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Absorption of deuterated water vapor in the 1.98 µm spectral region
Journal of Quantitative Spectroscopy and Radiative Transfer ( IF 2.3 ) Pub Date : 2021-09-02 , DOI: 10.1016/j.jqsrt.2021.107915
L. Régalia 1 , C. Capitaine 1 , B. Grouiez 1 , S. Mikhailenko 2, 3
Affiliation  

New spectra of water samples enriched by deuterium were recorded between 4500 and 5800 cm−1 using a Fourier transform spectrometer Bruker IFS 125HR combined to multi-pass cells. The spectra were recorded at room temperature with a non apodized resolution of 0.01 cm−1, using water evaporated from a D2O+H2O mixture in the liquid phase. The water vapor pressure was about 1.5 Torr and the absorption path was more than 100 m. A special attention was paid to the experimental procedure allowing to obtain HDO in the gas phase, and also to determine the partial pressure of all isotopologues. Synthetic spectra were compared to the observed ones. Numerous examples of disagreements between measurements and simulations using existing water line lists were observed for deuterated water species. Some lacks were found in the HITRAN2016 line list. A list of 580 transitions is reported that corrects erroneous and missing lines.



中文翻译:

1.98 µm 光谱区氘水蒸气的吸收

使用傅立叶变换光谱仪 Bruker IFS 125HR 与多通道池相结合,在 4500 到 5800 cm -1之间记录了富含氘的水样的新光谱。光谱在室温下以 0.01 cm -1的非切趾分辨率记录,使用从 D 2 O+H 2蒸发的水液相中的 O 混合物。水蒸气压约为1.5 Torr,吸收路径超过100 m。对允许在气相中获得 HDO 以及确定所有同位素体的分压的实验程序给予了特别关注。将合成光谱与观察到的光谱进行比较。对于氘代水物种,观察到许多使用现有水线列表的测量和模拟之间不一致的例子。在 HITRAN2016 行列表中发现了一些缺失。报告了 580 个转换列表,用于纠正错误和丢失的行。

更新日期:2021-09-17
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