section 3 vocab

4. used to measure air pressure.
6. effect- change in the wave frequency that occurs due to the relative motion of the wave as it moves toward or away from the observer.
8. forecast- weather forecast that uses numerical data to predict how atmosphere variables change over time.
9. instrument used to measure wind speed.
10. imaginary line on a map that shows points of the same age formed at the same time.
12. line on a weather map connecting arears of equal pressure.
13. a systematic decrepitation of an object of phenomenon that shares important characteristics with the object or phenomenon.
14. forecast- weather forecast that compares current weather patterns to patterns that occurred in the past.

1. instrument used to measure humidity.
2. at a specific time using meteorological symbols.
3. borne weather instrument whose sensors measure air pressure, humidity, temperature, wind speed, and wind direction of the upper atmosphere.
5. measurements of how rapidly or slowly particles move.
7. used to measure temperature using either the Fahrenheit or Celsius scale.
11. model- record of weather data for a specific