Term
| Atmosphere is composed of- |
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Definition
| Gases (dry), Aerosols, Water vapor(4% of earth's air volume) |
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Term
| Composition of dry gases in atmosphere is? |
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Definition
78% nitrogen
21% oxygen
1% other (CO2, Methane CH4, N2O, CFC's, Ar, Ne) |
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Term
| Layers of atmosphere and their change in temperatures |
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Definition
Troposphere, Stratosphere, Mesosphere, and Thermosphere.
Temp decreases with height, then increases, then decreases, then increases again. |
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Term
| Ozone characteristics and how CFC's affect it. |
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Definition
At surface of earth, O3 is an irritant. In Stratosphere, it absorbs UV radiation and makes heat.
Cl in CFC's is not used up and can continously break down ozone molecules.
Montreal protocol controlled CFC production. |
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Term
| Describe the atmosphere's physical properties: Pressure, density, and Temperature |
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Definition
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Term
| What are types of atmospheric pollution? |
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Definition
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Term
| Which greenhouse gases are most important? What do greenhouse gases do? |
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Definition
H2O is the most important (Water Vapor), Other GHGs emit/absorb radiation in the atmospheric window, where H20 isn't effective.
CO2,CH4,N2O,CFCs |
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Term
| What are the location controls of surface temperature? |
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Definition
Angle of sun, land/water contrast,and cloud cover.
(It is easier to warm/cool land than water) |
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Term
| What effect do clouds have on energy budget? |
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Definition
They reflect incoming sunlight, cooling the surface below. (this effect dominates during the day)
They enhance Greenhouse effect by warming surface, EMITTING IR downwards (this effect dominates at night) |
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