Chapter Test B Flashcards
Anti-cyclone
A weather event in which air sinks and flows outward from a center of high-pressure with winds circulating clockwise in the northern hemisphere
One weather event that scientist have not tried to control is
Tornadoes
Which of the following is not a main type of Air mass
Mid latitude tropical
All the following instruments measure lower atmospheric conditions except
Radiosondes
In instrument package that is carried high into the atmosphere buy a helium filled weather balloon to measure relative humidity, air pressure, and air temperature is called
Radiosonde
An air mass that originates in Canada and brings dry cold weather is classified as
Continental polar
An air mass that originates in the Pacific or Atlantic ocean and bring warm, moist air to a region is classified as
Maritime tropical
A system that uses reflected radio waves to determine the velocity and location of object is called
Radar
An air mass that originates in the southwestern United States in brings dry warm air to a region is classified as
Continental tropical
When a fast-moving cold front overtakes a warm front in lifts the warm air mass off the ground completely is called a
Occluded front
An air mass that originates in the Pacific or Atlantic ocean and brings cold, moist air to a region is classified as
Maritime polar
Explain how an air mass develops
The source regions determine the temperature and humidity of the air mass
How do scientists use computers to understand weather
They can stored data and do mathematically equations
Compare the formation of a cold front to that of a warm front
Cold fronts form when a cold air mass overtakes a warm air mass. A warm front is when a warm air mass overtakes a cold air mass
How do scientists use computer models to forecast weather
Computer models can show the possible weather conditions for over several days
