Water vapor line broadening and shift coefficients induced by carbon dioxide in the 8600–9000 cm-1 spectral region

IF 1.9 3区物理与天体物理 Q2 OPTICS

Journal of Quantitative Spectroscopy & Radiative Transfer Pub Date : 2025-07-05 DOI:10.1016/j.jqsrt.2025.109577

T.M. Petrova, A.M. Solodov, A.A. Solodov, V.M. Deichuli, N.N. Lavrentieva, A.S. Dudaryonok

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引用次数: 0

Abstract

Water vapor line broadening and shift coefficients induced by carbon dioxide are important for different problems of atmospheric physics, astrophysics, and laser physics. The database HITRAN contains the mentioned parameters for non-Earth atmospheres such as Mars and Venus, but it is not complete. Measured and computed line-broadening and shift coefficients for R-, P- and Q-branches in the ν₁+ν₂+ν₃ band in comparison with data in the ν₂+ν₃ band are presented. New absorption spectra were recorded using a Bruker IFS 125 HR FTIR spectrometer, a multispectrum fitting procedure was applied to recover the spectral line parameters using the speed-dependent Voigt profile. Line parameters of H₂OCO₂ were computed by a semi-empirical method for rotational quantum numbers J from 0 till 20. The vibrational dependence of obtained data is discussed.

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8600 ~ 9000 cm-1光谱区二氧化碳引起的水汽谱线展宽系数和位移系数

在大气物理、天体物理和激光物理的不同问题中，二氧化碳引起的水汽谱线加宽和位移系数是很重要的。数据库HITRAN包含上述非地球大气的参数，如火星和金星，但它并不完整。给出了ν1+ν2+ν3波段的R-、P-和q -分支的实测和计算的谱宽和位移系数，并与ν2+ν3波段的数据进行了比较。使用Bruker IFS 125 HR FTIR光谱仪记录新的吸收光谱，采用多光谱拟合程序利用速度依赖的Voigt曲线恢复谱线参数。在0 ~ 20的旋转量子数J范围内，用半经验方法计算了h2o2 - co2的线参数。讨论了所得数据的振动相关性。

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来源期刊

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.