#(Or barotropic wave.) A wave disturbance in a two-dimensional flow, the driving mechanism for which lies in the variation of vorticity of the basic current and/or in the variation of the vorticity of the earth about the local vertical.
Such wave disturbances are also known as Rossby waves.
See also barotropic instability.
- An atmospheric wave of cyclonic scale in which troughs and ridges are approximately vertical.
See cyclone wave, short wave, barotropy;
compare baroclinic disturbance.
