English
Etymology
From Gr. iso- + baros weight
Noun
wikipedia
en-noun
- (Weather) A line drawn on a map or chart connecting places of equal or constant 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); the vertical plane of a synoptic cross section, or a map of the air unaffected by surface heating or cooling. The pattern of isobars has always been a main feature of surface chart analysis. Until recently it was standard procedure to draw isobars at 3-millibar intervals. However, the advent of constant pressure charts for upper-air analysis has brought about the use of 4-millibar intervals to simplify the conversion from surface isobars to 1,000-millibar contour lines.
#physics either of two nuclides of different elements having the same mass number
- thermodynamics. A set of points or conditions at constant pressure
Category:Weather
Category:Physics
Translations
Italian: isobara f (all)
mid
See also
isotone
isotope
isotherm
isochore
isopleth
adiabat
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