Two sky luminance distributions are given for overcast sky above snow-covered terrain, and directional luminous reflectance data are presented which were obtained under these skies. Luminous reflectances computed from Krinov spectral reflectance data for a variety of natural terrains measured under overcast are also included.
© 1966 Optical Society of America
Original Manuscript: December 6, 1965
Published: June 1, 1966
Jacqueline I. Gordon and Peggy V. Church, "Overcast Sky Luminances and Directional Luminous Reflectances of Objects and Backgrounds under Overcast Skies," Appl. Opt. 5, 919-923 (1966)