Active region observed by the Hinode satellite on 14 Nov. 2007. Left panel: line-of-sight magnetogram (saturation level: ± 300 G) of the AR including magnetic field lines along the most prominent coronal loops (CL 1–2 and SL 1–3, see Bourdin et al. 2013). Middle panel: Fe xiii EUV emission synthesized from the model data. The footpoints of the loops are marked with circles, where blue indicates plasma upflows and red downflows. Right panel: vertical component of the Poynting flux at 3 Mm height. Upwards oriented vertical flux is colored in blue and downwards flux in red, both in linear scale with a saturation level of ± 50 000 W/m². The solid square indicates the hot AR core area, while the dotted rectangle outlines the FOV of only the short loops SL 1–3, see also Sect. 3.4.