Cambridge Encyclopedia :: Cambridge Encyclopedia Vol. 37

isobar (thermodynamics) - Uses in News

A line of constant pressure on a graph, depicting the relationship between volume and temperature.

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The word isobar derives from the two ancient Greek words, ισος (isos), meaning 'equal', and βαρος (baros), meaning 'weight'.

In meteorology, an isobar is a line of equal or constant pressure on a graph, plot, or map; The distribution of isobars is closely related to the magnitude and direction of the wind field, and can be used to predict future weather patterns.

Uses in News

An isobar is very commonly used in news weather reporting. The isobar is the line that usually makes a circle around a centrepoint.

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