Components and parameters of the SRAD solar radiation Extraterrestrial model Incident Radiation Latitude Only those parameters Date(Solar relevant to incoming short-wave radiation Atmospheric are shown Transmittance(15) T Lapse Rate(14.3) Diffuse Radiation Sunshine fraction Topography (from DEM) NB SRAD calculates radiation Topographic Shading using a dem Albedo (3)Components and parameters of the SRAD solar radiation model Only those parameters relevant to incoming short-wave radiation are shown NB SRAD calculates radiation using a DEM