Rossby solitary waves generated by a wavy bottom are studied in stratified fluids. From the quasigeostrophic vorticity equation\r\nincluding a wavy bottom and dissipation, by employing perturbation expansions and stretching transforms of time and space,\r\na forced KdV-ILW-Burgers equation is derived through a new scale analysis, modelling the evolution of Rossby solitary waves.\r\nBy analysis and calculation, based on the conservation relations of the KdV-ILW-Burgers equation, the conservation laws of\r\nRossby solitary waves are obtained. Finally, the numerical solutions of the forced KdV-ILW-Burgers equation are given by using\r\nthe pseudospectral method, and the evolutional feature of solitary waves generated by a wavy bottom is discussed. The results\r\nshow that, besides the solitary waves, an additional harmonic wave appears in the wavy bottom forcing region, and they propagate\r\nindependently and do not interfere with each other. Furthermore, the wavy bottom forcing can prevent wave breaking to some\r\nextent.Meanwhile, the effect of dissipation and detuning parameter on Rossby solitary waves is also studied. Research on the wavy\r\nbottom effect on the Rossby solitary waves dynamics is of interest in analytical geophysical fluid dynamics.
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