Abstract

Spectra in the 8.5–16-μ interval, taken at various altitudes over relatively uniform desert terrain, show attenuation of upwelling radiation by atmospheric gases and haze through the entire spectral interval. Equivalent blackbody temperatures, even in the clearest part of the window, show a drop that could introduce serious errors into remote sensing of surface temperatures. Surface emissivity characteristics are discernible at low altitudes but are somewhat masked by ozone at 10-km altitudes.

© 1968 Optical Society of America

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)

The Effect of Cirrus Clouds on 8–13-μ Infrared Sky Radiance

Freeman F. Hall
Appl. Opt. 7(5) 891-898 (1968)

Measured and Calculated Earth–Atmosphere Radiance in the 8–14-μ Window as a Function of Altitude

M. Griggs
Appl. Opt. 8(1) 171-177 (1969)

Spectral Properties of Clouds from 2.5 μ to 3.5 μ

Henry H. Blau and Ronald P. Espinola
Appl. Opt. 7(10) 1897-1901 (1968)

A Physical Model of Cirrus 8–13-μ Infrared Radiance

Freeman F. Hall
Appl. Opt. 7(11) 2264-2269 (1968)