Magnetic and kinetic power spectrum for Run A5. Top panel: spectrum of vertical magnetic energy at nine different times around at the surface (z = 0) as a function of horizontal wavenumber k_⊥. The inlay shows the vertical energy at k_⊥H_ρ = 4 (blue line) and k_⊥H_ρ ≤ 4 (red) as a function of time t/τ_td. Bottom panel: spectrum of the kinetic energy E_K plotted the same as the top panel. The vertical dashed lines indicate k_⊥H_ρ = 4 and k_⊥H_ρ = k_fH_ρ = 30.