Isobar: Difference between revisions
From Glossary of Meteorology
No edit summary |
m (Rewrite with Template:Term and clean up) |
||
| Line 1: | Line 1: | ||
{{Term | |||
|Display title=isobar | |||
{{ | |Definitions={{Definition | ||
|Num=1 | |||
|Meaning=A line of equal or constant [[pressure]]; an [[isopleth]] of pressure. | |||
|Explanation=In meteorology, it most often refers to a line drawn through all points of equal [[atmospheric pressure|atmospheric pressure]] along a given reference surface, such as a [[constant-height surface]] (notably [[mean sea level|mean sea level]] on surface charts), an [[isentropic surface]], the vertical plane of a [[synoptic]] cross section, etc. The pattern of isobars has always been a main feature of surface-chart [[analysis]]. Isobars are usually drawn at intervals of one [[millibar]] or more, depending on the [[scale]] needed to identify or illustrate a specific meteorological pattern. | |||
}} | |||
= | }} | ||
Latest revision as of 11:39, 30 March 2024
A line of equal or constant pressure; an isopleth of pressure.
In meteorology, it most often refers to a line drawn through all points of equal atmospheric pressure along a given reference surface, such as a constant-height surface (notably mean sea level on surface charts), an isentropic surface, the vertical plane of a synoptic cross section, etc. The pattern of isobars has always been a main feature of surface-chart analysis. Isobars are usually drawn at intervals of one millibar or more, depending on the scale needed to identify or illustrate a specific meteorological pattern.
