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By:Taylor Bauman
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Clouds and Precipitation Project
By: Taylor Bauman
Adiabatic Temperature ChangesHappens when air is compresses or
expanded.When it expands it cools and when it
compresses it warms.As you travel up in the atmosphere the
atmosphere pressure decreases because there are fewer and fewer gas molecules.
http://www.kidsgeo.com/geography-for-kids/0070-adiabatic-temperature-changes.php
Orographic LiftingWhen elevated terrains act like barriers for
air to flow.If air descends, it warms adiabatically, then it
makes condensation and precipitation even less likely.
http://www.nc-climate.ncsu.edu/edu/k12/.LiftingMechanisms
Frontal WedgingAssociated with specific storms called middle-
latitude cyclones.Cooler, denser air acts as a barrier over the
warmer, less dense air that rises.
http://www.wou.edu/las/physci/taylor/gs106/atm2_precip_files/frame.htm#slide0004.htm
ConvergenceAir in lower atmosphere flows together.Florida experiences the greatest number of
mid-afternoon thunderstorms.
http://certik.github.com/femhub.org/
Localized Convective Lifting
On warm summer days, unequal heating of the Earth’s surface may cause pockets of air be warmed more than the surrounding air.
https://www.meted.ucar.edu/sign_in.php?go_back_to=http%253A%252F%252Fwww.meted.ucar.edu%252Fdot%252Fprint.htm
StabilityStable air tends to remain in its original
position, while unstable air tends to rise.Measured by the temperature of the
atmosphere at various heights.
http://serc.carleton.edu/introgeo/models/EqStBOT.html
CondensationAir must be saturated.Water vapor in air turns to liquid.Occurs at dew point.
http://decorating.visitacasas.com/how-to-combat-condensation/
Types of CloudsClassified by their form and height.3 types: Cirrus, Cirromulus, Cirrostratus.
http://www.usatoday.com/weather/wcirrus.htm
High CloudsCirromulus consist of fluffy mass.Cirrostratus clouds are flat layers.
http://cloudjournal.blogspot.com/2007/11/cross-winds.html
Middle CloudsAltocumulus clouds consist of a rounded
mass, larger and denser.http://www.ifimages.com/public/image/139051/view.html
Low Clouds3 members: Stratus, Stratocumulus, and
Nimbostratus.Uniform, fog-like layer.
http://www.colby.edu/cpse/equipment2/highclouds/high.html
Clouds of Vertical DevelopmentBases are in low height range but extend
upward.They are all related and have unstable air.
http://www.pilotfriend.com/av_weather/meteo/clouds.htm
Fog ( by cooling and by evaporation)Fog is a cloud with its base at or very near
ground.Fog can form on cool, calm, clear nights.
http://www.physicalgeography.net/fundamentals/8f.html
Cold Cloud PrecipitationBergeron process relies on two physical
processes: supercooling and supersaturated.Liquid below 0 degrees Celsius is said to be
supercooling.
http://ocw.usu.edu/Forest__Range__and_Wildlife_Sciences/Wildland_Fire_Management_and_Planning/Unit_4__Temperature-Moisture_Relationship_7.html
Warm Cloud PrecipitationThe thing that forms raindrops is called the
collision-coalescence process.As the raindrops move they join together with
smaller, slower droplets.
http://www.srh.noaa.gov/fwd/?n=warmrainpaper
Rain and SnowThe term rain means droplets that fall from a
cloud and a diameter of at least 0.5 mm. (smaller droplets are called drizzle)
At very low temperatures light, fluffy snow made up of 6 sided ice crystals.
http://www.its.caltech.edu/~atomic/snowcrystals/photos/photos.htm
Sleet, Glaze and HailSleet is the fall of small particles of clear ice.Glaze also known as freezing rain happens
when raindrops become supercooled.
http://www.alabamawx.com/?tag=sleet
The End
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