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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

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