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Proceedings Paper

Influence of accounting for water-vapor continuum absorption on the calculation of radiative processes in the atmosphere
Author(s): T. Yu. Chesnokova
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Paper Abstract

At present, the tendency of global warming of the earth climate is observed. The climate depends on even small changes of radiative processes in the atmosphere. According to recent conceptions, the 'green house' effect can be connected with the increasing concentration of minor gaseous components, such as CO2, CO, CH4, and freons, therewith the contribution of the letter is comparable to that of CO2. A radiance transfer through the atmosphere is performed through spectral transmission windows, in which one of the basic roles belongs to water vapor continuum absorption. Different recent models of continuum absorption, based on the experimental data, are considered here. The long-wave radiance flux calculation is made on the basis of these models. It is shown that the error of the radiative fluxes calculation in the transmission windows is of the same order as the contribution of some atmospheric minor gaseous constituents and often exceeds it. Therefore, the accurate analytical expressions, describing the water continuum absorption and accounting for the nonlinear dependence of the absorption on humidity, temperature, wavelength and other factors, are needed.

Paper Details

Date Published: 13 January 1999
PDF: 7 pages
Proc. SPIE 3583, Fifth International Symposium on Atmospheric and Ocean Optics, (13 January 1999); doi: 10.1117/12.337011
Show Author Affiliations
T. Yu. Chesnokova, Institute of Atmospheric Optics (Russia)

Published in SPIE Proceedings Vol. 3583:
Fifth International Symposium on Atmospheric and Ocean Optics
Vladimir E. Zuev; Gennadii G. Matvienko, Editor(s)

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