H2O self-broadening coefficients of rotation-vibration lines in the 15 500 - 16 000 cm-1 region

Leonid N. Sinitsa; Viktor I. Serdyukov; Anatoly P. Shcherbakov; Nina N. Lavrentieva; Anna S. Dudaryonok

doi:10.1117/12.2205553

19 November 2015 H₂O self-broadening coefficients of rotation-vibration lines in the 15 500 – 16 000 cm^-1 region

Leonid N. Sinitsa, Viktor I. Serdyukov, Anatoly P. Shcherbakov, Nina N. Lavrentieva, Anna S. Dudaryonok

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96800C (2015) https://doi.org/10.1117/12.2205553
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

Line broadening coefficients of the Н₂О-Н₂О system were investigated in the region 15500 – 16000 cm^-1 using a high resolution Fourier-transform spectrometer IFS-125M. The White type multipass absorption cell with a basic length of 60 cm was used. Least-square-fitting algorithm WXSPE was used to retrieve of the spectroscopic parameters from measured spectral data set. Calculations of self-broadening are performed using a semi-empirical approach. This method is further developed by using anharmonic wavefunctions in the estimates of line profiles. This approach explicitly takes into account all scattering channels induced by collisions. Calculated data are in a good agreement with the measured ones.

Citation Download Citation

Leonid N. Sinitsa, Viktor I. Serdyukov, Anatoly P. Shcherbakov, Nina N. Lavrentieva, and Anna S. Dudaryonok "H₂O self-broadening coefficients of rotation-vibration lines in the 15 500 – 16 000 cm^-1 region", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96800C (19 November 2015); https://doi.org/10.1117/12.2205553

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