Imagine….. Think of yourself on the bottom of the ocean. What is surrounding you? Pretty heavy, eh The same is with the atmosphere – it surrounds.

Imagine…..Imagine…..

Think of yourself on Think of yourself on the bottom of the the bottom of the ocean.ocean.

What is surrounding What is surrounding you?you?

Pretty heavy, ehPretty heavy, eh The same is with the The same is with the

atmosphere – it atmosphere – it surrounds like the surrounds like the ocean, yes it is heavy ocean, yes it is heavy but we are use to it. but we are use to it.

Not only does the Earth have a complex atmosphere, but that atmosphere has complicated motion and nontrivial behavior. We Earthlings call this weather in the short term and climate over the longer term. The following images illustrate some of the complex patterns that develop in Earth's atmosphere.

The TroposphereThe Troposphere

The The tropospheretroposphere is is where all weather where all weather takes placetakes place

it is the region of it is the region of rising and falling rising and falling packets of air. packets of air.

It also contains It also contains the windsthe winds

The Stratosphere and The Stratosphere and Ozone LayerOzone Layer

Above the Above the troposphere is the troposphere is the stratospherestratosphere, ,

The thin ozone layer The thin ozone layer is in the upper is in the upper stratospherestratosphere

This layer (ozone) is This layer (ozone) is primarily primarily responsible for responsible for absorbing the absorbing the ultraviolet radiation ultraviolet radiation from the Sun. Earth. from the Sun. Earth.

The MesosphereThe Mesosphere Above the stratosphere Above the stratosphere

is the mesosphereis the mesosphere This is where we see This is where we see

"falling stars," meteors "falling stars," meteors that fall to the earth and that fall to the earth and burn up in the burn up in the atmosphere. At certain atmosphere. At certain times of the year, we times of the year, we can see many of these can see many of these "falling stars" when the "falling stars" when the earth goes through the earth goes through the pieces of a broken pieces of a broken comet. comet.

The The IonosphereIonosphere Also called Also called thermospherethermosphere many atoms are ionized many atoms are ionized

(have gained or lost (have gained or lost electrons so they have a electrons so they have a net electrical charge). net electrical charge).

The ionosphere is The ionosphere is responsible for absorbing responsible for absorbing the most energetic the most energetic photons from the Sun, photons from the Sun, and for reflecting radio and for reflecting radio waves, thereby making waves, thereby making long-distance radio long-distance radio communication possible. communication possible.

What is Temperature?What is Temperature?

The real definition The real definition of temperature is of temperature is the measure of the the measure of the average speed of average speed of air moleculesair molecules

That means the That means the more energy more energy something gives something gives off the hotter it will off the hotter it will bebe

Degrees Fahrenheit (° F)Degrees Fahrenheit (° F)

In 1724 that In 1724 that Gabriel Gabriel Fahrenheit, an Fahrenheit, an instrument instrument maker, made a maker, made a thermometer with thermometer with mercury.mercury.

212 boiling point212 boiling point 32 freezing point32 freezing point

Degrees Celsius (° C)Degrees Celsius (° C)

In 1745, Carolus In 1745, Carolus Linnaeus invented Linnaeus invented a scale in whicha scale in which

0 is freezing point0 is freezing point 100 boiling point100 boiling point

Aneroid BarometerAneroid Barometer Inside tube is a Inside tube is a

container that doesn’t container that doesn’t have any air in it.have any air in it.

Increase of pressure – Increase of pressure – container bends in container bends in

Decrease of pressure Decrease of pressure container bulges outcontainer bulges out

This container is This container is connected to a pointer connected to a pointer that records the atms that records the atms pressure on a graphpressure on a graph

Mercury BarometerMercury Barometer

Measures Measures atmospheric pressureatmospheric pressure

Atmosphere pressure Atmosphere pressure presses on mercury in presses on mercury in the bottom which the bottom which makes mercury rise makes mercury rise up the barometer.up the barometer.

The greater the The greater the pressure the the pressure the the higher the mercury higher the mercury risesrises