What is an air masses?
An air mass is a large mass of air in which temperature and humidity are the same throughout.
For an air mass to form the air must stay over the area long enough to pick up the characteristics of the area.
Air masses are named after where they are formed.
A maritime air mass forms over water and are moist and is represented with a lowercase m.
A continental air mass forms over land and are dry and is represented with a lowercase c.
In addition, an air mass is named by its temperature.
A tropical air mass is warm and is represented with a capital T.
A polar air mass is cold and is represented with a capital P.
An arctic air mass is very cold and is represented with a capital A.
An air mass contains two names.
The first name is always lower case and describes where it formed and the amount of moisture the air mass contains
The second name is capitalized and describes the temperature of the air mass.
Types of air masses
Continental Air Masses
A cT air mass is a continental Tropical which means it will form over land, and will contain dry and warm air.
A cP air mass is a continental Polar and is dry and cold.A cA or cAA is a continental artic or continental Antarctica and are dry and very cold.
Maritime Air Masses
A mP air mass represents a maritime polar air mass and forms over water and will be moist and cold.
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