Variation along the loops in the 1D models for the parameterisation of the Ohmic (red) and Alfvénic heating (green). The arc length is normalized to the loop length of 45 Mm. The top panels show the temperature and the density, the velocities are very close to zero. The bottom panels show the coronal emission synthesized from the model as it would be observed with AIA in the 131 Å band c) and the 171 Å band d). See Sect. 5.