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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 |