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, eh
Pretty 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 Troposphere
The Troposphere
The
The
troposphere
troposphere
is
is
where all weather
where all weather
takes place
takes 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 winds
the winds
The Stratosphere and
The Stratosphere and
Ozone Layer
Ozone Layer
Above the
Above the
troposphere is the
troposphere is the
stratosphere
stratosphere
,
,
The thin ozone layer
The thin ozone layer
is in the upper
is in the upper
stratosphere
stratosphere
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 Mesosphere
The Mesosphere
Above the stratosphere
Above the stratosphere
is the mesosphere
is 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 can
times of the year, we can
see many of these
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
Ionosphere
Ionosphere
Also called
Also called
thermosphere
thermosphere
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, and
photons from the Sun, and
for reflecting radio waves,
for reflecting radio waves,
thereby making long-
thereby making long-
distance radio
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 molecules
air molecules
That means the
That means the
more energy
more energy
something gives off
something gives off
the hotter it will be
the hotter it will be
Degrees Fahrenheit (° F)
Degrees Fahrenheit (° F)
In 1724 that
In 1724 that
Gabriel
Gabriel
Fahrenheit, an
Fahrenheit, an
instrument maker,
instrument maker,
made a
made a
thermometer with
thermometer with
mercury.
mercury.
212 boiling point
212 boiling point
32 freezing point
32 freezing point
Degrees Celsius (° C)
Degrees Celsius (° C)
In 1745, Carolus
In 1745, Carolus
Linnaeus invented
Linnaeus invented
a scale in which
a scale in which
0 is freezing point
0 is freezing point
100 boiling point
100 boiling point
Aneroid Barometer
Aneroid 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 out
container 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 graph
pressure on a graph
Mercury Barometer
Mercury Barometer
Measures atmospheric
Measures atmospheric
pressure
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
rises
rises