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SlideshowReport

Air-Mass Source Regions for North America

Description
Source region – the area where an air mass acquires its properties

Classification of an air mass
By source region
By nature of surface in source region

Polar (P)
High latitudes
Cold
Tropical (T)
Low latitudes
Warm

Continental (c)
Form over land
Likely to be dry
Maritime (m)
Form over water
Humid air

Four basic types of air masses
Continental polar (cP)
Continental tropical (cT)
Maritime polar (mP)
Maritime tropical (mT)
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