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Emissivity of terrestrial materials in the 8-14 microns atmospheric windowRemotely 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.
Document ID
19930030917
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Salisbury, John W.
(Johns Hopkins Univ. Baltimore, MD, United States)
D'Aria, Dana M.
(Maryland Univ. College Park, United States)
Date Acquired
August 16, 2013
Publication Date
November 1, 1992
Publication Information
Publication: Remote Sensing of Environment
Volume: 42
Issue: 2
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A14914
Distribution Limits
Public
Copyright
Other

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