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29 Cards in this Set

  • Front
  • Back
Layer of the atmosphere, merges with inner planetary space
part of the earth's atmosphere, from 80-550 km above surface -particles exist
Layer of the atmosphere above mesosphere
upper boundary of mesosphere, marked by temp increase
Layer of the atmosphere above stratosphere & from 50-80 km
high-temp zone, marks upper boundary of stratosphere
above troposphere, from 12-50 km, contains ozone layer, air gets warmer because of solar energy
upper boundary of troposphere, temp remains almost constant
water vapor & CO2, temp decreases as altitude increases, split from stratosphere by tropopause
Atmospheric pressure
ratio of force of air to area of surface on which it presses
instrument used to measure atmospheric pressure
Standard atmospheric pressure
atmospheric pressure measured at sea level -760mm of mercury
Temperature inversion
atmospheric condition -layer of cold air trapped beneath layer of warm air
typical weather patterns over a period of years, in a given location
type of energy transfer in which vibrating molecules pass heat along to other vibrating molecules by direct contact
Convection cell
looping pattern of flowing air
global winds located between 40-60 latitude that flow from Southwest (northern hemisphere)& Northwest (southern hemisphere)
Trade winds
winds that flow toward the equator between 30-0 latitude
Polar easterlies
weak global winds located north of 65 north latitude and south of 65 south latitude that flow away from poles
Subpolar low
belt of low air pressure at about 60 north and 60 south latitude
Horse latitudes
belts of high air pressure and very dry descending air located at about 30 latitude north & south of the equator
a rainy equatorial belt of low air pressure and slowly rising air
Electromagnetic spectrum
total range of electromagnetic waves, from radio waves to gamma rays
percent of solar radiation reflected by a surface
Greenhouse effect
ability of atmosphere to absorb long heat waves from earth after allowing sun's short waves to pass through it
Jet stream
narrow band of strong westerly winds at high levels in middle latitudes usually at heights of 6000-12000m
Nitrogen cycle
process in which nitrogen moves from the air to the soil to animals and back to air
form of atmospheric oxygen that has 3 atoms per molecult instead of 2 per molecule (regular oxygen)
the state of the atmosphere at a given time and place