The Atmosphere

Air and Air Pressure

What is a barograph

Resembling a seismograph, a barograph records changes in air pressure over time. A recording arm with a pen on one end moves side to side, drawing a line over a paper or foil chart that moves over a rotating barrel.


This is a web preview of the "The Handy Weather Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App