The Surface and Atmospheric Radiation Budget (SARB) working group, part of NASA Langley Research Center's Clouds and the Earth's Radiant Energy System (CERES) mission, will calculate profiles of broadband shortwave and longwave fluxes from the surface of the Earth to the top of the atmosphere. The radiation transfer code which will be used was developed by Qiang Fu and Kuo Nan Liou. For proper results the surface boundary conditions must be specified as a function of the spectral bands of the model based upon the varying scenes that the instrument will be observing. For your perusal we've placed a set of images that contain the data which will be the starting points for these lower boundary conditions. The maps themselves can be explored using the links in theleft navigation bar. For a more detailed description of how these surface maps are applied in the SARB processing consider reading:

Surface Properties Description Page