Dark blue cloudy sky

What is Atmosphere?

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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Glossary

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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 body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...