气候变化领域集成服务门户(CCPortal): Mass spectrometric measurements of ambient ions and estimation of gaseous sulfuric acid in the free troposphere and lowermost stratosphere during the CAFE-EU/BLUESKY campaign

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DOI	10.5194/acp-22-11781-2022
	Mass spectrometric measurements of ambient ions and estimation of gaseous sulfuric acid in the free troposphere and lowermost stratosphere during the CAFE-EU/BLUESKY campaign
	Zauner-Wieczorek, Marcel; Heinritzi, Martin; Granzin, Manuel; Keber, Timo; Kurten, Andreas; Kaiser, Katharina; Schneider, Johannes; Curtius, Joachim
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	11781
结束页码	11794
卷号	22 期号:17 页码:14
英文摘要	Ambient ions play an important role in atmospheric processes such as ion-induced new particle formation. While there are several studies of ambient ions for different layers of the atmosphere, data coverage for the free troposphere and especially the upper troposphere and lower stratosphere (UTLS) region is scarce. Here, we present the first airborne measurements of ambient ions using a high-resolution atmospheric pressure interface time-of-flight mass spectrometer (HR-APi-TOF-MS) in the free troposphere and lower stratosphere above Europe on board the HALO aircraft during the CAFE-EU/BLUESKY campaign in May and June 2020. In negative measurement mode, we observed nitrate and hydrogen sulfate and their related ion clusters in an altitude range of 4.7 to 13.4 km. The horizontal profiles for those ions reveal an increasing count rate for NO3- and (HNO3)NO3- towards higher altitudes but no significant trend for HSO4-. From the count rates of the nitrate (NO3-) and hydrogen sulfate (HSO4-) core ions, we inferred the number concentration of gaseous sulfuric acid. The lowest average value was found to be 1.9 x 10(5) cm(-3) at the maximum altitude bin, i.e. 13.4 km. The highest average value of 7.8 x 10(5) cm(-3) was observed in the 8.7-9.2 km altitude bin. During the transit through a mixed-phase cloud, we observed an event of enhanced ion count rates and aerosol particle concentrations that can largely be assigned to nitrate ions and particles, respectively; this may have been caused by the shattering of liquid cloud droplets on the surface of the aircraft or the inlet. Furthermore, we report the proof of principle for the measurement of ambient cations and the identification of protonated pyridine.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000853012100001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273921
作者单位	Goethe University Frankfurt; Max Planck Society
推荐引用方式 GB/T 7714	Zauner-Wieczorek, Marcel,Heinritzi, Martin,Granzin, Manuel,et al. Mass spectrometric measurements of ambient ions and estimation of gaseous sulfuric acid in the free troposphere and lowermost stratosphere during the CAFE-EU/BLUESKY campaign[J],2022,22(17):14.
APA	Zauner-Wieczorek, Marcel.,Heinritzi, Martin.,Granzin, Manuel.,Keber, Timo.,Kurten, Andreas.,...&Curtius, Joachim.(2022).Mass spectrometric measurements of ambient ions and estimation of gaseous sulfuric acid in the free troposphere and lowermost stratosphere during the CAFE-EU/BLUESKY campaign.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(17),14.
MLA	Zauner-Wieczorek, Marcel,et al."Mass spectrometric measurements of ambient ions and estimation of gaseous sulfuric acid in the free troposphere and lowermost stratosphere during the CAFE-EU/BLUESKY campaign".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.17(2022):14.