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Chapter 12 ES/sc
vocab
| Question | Answer |
|---|---|
| short term variations in the atmosphere | weather |
| long term average in the atmosphere | climate |
| a large volume of air that has the same characteristics | air mass |
| the area over which the air mass forms | source region |
| fluids and objects moving in an apparent curved path rather than a straight line | coriolis effect |
| zones between 60 degrees N and 60 degrees S | polar easterlies |
| wind systems located between 30 N and 60 N, and 30 S and 60 S | prevailing westerlies |
| between 30 N and 30 S are two circulation belts of wind | trade winds |
| narrow band of fast wind | jet stream |
| collision of two air masses | front |
| measures temperature | thermomeater |
| measures air pressure | barometer |
| measures wind | anemometer |
| measures humidity | hygrometer |
| used for gathering upper-atmospheric data | radiosonde |
| change in pitch or frequency | doppler effect |
| a record of weather data for a particular site at a particular time | station model |
| lines of equal pressure | isobars |
| lines of equal temperature | isotherms |
| created by applying physical principles and mathematics to atmospheric variables and then making a prediction | digital forecast |
| based on a comparison of current weather patterns to similar weather patterns from the past | analog forecast |