Earth Science Chapter 21
Terms in this set (23)
what air mass generally moves eastward, toward Europe?
maritime polar Atlantic
A large body of air throughout which temperature and moisture are similar.
Balloon-borne weather instrument whose sensors measure air pressure, humidity, temperature, wind speed, and wind direction.
4 types of air masses
Weather map symbols use H and L indicate what?
Air pressure centers
Temperature at which the condensation rate and evaporation rate are equal.
Lines that connect points of equal atmospheric pressure.
The front edge of a moving mass of cold air that pushes beneath a warmer air mass like a wedge.
Rotating, funnel-shaped column of air with high speeds
Mid latitude cyclone
An area of low pressure, rotating wind that moves toward the rising air of the central low-pressure system.
A brief, heavy storm with rain, wind, lightning, and thunder.
Cold and dry
Cold and moist
Warm and dry
Warm and moist
World Weather Watch
Promotes the rapid exchange of weather information.
A pattern of meteorological symbols that represent the weather at a particular station.
A line of thunderstorms that forms as a cold air mass overtakes a warm air mass.
A weather event in which air sinks and flows outward from a center of high pressure, with winds circulating clockwise in the northern hemisphere.
True/false - a tornado takes a straight path after touching down.
True/false - an air mass usually brings the weather of its source location.
Doppler radar and satellite images provide information to create what?
True/false - meteorologists have tried to control precipitation, hurricanes, and lightning.