Abstract

A method is described for measuring spectral emissivity differences in the 8–13 μ region between two points on the lunar surface which may have different temperatures. Spectral emissivity differences of 0.5% on the moon can be detected in this wavelength region, excluding the strong 9.2–10 μ atmospheric ozone band where the accuracy is reduced to 2%. The application of this method to the bright planets is discussed.

© 1967 Optical Society of America

Approximate Normal Emissivity Spectra in the Infrared at Elevated Temperatures of Single-Crystal and Polycrystalline Calcium Fluoride

W. Fussell and J. Geist
Appl. Opt. 6(1) 119-124 (1967)

An 8–14 Micron Infrared Astronomical Photometer

James A. Westphal, Bruce C. Murray, and Dowell E. Martz
Appl. Opt. 2(7) 749-753 (1963)

Spectral Emissivity Calculations by the Statistical Model Applied to the 4.3-μ Bands of CO₂ at High Temperatures

Y. Ben-Aryeh
Appl. Opt. 6(6) 1049-1055 (1967)

Balloon Observations of the Radiance of the Earth Between 2100 cm⁻¹ and 2700 cm⁻¹

J. H. Shaw, R. A. McClatchey, and P. W. Schaper
Appl. Opt. 6(2) 227-230 (1967)

Spectral Measurements from 1.6 μ to 5.4 μ of Natural Surfaces and Clouds

W. A. Hovis and M. Tobin
Appl. Opt. 6(8) 1399-1402 (1967)