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Moisture, Clouds and precipitation

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Page 1: 2rpfeiffer

Moisture, Clouds and precipitation

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Adiabatic Temperature Changing and Expansion and Cooling.

• Temperature changes happen even though heat is not added or subtracted is adiabatic temperature.

• The first type of adiabatic is dry adiabatic, this is the cooling or heating of unsaturated air

• The second type is wet adiabatic, this is the cooling of saturated air and it moves slower than dry adiabatic.

• http://strangepaths.com/en/

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Orographic Lifting

• This occurs when mountains act as barriers to air flow, forcing the air to ascend.

• http://en.wikipedia.org/wiki/File:Orographic_lifting_of_the_air_-_NOAA.jpg

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Frontal Wedging!!!!

• The area between warm and cold air is a front.

• A process that occurs at a front, dense air act like a road block.

• Less dense air rises.

• http://www.geo.hunter.cuny.edu/~tbw/wc.notes/4.moisture.atm.stability/frontal_wedging.htm

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Convergence

• The up rising of air that results from the air in the lower atmosphere flowing together is Convergence

• warm days, air flows from the ocean to the land along both coast of Florida

• commons.wikimedia.org

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Localized Convective Lifting

• Unequal heating of earths surface warms a section of air that lowers the air density

• http://www.richhoffmanclass.com/chapter4.html

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Stability (Density Differnces & Syability and DAILY Weather

• Stable air stays in its position, when unstable air rises.

• Temperatures Conversion happens when air increases with height.

• http://ocw.usu.edu/Forest__Range__and_Wildlife_Sciences/Wildland_Fire_Management_and_Planning/Unit_7__Atmospheric_Stability_and_Instability_1.html

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Condensation

• The air must be fully saturated to form any kind of condensation.

• Types of condensation is weather dew, fog, or clouds.

• http://www.kidsgeo.com/geography-for-kids/0107-condensation.php

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Types of clouds

• Clouds are described by their height and formed.

• There are different types of clouds

• Cirrus , Cumulus and Stratus.

• http://www.weatherquestions.com/What_kinds_of_clouds_are_there.htm

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High Clouds

• High clouds are often made up of ice crystals, they are thin and white as well.

• They are formed by low tempertaures, small amount of water vapor up high.

• http://eo.ucar.edu/kids/sky/clouds3.htm

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Middle Clouds

• Clouds appear to 2000-6000meters from ground.

• These Clouds put a blanket like across the sky that looks whiteish grey.

• http://www.allstar.fiu.edu/aero/fltenv3.htm

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Low Clouds

• Low clouds cover a lot of the sky, kinda like fog.

• Low Clouds form from air rising up.

• Nimbostratus,Stratocumulus and stratus clouds are all types of low clouds.

• http://www.atmos.illinois.edu/earths_atmosphere/clouds.html

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Clouds of Vertical Development.

• Not all clouds fit in high low or middle clouds.

• Some clouds can form under the proper circumstance.

• http://www.free-online-private-pilot-ground-school.com/Aviation-Weather-Principles.html

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Fog

• There is nothing different from a fog and a cloud, the only difference is the method and place of formation.

• Fog is formed by radiation cooling.

• Fog is clouds that touch to the ground.

• http://www.naturalhazards.org/hazards/fog/index.html

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Cold Cloud Precipitation(Bergeron process)

• Bergeron Process is a theory that relates the formation of precipitation to supercooled clouds, Freezing nuclei

• Water is supercooled when it is below 0°C

• http://www.richhoffmanclass.com/chapter5.html

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Warm Cloud Precipitation (collision-coalescence process)

• Supersaturated is with ice is greater than 100 percent relative humidity.

• Rain drop formation in warm clouds is a theory called Colluision-coalescence.

• https://www.meted.ucar.edu/sign_in.php?go_back_to=http%253A%252F%252Fwww.meted.ucar.edu%252Ftropical%252Ftextbook_2nd_edition%252Fnavmenu.php%253Ftab%253D6%2526page%253D3.0.0

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Rain & Snow.

• Drops of water that fall from the sky is called rain.

• When the temperature gets really cold the rain froze to a 6-sided ice crystal called snowflakes.

http://zahiym5tlc.edublogs.org/

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Sleet, Glaze and Hail

• Clear particles that fall from the sky is sleet.

• Glaze is when frozen rain falls to the ground.

• Hailstorms begin as ice pallets falling from the sky.

• http://www.kidsgeo.com/geography-for-kids/0118-freezing-rain.php