Abstract
In the previous paper, the author introduced into meteorology Hamilton's canonical equations based on the variational principle. Using the canonical equations, we obtain an exact solution in a special case where the vortex is initially in the uniform flow, and we get the same result as Syono's that the meandering motion of vortex is due to the change of basic flow, and that the ageostrophic wind acts effectively on the change of basic flow in low latitudes.
