2014•Chinese Physics BOpen access

The interaction between zonal flow and Rossby waves with scalar nonlinearity

Xiping Zhang, Qiang Zhao

Abstract

The nonlinear interactions between zonal flow and Rossby waves are studied by numerical simulations with focus on the effects of scalar nonlinearity. The numerical results show that the scalar nonlinearity has an appreciable influence on the Rossby dipole evolution and can reduce the threshold of the disturbance energy increase.

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Key concepts: Rossby wave, Nonlinear system, Rossby radius of deformation, Scalar (mathematics), Physics, Flow (mathematics), Rossby number, Focus (optics)