Abstract
The modifications to the structure and propagation characteristics of the double Kelvin wave due to various parameterizations of dissipative effects; namely, a lateral eddy viscosity and diffusion with coefficients AM, AH, and Rayleigh friction and Newtonian cooling with coefficients rM, rH, are examined. Under the assumption of geostrophy in the alongstep direction, and AM = AH, rM = rH, analytic expressions may be obtained and asymptotic limits derived.