Weather Unit Foldable

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Weather Unit Foldable

• In the upper right hand corner write
• Your name
• Today's date
• Core

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Yellow Paper Title The Atmosphere

• What is the atmosphere?
• What is the function of the atmosphere?

• The atmosphere is
• layers of gasses that
• surround the Earth.
• Earths atmosphere has
• two main functions 1st it
• contains gas like O2 that
• we need to live and 2nd it
• traps heat so the water on
• the planet remains liquid.

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The Atmosphere

• What gases are in the atmosphere?

• There are 2 main gases
• in the atmosphere
• 1st Nitrogen 78
• 2nd Oxygen 21.
• All other gases make up
• the other 1.

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Green Air Pressure

• What is air Pressure?
• What is Barometric pressure?

• The result of the weight
• of a column of air pushing
• down on an area.
• Changes in the atmospheric pressure as shown by a
  barometer

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Air Pressure

• What are the Properties of air?
• Altitude/Elevation
• How does altitude affect air pressure and density?

• Air has mass, density, and pressure.
• The distance above sea level. (the surface of
  the ocean)
• The higher the altitude the lower the air
  pressure and denisty
• The lower the altitude the greater the air
  pressure and density.

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Blue TitleLayers of the Atmosphere

• How many layers are there in the atmosphere?

• There are 5 layers, the troposphere,
  stratosphere, mesosphere, thermosphere, and
  exosphere,

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Layers of the Atmosphere

• Troposphere
• - This is the layer we live in and the
  smallest layer
• Temperature decreases as altitude increases 140
  to - 76 degrees F
• All weather happens here
• This is the ONLY layer living things can live in
• 16 km above sea level

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Layers of the Atmosphere

• Stratosphere
• Temperature increases as altitude increases from
  -76 to 32 degrees F
• - Ozone layer found here, and weather Balloons
• 50 km above the earth

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Layers of the Atmosphere

• Mesosphere
• - Temperature decreases to coldest point 32
  to -130 degrees F.
• - Meteor Showers
• - 50 to 90 km

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Layers of the Atmosphere

• Thermosphere
• - Temperature increases 2700 degrees F
• - Aurora borealis (Northern lights),
  International Space Station, Space Shuttle stay
  in this layer.
• - 90 to 500 km from sea level

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Layers of the Atmosphere

• Exosphere
• - Temperature Increases to 5000 degrees F
• - Satellites orbit here
• - 500 km from sea level
• Meteorology - is the study of the earths
  atmosphere

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Orange titleAir Masses and air Fronts

• Air Mass
• Air always move from areas of high pressure to
  areas of low pressure.
• On the surface of earth air moves from the poles
  to the equator. In high atmosphere air move to
  the poles

• A huge body of air that has similar temperature,
  humidity, and air Pressure.

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• There are 5 types of air masses classified by
  temperature, and humidity.
• Continental dry
• Maritime wet
• Tropical warm
• Polar cooled
• Artic Super cold
• The pacific ocean currents influence the weather
  of Utah. How?

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Orange TitleAir Masses and Fronts

• What is a Front?
• There are three main types of Fronts

• An area where air masses meet and dont mix.
• Cold Front
• Warm Front
• Stationary Front

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Air Masses and Fronts

• Cold Front Cold air moves underneath warm air,
  forcing warm air to rise.
• Usually short violent storms
• Page 605

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Air Masses and Fronts

• Warm Front Forms when warm less dense air rises
  over cold air.
• Precipitation usually far ahead of the front.

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Air Masses and Fronts

• Stationary Front happens when a cold and warm
  air mass meet and dont move.

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Orange 2 TitleWeather Factors

• Radiation the transfer of energy by
  electromagnetic waves
• Conduction heat transferred through a substance
  by the direct contact of molecules.
• Convection Currents the transfer of heat by the
  movement of a heated fluid.

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Orange 2 TitleWeather Factors

• Weather is caused by heat energy, moister, wind,
  air pressure.
• The ozone layer absorbs powerful ultraviolet
  radiation from the sun.
• Green house effect process by which gases hold
  heat in the air. CO2

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Orange 2 TitleWeather Factors

• Temperature the average amount of energy of
  motion of the molecules of a substance.
• Heat the transfer of energy from a hotter
  substance to a cooler one.

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El Nino

• El Nino - (El Nee-nyo) is the warming of water in
  the Pacific Ocean.
• El Nino Weather
• Rain and flooding along the Pacific coast
• Warm water disrupts food chain of fish, birds,
  and sea mammals
• Tornadoes and thunderstorms in southern US
• Fewer than normal hurricanes in the Atlantic

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• La Nina - (Lah Nee-Nyah) is the cooling of water
  in the Pacific Ocean.
• La Nina Weather
• Snow and rain on the west coast
• Unusually cold weather in Alaska
• Unusually warm weather in the rest of the USA
• Drought in the southwest
• Higher than normal number of hurricanes in the
  Atlantic

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Blue TitleWind

• Wind the horizontal Movement for air from an
  area of high pressure to an area of low pressure.
• All wind is caused by differences in air
  pressure.
• Wind is named by the direction from which it
  comes from.

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Global Wind Patterns
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Blue TitleWind

• Jet Stream bands of high-speed winds about 10km
  above earths surface.
• Prevailing Westerlies mid-latitude, wind that
  blow from West to East.

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Green TitlePrecipitation

• Precipitation any form of water that falls from
  the clouds and reaches Earths surface. (liquid
  or solid)
• There are 5 common types of precipitation
• Water
• Sleet
• Freezing Rain
• Hail
• snow

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Green TitlePrecipitation

• Humidity measure of the amount of water vapor in
  the air
• Water vapor water in the form of a gas
• Moist air is more dense then dry air
• Liquid water in more dense then water vapor
• Warm air holds more water vapor then cold air

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Weather vs. climate