Semi-empirical calculation of 12CH3D-H2 broadening coefficients and their temperature-dependence exponents for rovibrational lines in parallel bands

被引：0
作者：
Dudaryonok, A. S. [1 ]
Lavrentieva, N. N. [1 ]
Buldyreva, J. [2 ]
机构：
[1] Russian Acad Sci, VE Zuev Inst Atmospher Opt, Siberian Branch, 1 Akademishian Zuev Sq, Tomsk 634021, Russia
[2] Univ Bourgogne Franche Comte, Inst UTINAM, UMR CNRS 6213, 16 Route Gray, F-25030 Besancon, France
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2019年 / 229卷
关键词：
Monodeuterated methane; H-2-broadening coefficients; Temperature exponents; Semi-empirical calculation; Planetary atmosphere; DIODE-LASER MEASUREMENTS; H-2-BROADENING COEFFICIENTS; SHIFT COEFFICIENTS; NU(3) BAND; METHANE; H-2; ABSORPTION; CH3D; N-2;
D O I：
10.1016/j.jqsrt.2019.03.008
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Hydrogen-broadening coefficients and their temperature-dependence exponents for (CH3D)-C-12 (J, K) lines in the parallel (Delta K =0) nu(3) band are computed by a semi-empirical method employing analytical Andersontype expressions with a few-parameter correction factor introduced to account for various deviations from Anderson's theory approximations. On the basis of experimentally observed J-dependences of line widths, this correction factor is taken in the traditional two-parameter form, and the parameters are determined from fits on some room-temperature measurements. After validation by comparison with available experimental data, the calculations are done for extended ranges of rotational quantum numbers (0 <= J <= 70, 0 <= K <= 20) typically requested for spectroscopic databases. To get the temperature-dependence exponents, computations with the room-temperature parameters' values are repeated for various temperatures in the room-temperature containing range 200-400K recommended for HITRAN and least-squares fit procedures are applied. Detailed P-Q-R-line lists are provided. With negligible vibrational dependence of CH3D line widths, these data can be also employed for other A(1)-type bands. (C) 2019 Elsevier Ltd. All rights reserved.
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页码：157 / 165
页数：9
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