Data on the field G1.94+6.07. Shown are the colour temperature map derived from SPIRE data (frame a, 40″ resolution), the 250 μm SPIRE surface brightness map (frame b, 18″ resolution), the AKARI wide filter maps at 140 μm and 90 μm (frames c and e), the visual extinction A_V derived from 2MASS catalog stars (frame d), and the WISE 22 μm intensity (frame f). In the subsequent figures, if public WISE data are not available, frame f shows the 25 μm IRAS map instead. The respective beam sizes are indicated in the lower right hand corner of each frame. The positions of selected clumps (black circles; see Sect. 3.2.1) and the reference regions used for background subtraction (white circle; see Sect. 3.2.1) are also shown.