4rsaugling

4rsaugling

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  Clouds By: Reland Saugling
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  https://earthscience-in- the- nationalparks.wikispace Orographic Lifting s.com/Death+Valley • As elevated terrain act like barrier to air, orographic lifting occurs. • Clouds and precipitation are created when air goes up a terrain, then adiabatic cooling occurs. • when air gets to the leeward side, most of the moisture is gone, if air descend it make condensation and precipitation unlikely.
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  Frontal wedging • Frontalwedging is when cool air and warm collide • Weather producing fronts have to do with specific storm system such as middle latitude cyclones http://www.ldeo.columbia.edu/BRG/ODP/ODP/LE G_SUMM/171A/leg171A.html
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  Convergence • Convergence iswhen different air masses collide and forces air to be lifted upward. • Takes place in lower atmosphere. • Convergence leads to adiabatic cooling and clouds forming. http://ww2010.atmos.uiuc.edu/(Gh)/gui des/mtr/cld/dvlp/cnvrg.rxml
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  Localized Convective Lifting •When unequal heating of Earth’s surface causes pockets of air to be warmed more than surrounding air. • Thermal are warmer parcels of air that will rise because they are less dense. • When warm parcels of air rise above condensation clouds form and clouds create mid-day rain . http://santasusana.org/pakelly/ES9CP/ES9%2 0clouds.htm
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  Stability • Stable airstays in the same position while unstable air will rise until it reaches an altitude were the surrounding clouds are the same temperature. • Most stable position is temp. inversion • Air temp. increase with height because of radiation cooling off of earths surface http://ocw.usu.edu/Forest__Rang e__and_Wildlife_Sciences/Wildlan d_Fire_Management_and_Plannin g/Unit_7__Atmospheric_Stability_ and_Instability_1.html- skinless_view.html
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  Condensation • Takes placewhen water vapor changes to a liquid in the air. • Air must be saturated for condensation to happen. • In forms of dew, fog, or clouds. http://www.weatherquestions.com/What_is_conde nsation.htm
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  Types of clouds •Classified by form and height. • Cirrus clouds-thin, white, seen in patches • Stratus- clouds that appear to look like sheets that cover the sky • Cumulus- look like dooms, consist of round independent masses http://www.enchantedlearning.com/subjects/as tronomy/planets/earth/clouds/
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  High clouds • 6000meters and higher • Cirrus, cirrostratus, and cirrocumulus • Thin and white and often made up of ice crystals http://10.85.0.4:8080/ibreports/ibp/bp.html ?fn=Students&fp=1&ip=10.182.1.107&ibip=1 0.85.0.4&ldu=0&re=0&bu=commons.wikime dia.org/wiki/File:High_Clouds_seen_from_M aui.JPG&bc=Website%20contains%20prohibit ed%20Adult%20Oriented%20content.
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  Middle Clouds • Formsfrom 2000 to 6000 meters • Types alto cirrus, altostratus, and altocumulus • Altocumulus is larger and denser while altostratus clouds create a uniform of grayish sheets that cover the sky with sunlight seen through. http://www.allstar.fiu.edu/aero/flte nv3.htm
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  Low Clouds • Forms2000 meters and below • Types Stratus, Stratocumulus, and Nimbostratus • Cloud are fog like and cover most of the sky, and sometime produce light precipitation http://www.capetownskies.com/clouds-low.htm
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  Clouds of VerticalDevelopment • Clouds that do not fit into any height range, base is in low height range while everything else is extended upwards. • Clouds are associated with unstable air. • Cumulus clouds may grow upwards and form clouds with great vertical range. http://www.pilotfriend.com/a • End result cumulonimbus v_weather/meteo/clouds.htm clouds with thunderstorms .
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  Fog http://www.photoshopstar.c om/photo-effects/how- create-fog-effect- • Clouds and fog have similar photoshop/ appearance and structure. • Fog is a cloud that has its base really close to the ground. • Fog forms from the result of radiation cooling, movement of air over a cold surface, and when water vapor is added to bring saturation.
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  Warm Cloud • Collision-coalescenceprocess form rain droplets in warm clouds • It is when water absorbing particles remove water vapor from the air at relative humidity less than 100% forming large droplets • When the droplets move through clouds they collide with smaller droplets. http://www.capespirit.com/capewestco astwallpapers.html
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  Cold Cloud Precipitation •Bergeron process relies on super cooling and super saturated • Super saturation is air that is saturated with the respect to water • Super cooled is when water will not freeze at o degrees Celsius but at 40 degrees Celsius, but it will freeze http://www.liveweatherblogs.co when it hits a solid m/weatherblog/5568/Clouds- Precipitation-as-earth-s- thermostat
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  Rain and Snow •Rain-drops of water that the diameter is at least 0.5 MM • If the temp. is higher than 4 degrees Celsius, then snow flake will melt and become rain before it hits the ground. http://kohd.com/page/21358 • Low temperature snow makes 7 up six side ice crystal while temp. warmer than -5 degrees Celsius will become large heavy lumps.
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  Sleet, Glaze, andHail • Sleet forms when a layer of air with temperature of freezing, lay over a subfreezing layer near the ground. • Glaze forms when rain drops are super cooled and fall through subfreezing air near the ground (turn to ice when collides with an object). • Hail starts out as small ice that gets bigger by super cooled water http://weblogs.wgntv.com/chic ago-weather/tom-skilling- droplets as they fall through blog/2005/03/ clouds
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  Adiabatic cooling • Whenair is allowed to expand it cools and if it is compressed it cools. • Unsaturated air cools at a constant rate. • As you travel higher , the atmospheric pressure decrease because there http://www.bio.georgiasouthern.edu /bio- are fewer gas molecules. home/harvey/lect/lectures.html?cco de=el&mda=scrn&flnm=abel&ttl=Po pulations%20and%20their%20enviro nment
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  The End!!!!!!!!