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Chapter 12

QuestionAnswer
Short-term variations in atmospheric phenomena that interact and affect the environment and life on Earth. Weather
The long-term average of variations in weather for a particular area. Climate
A large volume of air that has the same characteristics, such as humidity and temperature. Air mass
The area over which the air mass forms. Source region
Results in fluids and objects moving in an apparent curved path rather than a straight line. Coriolis effect
The wind zones between 60 N latitude and the north pole, and 60 S latitude and the south pole. Polar easterlies
The wind systems on Earth located between latitudes 30 N and 60 N, and 30 S and 60 S. Prevailing westerlies
Between latitudes 30 N and 30 S are two circulation belts of wind. Trade winds
A narrow band of fast wind. Jet stream
A narrow region between two air masses of different densities. Front
Instrument used to measure temperature using either the Fahrenheit or Celsius scale. Thermometer
Measures air pressure. Barometer
Measures wind speed. Anemometer
Measures humidity. Hygrometer
An instrument used for gathering upper-atmospheric data. Radiosonde
The change in pitch or frequency that occurs due to the relative motion of a wave. Doppler effect
A record of weather data for a particular site at a particular time. Station model
Lines of equal pressure. Isobar
Line on a weather map connecting areas of equal temperature. Isotherm
Created by applying physical principles and mathematics to atmospheric variables and then making a prediction about how these variables will change over time. Digital forecast
Based on a comparison of current weather patterns to similar weather patterns from the past. Analog forecast
Created by: jesse14
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