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

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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 cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

Snow that rises to 8 feet or higher.

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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...