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chapter 12 vocab

TermDefinition
Weather short term variations in atmospheric phenomena that interact and affect the environment and life on earth
climate the long term average of variations in weather for a particular area
air mass a large volume of air that has the same characteristics such as humidity and temperature
source region the area over which the air mass forms
Coriolis effect results in fluids and objects moving in an apparent curved path rather than a straight line
polar easterlies the wind zone between 60 degrees North latitude and the north pole and 60 degrees latitude and the south pole
prevailing westerlies the wind systems on Earth located between latitudes 30 degrees north and 60 degrees south and 30 degrees south and 60 degrees south
trade winds between latitudes 30 degrees north and 30 degrees south are the two circulation belts of wind
jet stream a narrow band of fast wind
front a narrow region between two air masses of different densities
thermometer measures temperature using either the Fahrenheit or Celsius scale
barometer measures air pressure
anemometer measures wind speed
hygrometer measures humidity
radiosonde an instrument used for gathering upper-atmospheric data
Doppler effect the change in pitch or frequency that occurs due to the relative motion of a wave, such as sound or light as it comes toward or goes away from on observer
station model a record of weather data for a particular site at a particular time
isobars lines of equal pressure
isotherms lines of equal temperature
digital forecast created by applying physical principles and mathematics to atmospheric variables and then making a prediction about how these variables will change over time
analog forecast based on a comparison of current weather patterns to similar weather patterns from the past
Created by: Kamishepard_14
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