Damped equatorial Kelvin and Rossby response
= Damped equatorial Kelvin and Rossby response
With Rayleigh friction rate $\gamma$ and thermal damping rate $\alpha$, a steady localized equatorial forcing produces an eastward Kelvin tail of zonal scale $c/\sqrt{\alpha\gamma}$ and westward Rossby tails of scales $c/[(2n+1)\sqrt{\alpha\gamma}]$. Their common meridional scale is $[c\sqrt{\gamma/\alpha}/\beta]^{1/2}$.