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20 Cards in this Set

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What is meteorology?
The study of processes that govern Earth's atmosphere.
What is weather?
The state of the atmosphere at a given time and place. Includes temperature, cloud coverage, air pressure, ect.
Name the 4 layers of the atmoshphere (in order from ground to space).
Troposphere, stratosphere, mesosphere, thermosphere.
Describe the troposphere.
The troposphere is the layer in the atmosphere where weather occurs. Temperature increases as the altitude increases. The natural greenhouse effect happens in the troposphere. Paricles in the air scatter radiation.
Describe the stratosphere.
In the stratosphere, temperature increases as altitude increases. Jet planes fly in this layer.
Describe the mesosphere.
As altitude increases, temperature decreases.
Describe the thermsophere.
As altitude increases, temperature increases. Radiowave transmissions, auroras, and meteors burning up happens in the thermosphere.
What is the ionosphere? What happens there and why?
A portion of the thermosphere. The air is highly ionized due to the effect of the sun's ultraviolet rays.
What is the ozone layer?
A layer of ozone (a form of oxygen gas[O3]) that absorbs harmful ultraviolet radiation.
What is ozone depletion?
When we put CFC'S (chloroflurocarbons) into the atmosphere, we are causing the ozone atoms to break apart. There is an ozone hole over Antarctica. The ozone depletion can cause skin cancer and other skin problems.
What is the natural greenhouse effect?
The ground absorbs UV rays that radiate from the sun in short wavelengths. The ground turns the UV rays into infrared and radiates it back out in longer wavelenghts.
What are the gases that absorb the infrared radiation that are important?
CO2, H2O (g),Methane and other gases.
What is global warming?
The overheating of earth caused by man-made pollutants, mostly CO2 and methane.
What causes temperatures to vary?
-altitude
-day and night: the role of clouds
-seasons/latitude
-heating of land and water
What causes seasons?
-parallelism of the axis: axis always points in the same direction
-Earth revolves around the sun
-Earth's axis is tilted.
What are the three types of heat transfer? Explain how they transfer heat.
-Radiation: evergy traveling through empty space
-Conduction: objects/gases touch
-Convection: the transfer of heat energy (hot rises, cold sinks)
How does radiation play a role in heating the atmosphere?
UV rays radiate to the ground, and the ground converts the UV radiation into infrared radiation.
What is evaporation? What is condensation?
liquid -> gas
gas -> liquid
What is melting? What is freezing?
solid -> liquid
liquid -> solid
What are the freezing and boiling points of water?
Freezing: C-0, F-32
Melting: C-100, F-212