Short-dashed, dotted, long-dashed, solid, and dot-dashed curves: g_z(k̃_x) (top panel) and g(k̃_x) (bottom panel) for transient growth of the particular SFH at q = −5, −1.5, 0.5, 1.5, and 1.6, respectively. In each case, k_x and k_z are chosen in such a way that SFH attains the constant value g_z(k̃_{x max}) = g_{z max} ≈ 180ϵ (see Sect. 3.3 for definition of ϵ). This value of g_{z max}/ϵ is obtained employing the procedure (ii) (see this section) in order to fit the transitional dependence R_T(q) found in the tall box simulations of turbulence in the cyclonic regime (see Sect. 6) for details and the dashed curve on the top panel in Figs. 6 and 8. Solid and dashed horizontal lines on the bottom panel mark the value of corresponding g_{z max} for ϵ = 1 and ϵ = 0.1, respectively.