Acknowledgments: This work was completed while Dr. Fasullo was at the NOAA Climate Diagnostics Center in Boulder, CO, and was funded by NOAA’s PACS Program. The authors would like to thank Dr. J. Bergman for providing the radiation code and methodology for integrating ISCCP observations in the radiative scheme. The NCEP/NCAR Reanalysis data were provided by the Climate Diagnostics Center.