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Weather
Dowd's Weather Vocabulary
Vocabulary | Definitions |
---|---|
air mass | large body of air that has the same characteristics of temperature and moisture as Earth's surface |
front | the boundary between air masses that are different from each other |
cyclone | area of low air pressure |
anticyclone | area of high air pressure |
tornado | a violent, whirling windstorm that crosses the land in a narrow path |
hurricane | a large, severe storm that forms over tropical oceans and has winds of at least 120 km/h |
meteorologist | scientist who studies the weather and uses information to provide forecasts |
isobars | lines on a weather map that connect points having equal air pressure |
isotherms | lines on a weather map that connect points having equal temperature |
weather | state of the atmosphere at a specific time and place, including air pressure, temperature, moisture, wind, and precipitation |
humidity | amount of water vapor in the air |
dew point | temperature at which condensation forms from the moisture in the air |
fog | stratus cloud that forms when air is cooled to the dew point near the ground |
station model | indicates weather conditions at a specific location on a map using symbols |
psychrometer | instrument used to measure humidity using a wet-bulb thermometer and a dry-bulb thermometer |
barometer | instrument used to measure air pressure |
cumulus | low level clouds that look like fluffy, rounded piles of cotton |
cirrus | wispy, feathery clouds made mostly of ice crystals that form at high levels |
stratus | clouds that form in flat layers |