m.sinesi-wpd

I have a wind calculation in the wind pro Meteo object equal to 6,07m/s at the turbine hub. But in the simulation with wasp in Park object, if I put a turbine at the same position of the Met site the wind become 6.5 m/s. The site is a very complex site. I have changed the roughness but it doesn’t affect the wind just in a small amount, let’s say 6,47m/s. I make more frequent the contour line from 10 to 2 m. Nothing. The RIX in any case is not more than 3%. What do you suggest?