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

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

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

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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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

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

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...