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 thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

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

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...