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- Gases are densest at sea level and thin rapidly upward from surface
- Humans are designed to live at the bottom of this "ocean" of air
- Closest to surface
- Weather processes occur there (zone of change)
- Clouds and turbulence
- Thickness varies from 3 mi. at poles to 10 mi. at the Equator
in the troposphere, temperature is related to altitude.
- The higher you go, the colder it gets.
- Temperature decreases at a steady rate
called the normal lapse rate.
- located above the troposphere
- Jet planes fly there (less turbulence than in troposphere
- Very cold (60℉ below zero)
Located at boundary between warm and cold air
Planes travel in the jet stream to get to destinations quicker.
E -> W = Quicker
W -> E = Slower
- blocks ultraviolet radiation
- protects us against skin cancer
- protects against cataracts
- protects crops
- ozone layer is destroyed by chlorofluorocarbons
- above ozonosphere (mostly in thermosphere)
- particles are electrically charged (ionized)
- location of Aurora
- AM radio communications
- radio waves bounce off layers in ionosphere
controls of climate
1. Latitude *
2. Altitude (Elevation) *
3. Ocean Currents
4. Land and water distribution
5. Oceans heat and cool more slowly than land areas
6. Mountain barriers
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