isallobar


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Related to isallobar: Isodrosotherm

isallobar

Meteorol a line on a map running through places experiencing equal pressure changes

isallobar

[īs′al·ə‚bär]
(meteorology)
A line of equal change in atmospheric pressure during a specified time interval; an isopleth of pressure tendency; a common form is drawn for the three-hourly local pressure tendencies on a synoptic surface chart.