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  2. 广州地球化学研究所
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  4. 有机地球化学国家重点实验室
Intercomparison of NO3 under Humid Conditions with Open-Path and Extractive IBBCEAS in an Atmospheric Reaction Chamber

文献类型：期刊论文

作者Wang, Meng7,8; Lou, Shengrong7,8; Hu, Weiwei5,6; Wang, Haichao3,4; Wang, Xinming5,6; Fan, Fengxian8; Varma, Ravi2; Venables, Dean S.1; Chen, Jun8
刊名REMOTE SENSING
出版日期2023
卷号15期号:3页码:739
关键词ENHANCED ABSORPTION SPECTROMETER IN-SITU MEASUREMENTS CAVITY RING NEAR-ULTRAVIOLET AMBIENT NO3 CROSS-SECTIONS REAL-TIME N2O5 HONO SPECTROSCOPY
ISSN号2072-4292
DOI10.3390/rs15030739
英文摘要We report an open-path incoherent broadband cavity-enhanced absorption spectroscopy (OP-IBBCEAS) technique for in situ simultaneous optical monitoring of NO2, NO3, and H2O in a reaction chamber. The measurement precision values (1σ) are 2.9 ppbv and 2.9 pptv for NO2 and NO3 in 2 s, respectively, and the measurement uncertainties are 6% for NO2 and 14% for NO3. Intercomparison of measured concentrations of NO2 and NO3 by open-path and extractive IBBCEAS was carried out in the SAES-ARC reaction chamber during the reaction of NO2 with O3. The measurement accuracy of OP-IBBCEAS is verified by an NO2 intercomparison and the NO3 transmission efficiency of the extractive IBBCEAS is determined by comparison against the in situ NO3 measurement. The relationship between H2O absorption cross section and its mixing ratio at 295 K and 1 atm was analysed. Due to the spectral resolution of IBBCEAS system, the strong and narrow absorption lines of H2O are unresolved and exhibit non-Beer–Lambert Law behaviour. Therefore, a correction method is used to obtain the effective absorption cross section for fitting the H2O structure. An inappropriate H2O absorption cross section can cause an overestimation of NO3 concentration of about 28% in a humid atmosphere (H2O = 1.8%). This spectroscopic correction provides an approach to obtain accurate NO3 concentrations for open-path optical configurations, for example in chamber experiments or field campaigns. The measurement precision values are improved by a factor of 3 to 4 after applying Kalam filtering, achieving sub-ppbv (0.8 ppbv) and sub-pptv (0.9 pptv) performance in 2 s for NO2 and NO3, respectively. ? 2023 by the authors.
WOS研究方向Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000930225500001
源URL[http://ir.gig.ac.cn/handle/344008/80273]  
专题有机地球化学国家重点实验室
作者单位1.School of Chemistry and Environmental Research Institute, University College Cork, Cork; T12 YN60, Ireland
2.Department of Physics, National Institute of Technology Calicut, Calicut; 673601, India
3.Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere-Ocean System, Ministry of Education, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai; 519082, China
4.School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou; 510275, China
5.Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Chinese Academy of Sciences, Guangzhou; 510640, China
6.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China
7.State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai; 200233, China
8.Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai; 200093, China
推荐引用方式
GB/T 7714		 Wang, Meng,Lou, Shengrong,Hu, Weiwei,et al. Intercomparison of NO3 under Humid Conditions with Open-Path and Extractive IBBCEAS in an Atmospheric Reaction Chamber[J]. REMOTE SENSING,2023,15(3):739.
APA Wang, Meng.,Lou, Shengrong.,Hu, Weiwei.,Wang, Haichao.,Wang, Xinming.,...&Chen, Jun.(2023).Intercomparison of NO3 under Humid Conditions with Open-Path and Extractive IBBCEAS in an Atmospheric Reaction Chamber.REMOTE SENSING,15(3),739.
MLA Wang, Meng,et al."Intercomparison of NO3 under Humid Conditions with Open-Path and Extractive IBBCEAS in an Atmospheric Reaction Chamber".REMOTE SENSING 15.3(2023):739.

入库方式： OAI收割

来源：广州地球化学研究所

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