Correlation ρ(v₂₈,v₈₀) (left) and mean velocity ratio v₂₈/v₈₀ (right) between the flow maps computed from full-resolution images (v₂₈) and from images convolved with a Gaussian of FWHM = 160 km (v₈₀) to match the spatial resolution of Hinode G-band images. For both cases, flow maps were computed with time cadence Δt = 10–480 s and Gaussian sampling windows with an FWHM = 400–1800 km, shown here as 8 × 8 square blocks.