Dark blue cloudy sky

What is Lightning?

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

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Glossary

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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

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

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

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

A very cold high pressure that originates over the Arctic Ocean.

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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

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