated land, like mountains, blocks  the airflow• which can cause adiabatic cooling which  make...
Frontal Wedging• When cool dense air makes less dense warmer  air rise above the cooler air• geo.hunter.cuny.edu
Convergence• Airflow from more than one direction, usually  up• Leads to adiabatic cooling and the formation  of clouds• w...
Localized Convective Lifting• When warm pockets of air around cooler air  pushes the warm air up• rst.gsfc.nasa.gov
Stability                                 splendidlittlestars.blogspot.com• Stable air resists vertical movement while  un...
Condensation• Can be in the forms of dew, fog, or clouds• Air must be saturated for any kind of  condensation• Must have a...
Types of Clouds•   Classified on the basis of their form and height•   Cirrus clouds are white, thin, and high•   Cumulus ...
High Clouds• First type, Cirrus clouds are very thin and  wispy• Second type, Cirrocumulus that have fluffy  masses• Last ...
Middle Clouds• Range from about 2,000-6,000 meters• Altocumulus clouds are thicker and denser  than cirrocumulus• Altostra...
eo.ucar.edu     Low Clouds• Stratus, stratocumulus, and nimbostratus are  the three types of low clouds• Stratus clouds ar...
Clouds of Vertical Development• Associated with unstable air• Usually cumulus clouds that grow upward and  turns into cumu...
Fog• No difference between fog and clouds, fog is  defined as a cloud with its base close to the  ground• Sometimes made b...
Cold Cloud Precipitation• The Bergeron procedure relies on super  cooling and supersaturating to chill the water  in the a...
Warm Cloud Precipitation• The collision-coalescence process forms  raindrops in warm clouds         frrl.wordpress.com
Rain and Snow• The term rain means drops of water that fall  from clouds and need to be .5 mm, rain  smaller than that is ...
Sleet, Glaze, and Hail• Sleet is falling pieces of ice that are small and  almost see through• Glaze is raindrops that fre...
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Clouds and precipitation

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Transcript of "Clouds and precipitation"

  1. 1. By Zach Kraus http://www.layoutsparks.com/1/142820/rain- cloud-falling-drops.html
  2. 2. Adiabatic Temperature Changes and Expansion and Cooling• Air cools when it expands and it warms when it compresses• Dry adiabatic rate is 10ᵒ per every 1000 meters• Wet adiabatic rate is 5ᵒ-8ᵒ per every 100 metersmodelliabridal.net
  3. 3. Orographic Lifting• When elevated land, like mountains, blocks the airflow• which can cause adiabatic cooling which makes clouds and precipitation• ag.arizona.edu
  4. 4. Frontal Wedging• When cool dense air makes less dense warmer air rise above the cooler air• geo.hunter.cuny.edu
  5. 5. Convergence• Airflow from more than one direction, usually up• Leads to adiabatic cooling and the formation of clouds• ww2010.atmos.uiuc.edu
  6. 6. Localized Convective Lifting• When warm pockets of air around cooler air pushes the warm air up• rst.gsfc.nasa.gov
  7. 7. Stability splendidlittlestars.blogspot.com• Stable air resists vertical movement while unstable air rises freely• The most stable air is when air temperature rises with height which is called a temperature inversion• Thin clouds are formed when stable air is forced into the atmosphere, compared to puffy clouds formed from unstable air
  8. 8. Condensation• Can be in the forms of dew, fog, or clouds• Air must be saturated for any kind of condensation• Must have a surface to condensate on usefilm.com
  9. 9. Types of Clouds• Classified on the basis of their form and height• Cirrus clouds are white, thin, and high• Cumulus clouds are round individual clouds• Stratus clouds are sheets that cover up a lot of the sky electricscotland.com
  10. 10. High Clouds• First type, Cirrus clouds are very thin and wispy• Second type, Cirrocumulus that have fluffy masses• Last type, Cirrostratus clouds are flat layers eo.ucar.edu
  11. 11. Middle Clouds• Range from about 2,000-6,000 meters• Altocumulus clouds are thicker and denser than cirrocumulus• Altostratus clouds creates a white blanket that covers the sky eo.ucar.edu
  12. 12. eo.ucar.edu Low Clouds• Stratus, stratocumulus, and nimbostratus are the three types of low clouds• Stratus clouds are like foggy layers of clouds• Stratocumulus clouds appear as long patches of clouds• Nimbostratus clouds are usually the clouds that create precipitation and are made of stable air
  13. 13. Clouds of Vertical Development• Associated with unstable air• Usually cumulus clouds that grow upward and turns into cumulonimbus cloud that usually makes rain and thunderstorms prwatch.org
  14. 14. Fog• No difference between fog and clouds, fog is defined as a cloud with its base close to the ground• Sometimes made by warm moist air moves over cold ground• May occur when cool air moves over warm water stuffintheair.com
  15. 15. Cold Cloud Precipitation• The Bergeron procedure relies on super cooling and supersaturating to chill the water in the air• Super cooled water is water under 0 and will readily freeze if touches a solid object stockphotopro.com
  16. 16. Warm Cloud Precipitation• The collision-coalescence process forms raindrops in warm clouds frrl.wordpress.com
  17. 17. Rain and Snow• The term rain means drops of water that fall from clouds and need to be .5 mm, rain smaller than that is considered drizzle• When the temperature is lower 6 sided ice crystals that are fluffy and white fall from clouds its.caltech.edu
  18. 18. Sleet, Glaze, and Hail• Sleet is falling pieces of ice that are small and almost see through• Glaze is raindrops that freeze when they hit the ground• Hail is pieces of ice that grow bigger and bigger as they fall through the air askpari.wordpress.com
  19. 19. school.discoveryeducation.com
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