Weather Systems
This type of pressure system typically brings clear skies and calm weather.
What is a high-pressure system?
This is the boundary between two air masses where changes in weather occur.
What is a front?
______ measures precipitation when radio waves bounce off raindrops or snowflakes.
What are radars?
Pollution from a single identifiable source
What is point-source pollution?
This air mass is characterized by warm temperatures and high moisture levels and originates over oceans near the equator.
What is a maritime tropical (MT) air mass?
This type of pressure system is associated with clouds, rain, and potentially storms.
What is a low-pressure system?
This front is characterized by cold air advancing, forcing warm air upward, often bringing storms.
What is a cold front?
_________: special type of radar that can detect precipitation and movement of small particles-can be used to detect thunderstorms and tornadoes.
What is a doppler radar?
Pollution from many different sources
What is nonpoint-source pollution?
This air mass is hot and dry and forms over land in tropical regions.
What is continental tropical (CT)?
These two factors determine the characteristics of an air mass.
What are temperature and moisture content?
This type of front often causes light, steady rain as warm air slides over cold air.
What is a warm front?
____: orbit earth and gather weather conditions such as information about clouds and temperature.
Tiny particles suspended in the air that can harm human lungs and health.
What is particulate matter?
This air mass is cold and dry and originates over land in polar regions.
What is continental polar (CP)?
True or False: These are the four types of air masses commonly found in weather maps: CM, CP, MT, and MP.
What is FALSE?
This front occurs when two air masses stall, causing extended periods of precipitation.
What is a stationary front?
One example of point-source pollution
What are factory emissions and power plants?
___________: the presence of harmful substances in the air that can affect human health and the environment.
The moisture content and temperature of a maritime tropical air mass is _______.
What is moist and warm?
One example of nonpoint source pollution
What are agricultural runoff and urban smog?