Distributions of fit parameters for the decomposition of the GRS (left), MWISP (middle), and the difference between the two data sets (right). The rows show normalised 2D histograms of: peak main beam brightness temperature and velocity dispersion values (top), centroid velocity and peak main beam brightness temperature values (middle), centroid velocity and velocity dispersion values (bottom). Colourbars in all panels indicate the values of the normalised 2D distributions.