Weather and Climate [Compatibility Mode]
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Transcript of Weather and Climate [Compatibility Mode]
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8/12/2019 Weather and Climate [Compatibility Mode]
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Weather & Climate
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8/12/2019 Weather and Climate [Compatibility Mode]
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Weather & Climate Definitions
Weather-the state of the atmosphere with
respect to heat or cold, wetness or dryness,calm or storm, clearness or cloudiness.
Climate the average course or condition ofthe weather at a place usually over a period of
years as exhibited by temperature, wind
velocity, and precipitation
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igh !ressure
Higher pressure than what is
normal for that altitude.
What do you notice about the air in this
region"
#rings clear s$ies and fair weather.
%he sin$ing cold air warms as it does so andbecomes stable.Picture taken from:
http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/high_pressure.html
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ow !ressure ' low pressure region (depression
or cyclone) is caused by rising air.
Clouds, rain, and very strong winds
occur.
Why do you thin$ that is"
Picture taken from:
http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/low_pressure.html
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Creating a Cloud
Watch the cloud demonstration*
What were the $ey ingredients in creating
the cloud"
ow is this representative of what might ta$eplace in the atmosphere"
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Cloud %ypes
Picture taken from:
http://commons.wikimedia.org/wiki/File:Cloud_types.jpg
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%emperature & umidity
Temperature - 'ir higher in pressure is usually
cooler air and air lower in pressure is usuallywarmer air.
What happens when the two meet"
Humidity - ow much water is in the air over
how much water could fit in the air (right before
the water begins to condense out of the air). Dew point+ %emperature at which the moisture
saturates the air is the dew point.
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Wind
Caused by the earths surface
being heated unevenly by the sun.
Why would the earths surface heat unevenly"
ow do you thin$ this causes the wind"
Picture taken from:
http://www.disc.wisc.edu/pus/!ewsletters/fe"#news.html
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%hunderstorms
What type of cloud causes these"
Consists of gusty winds, heavy rain and hail.
Can result in a tornado
Picture taken from:
http://www.fairfield.k$%.ct.us/&ogerludlowe/
crogerludlowe"#/we'uests/(eather/
thunderstorm.jpg
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8/12/2019 Weather and Climate [Compatibility Mode]
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ightning
What did you observe in all the lightning
demonstrations" ow does this suggestlightning occurs"
-nteresting act* /ore people are $illed bylightning per year than
in tornadoes000
Picture taken from:
http://hip.ecse.rpi.edu/)connor/education/*urge/
images/lightning.jpg
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'tmosphere
Troposphere + /ost of the weather
occurs.
Stratosphere+ 123 of the atmospheres
gases are here4 o5one layer is here
Mesosphere+ /ost meteorites burn up
here. Thermosphere+ igh energy rays from
the sun are absorbed4 hottest layer.
Eosphere+ /olecules from atmosphere
escape into space4 satellites orbit here.
Picture taken from:
http://www.windows.ucar.edu/tour/link=/earth/
Atmosphere/layers_acti+ity_print.html
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6reenhouse 6ases
6reenhouse gases + carbon dioxide, methane,
water vapor, nitrous oxide, and fluorocarbons.
're they all bad" We will find out through the
lab.
7etain the heat through a process called the
6reenhouse effect.
Picture taken from:
http://mikeytherhino.files.wordpress.com/%"",/"-/
greenhouse_gases.jpg
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6reenhouse 8ffect
Picture taken from:
http://maps.grida.no/go/graphic/greenhouseeffect