Hierarchically clustered heat map of the different correlations between datasets (GLIMPSE at 3.6, 4.5, 5.8, and 8 µm; MIPSGAL at 24 µm; Hi-GAL from 70 µm to 500 µm, and Planck at 850 µm and 1.38 mm). All datasets have been smoothed to an angular resolution of 5′ and normalized to the 160 µm data. Kendall, Pearson, and Spearman’s correlation coefficients are given in each case.