Correct way to clauclate outdoor MRT values

@remyweather so the input below in the radiation component (temp) should come from where? I don’t want to use the DB from the epw file as I am seeking more accurate optimization of the courtyard design impact on lowering both indoor and outdoor temps. Also, the CFD input wouldn’t accept the results path (From Eddy simulation component). I looked up the GH recipes in the case studies and they don’t provide clear gudince on the MRT compoennet (which seems different from what I have as seen below).

As for the srf temp from LB, I can easily extract external srf temp (in image number 5) but as per this thread, it’s explicitly stated that I have to weigh those temps by the view factor: