Effect of Scalar Nonlinearity on the Dipole Vortex Solution
نویسندگان
چکیده
The dipole vortex solutions of the Hasegawa-Mima drift wave or equivalently, thequasi-geostrophic Rossby wave equation are shown to be split up into long-lived monopole vortices (cyclones and anticyclones) in the presence of a small scalar, i.e. KdV type, nonlinearity. The lifetime of the dipole vortex varies inversely with the strength of the scalar nonlinearity.
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