University of Edinburgh
 

BSL Geography Glossary - Isobar - definition

Definition: Isobars are found on maps that show the weather. Isobars can be circular, like the example on the screen. Isobars are similar to contours on a map, however they show air pressure values. If isobars are closer together, they show windy or stormy conditions, if they are spread apart, they show calmer weather conditions.