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Effects of atmosphere, temperature and emittance on reflected and emitted energy

Author
Kumar, R.
Published
Sep 1, 1977.
Physical Description
1 electronic document
Online Version

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Summary
The effects of temperature and emittance on the relative magnitude of reflected energy and emitter energy from a target including atmospheric effects was studied. From the calculations of energy reflected and emitted from a target including atmospheric effects using LOWTRAN 3 programs for midlatitude summer model, the following conclusions were obtained: (1) At 3.5 micrometers q is considerably less than 1 except at high temperatures and for high emittance; (2) at 4 micrometers q is of the order of magnitude equal to 1 for most targets; and (3) at 4.6 micrometers, q is considerably greater than 1 at high temperatures and high emittance. In addition, incident atmospheric emission reflected from the target was found to be negligible except for targets having low temperature and low emittance.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19790003420.
Accession ID: 79N11591.
NASA-CR-154876.
INPE-1121-PE/089.
Terms of Use and Reproduction
No Copyright.
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