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Poole/Weather Maps
Weather Maps
| Term | Definition |
|---|---|
| weather | the day-to-day state of the atmosphere |
| atmospheric movement | global air circulation; held to Earth by gravity: influenced by convection |
| air pressure | the force exerted by the atmosphere on Earth's surface |
| barometer | an instrument that measures the amount of atmospheric pressure |
| cold front | the boundary when a cold, dry, air mass overtakes a warmer, humid air mass |
| humidity | amount of water vapor or moisture in air |
| air masses | large bodies of air that have specific characteristics of pressure, temperature, and humidity |
| high pressure air mass | an air mass with greater atmospheric pressure than the surrounding air masses |
| low pressure air mass | air mass with less atmospheric pressure than the surrounding air masses |
| warm front | the boundary when a warm , moist air mass overtakes a cool, dense, and dryer air mass |
| weather map | shows the weather conditions at a specific time over a specific region |
| climate | weather averaged over a longer period of time, like 100 years |