Azimuthally averaged profiles for intensity (top-left), flow velocity (top-right), divergence (bottom-left), and radial velocity (bottom-right) for all pores. The profiles are computed for normalized radial distances, where r/R_pore = 0 and r/R_pore = 1 indicate the center and the boundary of the pores, respectively. The frequency of occurrence is shown as a shaded background, where darker regions refer to more commonly encountered values. In the intensity profile (top-left), the solid curve represents the percentage of increase in average intensity, and the dashed line reflects our choice of the intensity threshold (0.85 I₀) delimiting pores. The white line corresponds to an intensity gradient of .