Maps of dust colour temperature, emissivity spectral index and column density for each clump field (the three SDP fields are shown in Juvela et al. (2011) using Herschel maps). The N_H2 contours correspond to the ticks on the colour bar. For T and β, the contours are shown respectively at 2K intervals and for β = 1.85. The ellipses trace the FWHMs of the Planck clumps as inferred from the fit (see Table 1).