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Separation of temperature and emittance in remotely sensed radiance measurements

Authors
Journal
Remote Sensing of Environment
0034-4257
Publisher
Elsevier
Publication Date
Volume
42
Issue
2
Identifiers
DOI: 10.1016/0034-4257(92)90093-y
Disciplines
  • Physics

Abstract

Abstract The remote determination of surface temperature and surface spectral emittance by use of airborne or satellite-borne thermal infrared instruments is not straightforward. The radiance measured is a function of surface temperature, the unknown surface spectral emittance, and absorption and emission in the intervening atmosphere. With a single measurement, the solution for temperature and spectral emittance is underdetermined. This article reviews two of the early approximate methods which have been fairly widely used to approach this problem.

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