气候变化领域集成服务门户(CCPortal): Effect of vertical parameterization of a missing daytime source of HONO on concentrations of HONO, O3 and secondary organic aerosols in eastern China

CCPortal

DOI	10.1016/j.atmosenv.2019.117208
	Effect of vertical parameterization of a missing daytime source of HONO on concentrations of HONO, O3 and secondary organic aerosols in eastern China
	Guo Y.; Zhang J.; An J.; Qu Y.; Liu X.; Sun Y.; Chen Y.
发表日期	2020
ISSN	1352-2310
卷号	226
英文摘要	Unexpectedly high daytime concentrations of nitrous acid (HONO) measured by field observations cannot be explained by theoretical calculations, implying that there may be a missing source of HONO in the daytime (Pmissing). The value of Pmissing near the ground (PGmissing) is different from that measured higher in the atmosphere (PHmissing) according to previous field studies, but the contribution of the vertical Pmissing profile in the atmospheric boundary layer (ABL) to air quality remains unknown. We derived a new formula PGmissing = 0.180 × J(NO2) [ppb s−1] based on field measurements near the ground, where J(NO2) is the photolysis frequency of NO2, and used the value of PHmissing inferred from Zeppelin measurements in the troposphere to parameterize Pmissing in the ABL. This parameterization was incorporated into the Weather Research and Forecasting model with Chemistry (WRF-Chem) to quantify the vertical effects of Pmissing on the concentrations of HONO, O3 and secondary organic aerosols (SOAs) in eastern China. Our results showed that PGmissing and PHmissing together further narrowed the gap between the simulations and observations, leading to a daytime increase in HONO concentrations of about 160 ppt near the ground in summer, autumn and winter compared with PGmissing only, an increase in the daytime concentrations of O3 of 8–37 ppb within the ABL in almost all of the studied domain in summer (1–19 ppb in winter and 4–21 ppb in autumn) and the largest hourly increase in the concentration of SOAs of 22.5 (18.6) μg m−3 in winter (summer). The results indicated that HONO sources near the ground have a limited effect on the HONO concentrations in the upper ABL even in summer in the presence of strong convective activities. The HONO increase in the upper ABL can affect the concentration of HONO near the ground. When PGmissing was inserted into each model layer in the ABL, the concentrations of HONO higher in the atmosphere were substantially overestimated, suggesting that observations of the vertical distribution of HONO in the ABL are required in polluted areas. © 2020 Elsevier Ltd
关键词	Atmospheric boundary layer HONO SOAs WRF-Chem
语种	英语
scopus关键词	Aerosols; Air quality; Atmospheric boundary layer; Atmospheric chemistry; Nitrogen oxides; Photolysis; Weather forecasting; HONO; Photolysis frequencies; Secondary organic aerosols; SOAs; Theoretical calculations; Vertical distributions; Weather research and forecasting models; WRF-Chem; Inorganic acids; nitrous acid; ozone; aerosol; air quality; boundary layer; concentration (composition); nitrous acid; parameterization; vertical distribution; air quality; Article; atmosphere; autumn; boundary layer; China; concentration (parameter); controlled study; measurement; photolysis; priority journal; secondary organic aerosol; simulation; summer; troposphere; winter; China
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249255
作者单位	State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth Sciences, University of the Chinese Academy of Sciences, Beijing, 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
推荐引用方式 GB/T 7714	Guo Y.,Zhang J.,An J.,et al. Effect of vertical parameterization of a missing daytime source of HONO on concentrations of HONO, O3 and secondary organic aerosols in eastern China[J],2020,226.
APA	Guo Y..,Zhang J..,An J..,Qu Y..,Liu X..,...&Chen Y..(2020).Effect of vertical parameterization of a missing daytime source of HONO on concentrations of HONO, O3 and secondary organic aerosols in eastern China.ATMOSPHERIC ENVIRONMENT,226.
MLA	Guo Y.,et al."Effect of vertical parameterization of a missing daytime source of HONO on concentrations of HONO, O3 and secondary organic aerosols in eastern China".ATMOSPHERIC ENVIRONMENT 226(2020).