Simple Solar Spectral Model for Direct and Diffuse Irradiance on Horizontal and Tilted Planes at the Earth's Surface for Cloudless Atmospheres

Figure 4-7. Comparison between Global Horizontal Irradiance Measured on 5 August 1981, Golden, CO, and Modeled Data Using SPCTRAL2 (o on the graph.)


Return to RReDC Homepage ( http://www.nrel.gov/rredc )