Comparison of the radii of FUGIN clumps matched to CHIMPS clumps. The distances of the FUGIN clumps are set to match these of their corresponding CHIMPS clumps. The red line represents the fitted relationship, with a correlation coefficient of 0.6. The color bar on the right indicates the local density of data points, normalized to unity, meaning that the region with the highest concentration of points has a normalized density of 1.