(a)
(b)
(c)
(d)
Figure 7: Comparison of simulated and observed (a) short-wave downward radiation, (b) short-wave upward radiation, (c) long-wave downward radiation, and (d) long-wave upward radiation on 7, 23, 2013, for the greened site in front of the façade simulated with ENVI-met 3 (E0a), unforced (E0) and forced ENVI-met 4 (E1), RayMan without (R0) and with global radiation from observation (R1), and SOLWEIG without (S0) and with global radiation from observation (S1). The gray areas indicate the accuracy range of the observations.