malupet

1. ATMOSPHERE
ENVIRONMENT
PRESENTORS:
Tanuyan, Edhrian
Marco Galanonggo
Trinidad, Ronald

2. The Atmosphere Environment
• This chapter discusses:
1. What is the composition of the Atmosphere
2. What are the layers of the atmosphere
3. What are the factors affecting weather, climate
and season
4. What are some weather disturbances aand their
effects
5. How does PAGASA monitor weather
disturbances

3. Atmosphere
• Earth Has 4 main systems that
interact:
– The Atmosphere
• Mostly Nitrogen and
Oxygen
• Water vapor is responsible
for clouds and precipitation
• Has layers
• Protects us from meteors
and comets, x-rays, gamma
rays, ultra violet light
– The Hydrosphere
– The Biosphere
– The Geosphere

4. Atmospheric Gases
Nitrogen, oxygen, argon, water
vapor, carbon dioxide, and most other
gases are invisible.
Clouds are not gas, but condensed
vapor in the form of liquid droplets.
Ground based smog, which is
visible, contains reactants of nitrogen
and ozone.
Ozone – is the primary ingredient of
smog!

5. Earth's Atmosphere
99% of atmospheric gases, including water vapor, extend only 30
kilometer (km) above earth's surface.
Most of our weather, occurs within the first 10 to 15 km.

6. Earth’s Atmosphere
• The present atmosphere of the Earth
is probably not its original
atmosphere. Our current atmosphere
is what chemists would call
an oxidizing atmosphere, while the
original atmosphere was what
chemists would call a reducing
atmosphere. In particular, it probably
did not contain oxygen.
• The atmosphere is a mixture of
nitrogen (78%), oxygen (21%), and
other gases (1%) that surrounds Earth.
High above the planet, the atmosphere
becomes thinner until it gradually
reaches space. It is divided into five
layers. Most of
the weather and clouds are found in
the first layer.
• The atmosphere is an important part
of what makes Earth livable. It blocks
some of the Sun's dangerous rays
from reaching Earth. It traps
heat, making Earth a comfortable
temperature. And the oxygen within
our atmosphere is essential for life.

7. Composition of Earth’s atmosphere
• Earth Has 4 main
systems that interact:
– The Atmosphere
• layers
– Exosphere
– Thermosphere
– Mesosphere
– Stratosphere
– Troposphere
– The Hydrosphere
– The Biosphere
– The Geosphere

8. COMPOSITION OF EARTH’s
ATMOSPHERE
Troposphere
• Is the lowest major atmospheric layer, and is
located from the Earth.s surface up to the
bottom of the stratosphere
• Troposphere is where all the earth’s weather
occurs.
• Air in the troposphere also contains water vapor
and small amounts of traces of gases such as
methane, nitrous oxide, carbon
monoxide, Hydrogen and Ozone, These gases
are in tiny amounts,but they are what makes
the atmosphere an insulating blanket around
the planet. Without this blanket,it would be too
cold on earth to sustain life

9. Troposphere and Clouds
• Among other gases there is water vapor in the
troposphere.
• Clouds—form when air rises, cools to its dew
point, and becomes saturated (moist).

10. .
Stratosphere
• Is the second major layer
of earth’s atmosphere,
• It is stratified in
temperature,with warmer
layers higher up and
cooler layers farther
down this is in contrast to
the troposphere near the
earth’s surface(cooler
higher up/warmer farther
down)
– 10 km to 50 km
– contains ozone that
absorbs much of the
Sun’s ultraviolet
radiation.
– Gets warmer as you go
up.

11. Mesosphere
• The mesosphere (from
the greek word mesos
meaning middle and
sphaire meaning ball)
• Is the layer of the earth’s
atmosphere that directly
above the stratosphere.
• The mesosphere is
located from abbove
50km to 80-90km altitude
above the Earth’s surface

12. Thermosphere
• Is the layer of the
Earth’s Atmosphere
directly above the
mesosphere.Within this
layer, Ultraviolet
radiation causes
ionization.the location
is 200-300km above the
earth’s surface

13. Exosphere
• Extends to 10,000 km
above the Earth’s
Surface
• Is the upper most layer
of the atmosphere. In
exosphere, an upward
travelling molecule can
escape to space.
• The exosphere is the
highest layer of the
atomosphere

14. Atmosphere
Exosphere--The last layer of the atmosphere, Difficult
to tell where it stops and space begins, Very few atoms in this
layer of the atmosphere
Thermosphere-- The air is really thin that high up. The
temperature changes with the solar activity. If the sun is
active, temperatures in the thermosphere can get up to 1,500°C or
higher!
Mesosphere--The temperature drops when you go
higher, like it does in the troposphere. Coldest part of the
atmosphere
Stratosphere--from 10 km to 50 km above Earth’s
surface, this layer contains ozone that absorbs much of the
Sun’s ultraviolet radiation.
Troposphere--Contains most clouds and
weather., Most of the troposphere’s heat is from
Earth, Temperature cools about 6.5 degrees Celsius per
kilometer of altitude.