Barotropic System
A weather system in which temperature and pressure surfaces are coincident, i.e., temperature is uniform (no temperature gradient) on a constant pressure surface.
Barotropic System - the term barotropic system usually is used in a relative sense to describe systems in which the isotherms and height contours are nearly parallel everywhere on a surface of constant pressure; directional wind shear is weak; ...
As a rule, a true equivalent barotropic system can never be achieved in the real atmosphere.
 See also: Vertical shear, Supercell, Cyclone, High pressure, Baroclinic
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