Figure 3.

Model solutions as a function of drag coefficient C_D for Earth. Dynamical variables are shown in (a) and thermal variables are shown in (b). There are two LEB solutions for which and hence . There is one MAF solution for which f_a is maximized. The surface-to-atmosphere temperature difference t_sa can be shown analytically to attain a maximum value 1/2ζ². For clarity, therefore, the rescaled quantity 2ζ²t_sa is plotted rather than t_sa. Earth (ξ = 2.33 × 10², ω = 1.01 × 10⁰, η = 2.19 × 10⁻³) (a) dash-dotted line, windspeed u; solid line, meridional wind u cos θ; grey line, zonal wind u sin θ; dashed line, angle θ. (b) solid line, ; dotted line, f_a; dotted grey line, t_ep; dash-dotted line, 2ζ²t_sa.