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 thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...