Air Masses and Fronts. An air mass is a huge body of air that has similar 1. temperature 2. humidity (amount of water vapor in the air). Types of Air Masses. Scientists classify air masses according to two characteristics: temperature and humidity .
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2. humidity (amount of water vapor in the air)
Don’t the names and characteristics make sense?
Put together, they make the 4 basic types of air masses—with first names that tell use wet or dry and last names that tell us cold or warm!
wind belt in the US)
from west to east.
Huge air masses move around and bump into each other but they don’t mix very well because of differences in density and temperature. The area or edge where the air masses meet and do not mix becomes a front (battle area).
When air masses meet at a front, the collision often causes storms and changeable weather.
There are four types of fronts:
The kind of front that develops depends on the characteristics of the air masses and how they are moving!