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DOI | 10.1029/2017JD028082 |
Flight Deployment of a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer: Observations of Reactive Halogen and Nitrogen Oxide Species | |
Lee, Ben H.1; 39;Ambro, Emma L.2 | |
2018-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:14页码:7670-7686 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Finland |
英文摘要 | We describe the University of Washington airborne high-resolution time-of-flight chemical ionization mass spectrometer (HRToF-CIMS) and evaluate its performance aboard the NCAR-NSF C-130 aircraft during the recent Wintertime INvestigation of Transport, Emissions and Reactivity (WINTER) experiment in February-March of 2015. New features include (i) a computer-controlled dynamic pinhole that maintains constant mass flow-rate into the instrument independent of altitude changes to minimize variations in instrument response times; (ii) continuous addition of low flow-rate humidified ultrahigh purity nitrogen to minimize the difference in water vapor pressure, hence instrument sensitivity, between ambient and background determinations; (iii) deployment of a calibration source continuously generating isotopically labeled dinitrogen pentoxide ((N2O5)-N-15) for in-flight delivery; and (iv) frequent instrument background determinations to account for memory effects resulting from the interaction between sticky compounds and instrument surface following encounters with concentrated air parcels. The resulting improvements to precision and accuracy, along with the simultaneous acquisition of these species and the full set of their isotopologues, allow for more reliable identification, source attribution, and budget accounting, for example, by speciating the individual constituents of nocturnal reactive nitrogen oxides (NOz=ClNO2+2xN(2)O(5)+HNO3+etc.). We report on an expanded set of species quantified using iodide-adduct ionization such as sulfur dioxide (SO2), hydrogen chloride (HCl), and other inorganic reactive halogen species including hypochlorous acid, nitryl chloride, chlorine, nitryl bromide, bromine, and bromine chloride (HOCl, ClNO2, Cl-2, BrNO2, Br-2, and BrCl, respectively). |
英文关键词 | atmospheric chemistry instrument development flight deployment HRToF-CIMS |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441965400036 |
WOS关键词 | INDUCED FLUORESCENCE INSTRUMENT ; URBAN OZONE FORMATION ; POWER-PLANT PLUMES ; SULFUR-DIOXIDE ; NITRYL CHLORIDE ; ORGANIC AEROSOL ; MOLECULAR COMPOSITION ; UPPER TROPOSPHERE ; SOUTHEAST TEXAS ; BOUNDARY-LAYER |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32158 |
专题 | 气候变化 |
作者单位 | 1.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 2.NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO USA; 3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 4.Univ Colorado, Dept Chem & Biochem, Campus Box 215, Boulder, CO 80309 USA; 5.Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA; 6.North Carolina A&T State Univ, Dept Phys, Greensboro, NC USA; 7.North Carolina A&T State Univ, NOAA ISET Ctr, Greensboro, NC USA; 8.Univ Helsinki, Dept Chem, Helsinki, Finland; 9.Univ Washington, Dept Chem, Seattle, WA 98195 USA; 10.Univ Eastern Finland, Dept Appl Phys, Kuopio, Finland; 11.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Lee, Ben H.,39;Ambro, Emma L.. Flight Deployment of a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer: Observations of Reactive Halogen and Nitrogen Oxide Species[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(14):7670-7686. |
APA | Lee, Ben H.,&39;Ambro, Emma L..(2018).Flight Deployment of a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer: Observations of Reactive Halogen and Nitrogen Oxide Species.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(14),7670-7686. |
MLA | Lee, Ben H.,et al."Flight Deployment of a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer: Observations of Reactive Halogen and Nitrogen Oxide Species".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.14(2018):7670-7686. |
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