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Chapter 12
Section 1-3
| Question | Answer |
|---|---|
| Coriolis effect | effect of a rotating odythat influences the motion of any object or fluid; on Eathe, air moving norht or south from the equator appears to move right or left, respectively; the combincation of the Coriolis effect and eaths heat imbalance creates the trade |
| polar easterlies | global wind systems that lie between latitudes 60`N and 60`S and the poles and is characterized by cold air. |
| prevailing westerlies | global wind system that lies between 30` north and south latitudes, where surface air moves toward that poles in an easterly direction. |
| trade winds | two global wind systems that flow between 30` north and south latitudes where air sinks, warms, and returns to the equator in a westerly direction |
| jet stream | high-altitude, narrow,westerly wind and that occurs above large temperature contrast and can flow as fast as 185 km/b. |
| front | boundary between two air masses of differing densities; can e cold, warm, stationary, or occluded and can stretch over large areas of Earth's surface. |
| thermometer | weather instrument used to measure temperature using either the Fahrenheit or Celsius scale. |
| barometer | instrument used to measure air pressure. |
| anemometer | weather instrument used to measure wind speed. |
| hygrometer | weather instrument used to measure relative humidity. |
| radiosonde | balloon borne weather instrument whose sensors measure air pressure, humidity, temperature,wind speed,and wind direction of the upper atmosphere. |
| Doppler effect | change in the wave frequency that occurs due to the relative motion of the wave as it moves toward or away from an observer. |
| weather | short-term variations in atmosphere phenomena hat interact and affect the environment and life on Earth. |
| climate | the long-terms average f variation in weather for a particular area. |
| air mass | large volume of air that has the characteristics of the area over which it forms |
| source region | area over which an air mass forms. |
| station model | record of weather date of a specific time, using meteorological symbols. |
| isobar | line on a weather map connecting areas of equal pressure. |
| isotherm | line on a weather map connecting areas of equal temperature. |
| digital forecast | weather forecast that uses numerical data to predict how atmospheric variable change overtime. |
| analog forecast | weather forecast that compares current weather patterns to patters that occurred in the past. |
Created by:
AshleyandJesus
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