Abstract

The spectral diffuse reflectance of various types of desert terrain was measured at 500 A intervals in the spectral range 4000 A to 6500 A. For all types investigated except basaltic lava, the diffuse reflectance increased with increasing wavelength of the incident radiation. In general, the diffuse reflectance at 6500 A was approximately twice that at 4000 A. The various types of surfaces showed large differences in diffuse reflectance; the values ranging from 0.03 to 0.74. Measurements made of radiance from a surface of brush and wind-blown sand showed that the reflection does not follow Lambert’s law.

© 1956 Optical Society of America

Reflectance of Goldblack Deposits, and Some Other Materials of Low Reflectance from 254 mμ to 1100 mμ. The Scattering-Unit-Size in Goldblack Deposits*

Louis Harris and Kermit F. Cuff
J. Opt. Soc. Am. 46(3) 160-163 (1956)

Spectral Radiance of the Carbon Arc from 1900 to 2500 Angstroms

Francis S. Johnson
J. Opt. Soc. Am. 46(2) 101-103 (1956)

Mirror Coatings for Low Visible and High Infrared Reflectance*

Georg Hass, H. H. Schroeder, and A. F. Turner
J. Opt. Soc. Am. 46(1) 31-35 (1956)

Photometry of the Solar Aureole

Gordon A. Newkirk
J. Opt. Soc. Am. 46(12) 1028-1037 (1956)

Spectral Emissivity of Rhenium

D. T. F. Marple
J. Opt. Soc. Am. 46(7) 490-494 (1956)