I trully apreciate your help and time @devang !
I will keep reading and trying hydra files about microclimat to understand at least the basics and be more familiar with E+ simulations and recipes. Then, next week I will make a new post on the subject.
I found a 2 quite relevant discussion regarding LB+HB around ENVImet here #1, and here #2
Unfortunatly it seems the first discussion/experiment - well stared with LB+HB microclimat analysis - didn’t succed and ended up talking about ENVImet…
About the second discussion its a bit too abstract for me yet… also no .gh files attached…
And maybe to clarify my goal, what I want to (try) achieve is an outdoor microclimate map taking into account :
- Windspeed based on context (CFD)0
- Surface temperatures
- Albedo
- UTCI (outddoor drybulb temp, relative humidity)
- and especially accurate trees
Essentialy I think it is a combination of : This hydra + this other hydra + CFD infos
I know @chris worked alot on this too, maybe if he isn’t too busy he could give this a look 
Best regards,
Charles C.