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Emissivity of terrestrial materials in the 8-14 microns atmospheric window (1992)

Salisbury, John W. ; D'Aria, Dana M.

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Publication Date: 2019-08-28

Description: Remotely sensed infrared radiance emitted by a surface is a function both of its kinetic temperature and its spectral emissivity. Consequently, assumptions are usually made about the emissivity of earth surface materials to allow their temperatures to be determined, or vice versa. To increase the accuracy of these assumptions, the directional hemispherical spectral reflectance of a wide range of natural earth surface materials has been measured and is summarized here. These include igneous, metamorphic, and sedimentary rocks, desert varnish, soils, vegetation, water, and ice. Kirchhoff's Law can be used to predict directional spectral emissivity from these data.

Keywords: EARTH RESOURCES AND REMOTE SENSING

Type: Remote Sensing of Environment (ISSN 0034-4257); 42; 2; p. 83-106.

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