Problem of the absorption enhancement for 0.94-um band in water vapor

Vladimir F. Golovko

doi:10.1117/12.375402

25 January 2000 Problem of the absorption enhancement for 0.94-μm band in water vapor

Vladimir F. Golovko

Proceedings Volume 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy; (2000) https://doi.org/10.1117/12.375402
Event: 13th Symposium and School on High-Resolution Molecular Spectroscopy, 1999, Tomsk, Russian Federation

Abstract

The recent in situ experiment by Vogelmann et al devoted to studies of the excess absorption to be for the clear humid atmosphere within the 0.94 micrometers water band in the visible region shows that the problem of the absorption enhancement is caused rather by the uncounted molecular absorption into bands than by an aerosol absorption. On the other hand, our recent studies of the nonlinear continuum absorption of the pure water vapor had described the continuum absorption of the pure water vapor in the MW and IR. It is interesting to apply the nonlinear continuum, that is followed from the fundamental properties of the hypothetical absorption scattering interaction, to account for the absorption in the near IR region such as the band of 10400 - 10900 cm^-1. The observed enhancement of 5 - 10% in comparison with a method using the Lorentzian is calculated and this is a result of the influence of UV bands of nitrogen on the selective continuum of the pure water. In a whole, the approach developed earlier has been successfully extended to the foreign broadening case.

Citation Download Citation

Vladimir F. Golovko "Problem of the absorption enhancement for 0.94-μm band in water vapor", Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); https://doi.org/10.1117/12.375402

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