Impact of H2O broadening effect on atmospheric CO and N2O detection near 4.57 mu m

doi:10.1016/j.jms.2016.11.001

	Impact of H2O broadening effect on atmospheric CO and N2O detection near 4.57 mu m
	Deng, Hao 1; Sun, Juan 1; Liu, Ningwu 1; Wang, Hongliang 2; Yu, Benli 1; Li, Jingsong 1
刊名	JOURNAL OF MOLECULAR SPECTROSCOPY
	2017-01
卷号	331 页码:34-43
关键词	QCLS Nitrous oxide Carbon monoxide H2O broadening effect
ISSN号	0022-2852
DOI	10.1016/j.jms.2016.11.001
英文摘要	A tunable quantum cascade laser spectrometer (QCLS) was used to study H2O broadening coefficients for CO and N2O transitions at 4.57 pm region, which contains well-characterized and relatively isolated transitions of appropriate line strengths for sensitive gas detection. The influence of H2O broadening effect on CO R(11) and N2O P(38e) transitions at 2186.639 cm(-1) and 2187.099 cm(-1), respectively, was detailed investigated. Our measurements indicate that H2O broadening coefficients are 1.8 and 1.9 times higher than the corresponding air-broadening parameters, respectively. Based on the experimental data, our simulation confirmed that the WMS-2f shapes of CO and N2O lines will be significantly affected by variations of the water vapor mixing ratio, while no significant dependence on target concentration, and prove that the difference between air- and H2O-broadenings thus cannot be neglected if one wants to measure gas concentrations in a high humid environment with a sub-percent precision. (C) 2016 Elsevier Inc. All rights reserved.
资助项目	National Program on Key Research and Development Project[2016YFC0302202]
WOS研究方向	Physics ; Spectroscopy
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000391908800007
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3284]
专题	自然资源部第一海洋研究所
作者单位	1.Anhui Univ, Minist Educ, Key Lab OptoElect Informat Acquisit & Manipulat, Hefei 23061, Peoples R China; 2.State Ocean Adm, Natl Deep Sea Ctr, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Deng, Hao,Sun, Juan,Liu, Ningwu,et al. Impact of H2O broadening effect on atmospheric CO and N2O detection near 4.57 mu m[J]. JOURNAL OF MOLECULAR SPECTROSCOPY,2017,331:34-43.
APA	Deng, Hao,Sun, Juan,Liu, Ningwu,Wang, Hongliang,Yu, Benli,&Li, Jingsong.(2017).Impact of H2O broadening effect on atmospheric CO and N2O detection near 4.57 mu m.JOURNAL OF MOLECULAR SPECTROSCOPY,331,34-43.
MLA	Deng, Hao,et al."Impact of H2O broadening effect on atmospheric CO and N2O detection near 4.57 mu m".JOURNAL OF MOLECULAR SPECTROSCOPY 331(2017):34-43.