Dear Marie,
I asked Amy Robertson who led OC4 Phase II and she said that the Mann wind files are not stored on any server due to the large size (abour 400 MB each). The wind files for OC4 Phase II were generated by Torben Larsen of DTU Wind Energy using DTU’s IEC Turbulence Simulator. I suggest reaching out to Torben to ask him for the associated input files he used.
Best regards,