Dark blue cloudy sky

What is Arctic Air?

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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Glossary

A cloud of irregular appearance, composed of irregular cloud fragments.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...