Polar Air Cargo Worldwide Inc. is a cargo airline based in Purchase, New York, United States. It operates scheduled all-cargo services to North America...

source regions. Colder air masses are termed polar or arctic, while warmer air masses are deemed tropical. Continental and superior air masses are dry, while...

A polar route is an aircraft route across the uninhabited polar ice cap regions. The term "polar route" was originally applied to great circle navigation...

these two air masses, each at very different temperatures. The polar front arises as a result of cold polar air meeting warm tropical air. It is a stationary...

creation of a concentrated polar jet is the undercutting of sub-tropical air masses by the more dense polar air masses at the polar front. This causes a sharp...

tropospheric polar vortex A circumpolar vortex, or simply polar vortex, is a large region of cold, rotating air; polar vortices encircle both of Earth's polar regions...

Atlas Air Worldwide Holdings is an airline holding company based in Purchase, New York. The group owns Atlas Air, Polar Air Cargo, and has a freighter...

The Arctic Circle is one of the two polar circles, and the most northerly of the five major circles of latitude as shown on maps of Earth at about 66°...

cyclonic. This rotational flow moves polar air towards the equator on the west side of the low, while warm air move towards the pole on the east side...

comic series Polar Air Cargo, an American airline Polar Airlines, a Russian airline Polar Beverages, an American soft drink company Polar Electro, a Finnish...