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Barometer

3:39

Barometers to Predict Weather

2:02

Weather Barometers : Understanding Barometer Readings

1:26

How Does a Barometer Work?

1:36

Mercury Barometer

2:21

The Barometer Explained

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems and frontal boundaries.
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