Study of the Water Vapor Absorption Spectrum in the Visible Spectral Region from 19480 to 20500 cm−1


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The vibrational-rotational absorption spectrum of water vapor was recorded and analyzed in the visible spectral region from 19480 to 20500 cm−1. The measurements were carried out using an IFS-125M Fourier spectrometer with a resolution of 0.05 cm−1 at a pressure of 26.3 mbar, a temperature of (24 ± 1)°C, and optical path 24 m. We used a multipass White cell with a base length of 60 cm. A light-emitting diode was used as a radiation source. The signal-to-noise ratio was about 20000. The list of more than 420 lines has been compiled as a result of the analysis the spectrum, which includes line centers, intensities, and quantum vibrational-rotational numbers. More than 220 vibrational-rotational energy levels of 21 upper vibrational states have been determined from the experimental data.

作者简介

L. Sinitsa

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

编辑信件的主要联系方式.
Email: sln@iao.ru
俄罗斯联邦, Tomsk, 634055

V. Serdyukov

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

Email: sln@iao.ru
俄罗斯联邦, Tomsk, 634055

E. Polovtseva

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

Email: sln@iao.ru
俄罗斯联邦, Tomsk, 634055

A. Bykov

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

Email: sln@iao.ru
俄罗斯联邦, Tomsk, 634055

A. Shcherbakov

V.E. Zuev Institute of Atmospheric Optics, Siberian Branch

Email: sln@iao.ru
俄罗斯联邦, Tomsk, 634055

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