What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
A cloud of irregular appearance, composed of irregular cloud fragments.
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.