Clouds and precipitationLauren Dreghorn-carver

MeteorologyMrs.Joseph/mrs.Neisen

Adiabatic temperature changes and expansion and cooling

Air expand-it cools and air compressed-it warms.Rate of adiabatic cooling or heating in unsaturated

air is the dry adiabatic rate.When it is saturated air its called wet adiabatic rate

and that dry's slower then the dry adiabatic.

link: http://apollo.lsc.vsc.edu/~wintelsw/MET1010LOL/chapter06/

Orographic liftingfacts http://www.crh.noaa.gov/

unr/?n=weatherIt occurs when elevated

terrainsMountains act as a

barriers air flow that is forcing air to ascend

Frontal wedging facts

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

It’s a boundary between colliding masses of warm and cold air

It occurs at a front in which cold dense air acts as a barrier

convergencefacts http://ww2010.atmos.uiuc.edu/

(Gh)/guides/mtr/cld/dvlp/cnvrg.rxml

Its lifting of airResults from air in the

lower atmosphereThat makes it flow

together

Localized convection lifting•Lifting occurs when unequal heating of earths surface•It warms a pocket or air more then the surrounding air•Lowering the pocket of air density

Linkhttp://www.richhoffmanclass.com/chapter4.html

Stability (density differences and stability and daily weatherfacts

http://www.vietnamonline.com/destination/hanoi/weather-by-month/hanoi-weather-in-august.html

Tend to remain the original position when unstable air rises

Its most stable condition Is when air temp. increase

When that happens it is called temperature inversion

Condensation

factshttp://keep3.sjfc.edu/students/kes00898/e-port/condensation%20page%20for%20unit.html

For it to form it needs to have dew,fog,or clouds and the air must be saturated

Air above ground turn into tiny particulars matter that is called condensation nuclei

It serves as a surface for a water vapor

Types of cloudsfacts http://eo.ucar.edu/

webweather/cloud3.htmlThey are classified how

they are classified is their shape and height

They are cirrus and cumulus and stratus

Cirrus –white high thin .cumulus-round individual ,stratus-sheets

High cloudsfact http://eo.ucar.edu/kids/

sky/clouds3.htmThree family clouds

make up the high clouds cirrus and cirrostratus and cirrocumulus

All high clouds are thin and white and are often made up of ice crystals

They are not considered precipitation makers

Middle cloudsfact http://www.bigbranch.net/

middle%20clouds.htmThey are larger and

denser. They are part of the

altocumulusLight snow or drizzle

will accompany them

Low cloudsfacts http://eo.ucar.edu/kids/

sky/clouds1.htm3 members –stratus and

stratocumulus and nimbostratus

Fog like layer of cloudsNimbostratus are the

stable conditations

Clouds of vertical developmentfacts

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

Some of the clouds do not fit into the height categories

They have their basesThe clouds are related to

each other

Fog (by cooling and by evaporation)facts

http://epod.usra.edu/blog/2006/03/advection-fog-in-new-hampshire.html

Physically there is no difference between fog and a clound

Fog can form on cool clear and calm nights

When cool air moves across warm water it may evaporate

Cold cloud precipitation(bergeron process)facts

http://nanopatentsandinnovations.blogspot.com/2010/06/amount-of-dust-pollen-matters-for-cloud.html

Bergeron process is a theory

It relates to precipitation Super cooled and

freezing nuclei and the different saturation levels of ice and liquid water

Warm cloud Fact http://www.frangardino.com/clouds/

index.htmlAir saturated with

respect to water it is super saturated with respect to ice

Collision coalescence is a theory of raindrop formation in warm clouds

Large clouds collide and join together with smalle droplets to form raindroplets

Rain and snowFacts

http://fineartamerica.com/featured/lake-rain-and-snow-darryl-kravitz.html

Light fluffy snow makes individual 6 sided crystals

Temps warmer then -5 ice crystals go into large clumps

Snowfalls of the snowflakes are heavy ,are high moisture contents

Sleet glaze and hailfacts

http://scienceray.com/earth-sciences/the-mysteries-of-earth-science-rain-snow-and-hail/

Sleet-small particles of clear to translucent

Glaze-also knew as freezing rain it happens when super cooled raindrops

Hail- produce cumulonimbus cloud hailstones are small ice pellets but they get larger s they collect super cooled water cooled

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