
This package provides version 4.0 of OPAC as described by Koepke, P., Gasteiger, J., and Hess, M.: Technical Note: Optical properties of desert aerosol with non-spherical mineral particles: data incorporated to OPAC, Atmos. Chem. Phys., 15, 5947–5956, https://doi.org/10.5194/acp-15-5947-2015, 2015. The original software and data package was available for download at http://www.rascin.net since 30/05/2015. Sadly, the maintainer of this website and co-author of OPAC, Michael Hess, is no longer among us and www.rascin.net was shut down. The package provided here is a repacked version of OPAC 4.0 where only the archive format was changed. Packaged by Josef Gasteiger (02/11/2022) - E-Mail: contact(at)mopsmap.net