Emissivity of the Main Greenhouse Gases

Russian Journal of Physical Chemistry B, 2013, Vol. 7, No. 3, pp. 346–353. © Pleiades Publishing, Ltd., 2013.

Original Russian Text © A.E. Galashev, O.R. Rakhmanova, 2013, published in Khimicheskaya Fizika, 2013, Vol. 32, No. 6, pp. 88–96.

A. E. Galashev and O. R. Rakhmanova

Abstract—Based on the high-resolution data on the absorption lines of gases from the HITRAN open international database in conjunction with inverse Fourier transform, the autocorrelation function of the total dipole moment of the molecules of the main greenhouse gases, such as H₂O, CO₂, O₃, N₂O, and CH₄, are determined. The spectral absorption coefficient and spectral radiance of these gases in the investigated IR region is calculated. An analysis of the emissivity of each of the gases is performed. An efficiency criterion of IR absorption and emission is introduced, according to which the studies gases are ranked.

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