Correlation between photospheric velocity and magnetic swirls. Panel a: distribution of the correlation index (CI) between Γ₂ maps from co-temporal photospheric horizontal velocity and vertical magnetic field maps. Panel b: distribution of the percentage of velocity swirls in each frame, which overlap with photospheric magnetic swirls. The green dashed lines in both panels are the corresponding Gaussian fit results, and μ and γ are the mean and standard deviation of the Gaussian fit, respectively.