TY - JOUR T1 - Simple Solar Spectral Model for Direct and Diffuse Irradiance on Horizontal and Tilted Planes at the Earth's Surface for Cloudless Atmospheres JF - Journal of Climate and Applied Meteorology Y1 - 1986 A1 - Bird, Richard E. A1 - Riordan, Carol VL - 25 UR - http://journals.ametsoc.org/doi/abs/10.1175/1520-0450%281986%29025%3C0087%3ASSSMFD%3E2.0.CO%3B2 CP - 1 J1 - J. Climate Appl. Meteor. KW - Bird1986 ER -