1. Pages 271 through 277 Mr. Monroe, October 8, 2007
The Atmosphere
Pages 271 through 277
Mr. Monroe, October 8, 2007

2. Two Important Definitions
Weather ~ is the condition of the atmosphere at a single particular time and place.
Climate ~ is the general condition of the atmosphere, in an area, over a long time span.

3. Constant Components of the Atmosphere

4. 78% Nitrogen (N2) 21% Oxygen (O2) .93% Argon .03% Carbon dioxide (CO2)
0.0 to 4.0% Water Vapor (H2O)
0.01% Trace gases
Neon Hydrogen
Helium Ozone
Methane Xenon
Krypton

5. Layers of atmosphpere
Troposphere ~ km
Tropopause
Stratosphere ~ km
Stratopause
Mesosphere ~ km
Mesopause
Thermosphere ~ km
Exosphere ~ 500 to space

6. Temperature Changes with altitude.
Ionosphere ~ part of the Thermosphere, is made up of charged particles. Causes the Auroras.
Exosphere, with is the end of the atmosphere, has no clear end, and where its end is, is up for discussion.

7. How heat moves around on Earth.
Radiation ~ the transfer of heat through electromagnetic radiation.

8. Why is sky blue?

9. Why is sky blue?
Atmosphere scatters shortest wavelengths first, blue, and some reach you, and look…blue.

10. Atmosphere scatters shortest wavelengths first, blue, and finally the red that is left, reaches you.
Why is sky blue?
Indigo
Green
Red is left for you to see.
Blue
Orange/ Yellow
Violet

11. Radiation and the Earth

12. Heat transfer by conduction ~ direct contact of particles.

13. Convection ~ The transfer of heat through the movement of a heated substance.