DEM results of the 2013 May 13 flare. (a)–(f) EM maps in integrated temperature ranges. Maps are rotated for a better visibility. (g), (h) Comparison of DEM distributions from the PS and nearby reference locations. The EM curves are sampled from locations indicated by small boxes (averaged over 3 × 3 pixel²) in panel (d), PSs in blue and BGs in black, respectively. The light blue and gray curves are corresponding uncertainties from 250 Monte Carlo simulations.