No, sorry. One of Vortex’s main aims is to provide our customers with fast results. This is only possible by automating the calculation process. Accepting your own surface data as an input for the simulation would imply a certain degree of manual work (revisions, corrections, etc.) that would slow down the whole proces.
If you have finer resolution input data (and time to process it) our suggestion is that you locally run your own Microscale simulations with, for example WAsP or WindSim.