ALMA observations of the CO(3 − 2) emission in the target galaxy NGC 3227 and the clumpiness computation applied within a 400 pc × 400 pc box around the AGN. First panel: CO(3 − 2) emission at native resolution (10.5 × 9.4 pc), with contours at (3, 5, 10, 20, 30, 50)×σ. Second panel: CO(3 − 2) emission smoothed to a common physical resolution of 16 pc, using contours at the same σ levels. Third panel: CO(3 − 2) emission further smoothed with a Gaussian kernel of FWHM 50 pc, with the same contour levels. Fourth panel: Clumpiness map computed with Method #1 (see Section 3.3), with contours every 0.1 from 0 to 1. In all panels the two ellipses correspond to circles with radii of 50 and 200 pc in the galaxy plane, projected onto the sky. The red ellipse within a square in the bottom right of each panel shows the native ALMA beam (10.5 × 9.4 pc in this case).