Thanks a lot for having a look at my script. The reason why I’m not using the Ladybug Tools Microclimate Map yet is because I’ve read here and here that the new microclimate maps simplify the longwave MRT calculation by not taking into account surrounding surface temperatures for the calculation, but rather use MRT for a person standing in an open field.
So, why I asked this question in the first place is because I’m interested in combining the longwave calculation method as used in Legacy with a shortwave calculation method using Radiance in Ladybug Tools. I’m planning to use the “Ladybug_MRT calculator” to calculate longwave MRT and then using either the shortwave_from_horiz_components or shortwave_from_horiz_solar formula from the SDK. As solar irradiance input, I’m using the results from a Radiance (LBT annual radiation component) study. (See also my conversation with @chris on this topic.)
The following script: MRT comparison Radiance methods.gh (752.8 KB) shows the workflow for both the shortwave_from_horiz_components method and the shortwave_from_horiz_solar method. Would you think this method of combining longwave MRT and shortwave MRT is reasonable? And if so, would you know what could explain the difference between the two methods (shortwave_from_horiz_components and shortwave_from_horiz_solar), and which one is more likely to be correct? (If I change the floor reflectance for the first method, you barely see any differences, however if the floor reflectance is changed for the second method, quite large differences are seen).
Thanks in advance for your help!