PDR modeling results for Draco. Parameter space of hydrogen surface density n and FUV field calculated from the KOSMA-τ model for 0.1 M_⊙ clumps taken from the PDR toolbox for the Draco Front 1 and Front 2 (left) positions and the Nose 1 and Nose 2 (right) positions. The isocontours at different colors show the observed line integrated intensities or ratios, including the rms noise. The estimated FUV field for each source from the 160 µm flux is indicated by a red dashed line. The FUV field from the census of the stars is given as a dashed blue line.