Dark blue cloudy sky

What is Barograph?

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates a visual record on a paper chart.

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Glossary

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

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 rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.