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.
Glossary
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
Snow that rises to 8 feet or higher.
The branch of science dealing with the laws of motion of air or other gases.
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
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