OpenFOAM / roughnessToFoam

[joao.oliveira]

Dear friends,

I'd like to simulate atmospheric flow over complex terrain with OpenFOAM. I already have orographic maps, however, i don't know to convert MODIS land use data into aerodynamic roughness maps and how to combine it with the oro map using roughnessToFoam. Could you help me?

Thanks in advance!