It's still qualitative however, and getting a better handle on the question requires radiative transfer modeling and simulations that can adequately handle a greenhouse - free atmosphere without blowing up. (skepticalscience.com)
Satellite instruments provide global maps of surface UV irradiance by combining backscattered radiance measurements with radiative transfer models. (pubs.giss.nasa.gov)
This fast radiative transfer model developed and maintained by the NWP SAF is used by OSI SAF for SST retrieval (osi-saf.org)