@chris I have another question for you: in the “Outdoor Solar Temperature Adjustor” component it is possible to define only one value of the ground reflectivity. I have read this post. I can’t see the model because the posted link doesn’t exist but I want to know if there is a method to consider both the effect of context shading system due to building geometry and trees and the reflectance (or reflectivity) of vertical surface. Fort this purpose I can use the dragonfly component and the related UWG to define the urban properties, and to revise/modify usual airport weather data considering the climate of the urban area? It seems to be a good approach. What do you think?