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Proceedings Paper

Radiation properties of water vapor in IR range for the thermodynamically inhomogeneous optical paths
Author(s): Olga K. Voitsekhovskaya; Victor N. Cherepanov; Alexander Yu. Zaprjagaev; Zlata A. Voitsekhovskaya
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Paper Abstract

The report is devoted to the research of IR spectrum of high temperature (T < 3000 K) and thermodynamic inhomogeneous heat water vapor. The physical models of the description factors of absorption and emissivity within the framework of direct accounts line by line are discussed. The main attention is given to the form of the spectral lines parameters databases of water vapor based on generating information system HOTGAS-H20. Assuming that the radiation diffusion and local thermodynamic balance are fulfilled inside a layer, the emissivity calculations for various path conditions of concentration and temperatures 300-3000 K are designed. Thus, stratified environment formed by an user was simulated by layers of various thickness. Approximations of absorption coefficients simplifying considerably calculations are proposed. The estimation of the nonselective absorption of water vapor in the range 8-12 microns for temperatures I 500-3000 K are given for the first time.

Paper Details

Date Published: 21 April 2006
PDF: 9 pages
Proc. SPIE 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 61600I (21 April 2006); doi: 10.1117/12.675227
Show Author Affiliations
Olga K. Voitsekhovskaya, Tomsk State Univ. (Russia)
Victor N. Cherepanov, Tomsk State Univ. (Russia)
Alexander Yu. Zaprjagaev, Tomsk State Univ. (Russia)
Zlata A. Voitsekhovskaya, Tomsk State Univ. (Russia)

Published in SPIE Proceedings Vol. 6160:
Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics
Gelii A. Zherebtsov; Gennadii G. Matvienko, Editor(s)

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