气候变化领域集成服务门户(CCPortal): Influence of vegetation on occurrence and time distributions of regional new aerosol particle formation and growth

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DOI	10.5194/acp-21-2861-2021
	Influence of vegetation on occurrence and time distributions of regional new aerosol particle formation and growth
	Salma I.; Thén W.; Aalto P.; Kerminen V.-M.; Kern A.; Barcza Z.; Petäjä T.; Kulmala M.
发表日期	2021
ISSN	1680-7316
起始页码	2861
结束页码	2880
卷号	21 期号:4
英文摘要	The occurrence frequency of regional atmospheric new aerosol particle formation and consecutive growth events (fNPF) were studied with respect to vegetation activity, aerosol properties, air pollutants and meteorological data in Budapest over the time interval from 2008 to 2018. The data set evaluated contained results of in situ measurements on the land surface that were mostly performed at the Budapest platform for Aerosol Research and Training Laboratory, of satellite-based products recorded by MODIS on Terra and of modelled vegetation emission-related properties from an advanced regional biogeochemical model. The annual mean relative occurrence frequencies were considerable (with an overall mean of 21 %), remained at a constant level (with an overall SD of 5 %) and did not exhibit tendentious change over the years. The shape of the distributions of monthly mean fNPF exhibited large variability from year to year, while the overall average distribution already possessed a characteristic pattern. The structure of the new particle formation (NPF) occurrence distributions was compared to those of environmental variables including concentrations of gas-phase H2SO4, SO2, O3, NO, NO2, CO, PM10 mass and NH3; particle numbers in the size fractions of 6-1000, 6-100 and 100-1000 nm; condensation sink; air temperature (T ); relative humidity (RH); wind speed (WS); atmospheric pressure (P); global solar radiation (GRad); gross primary production (GPP) of vegetation; leaf area index (LAI); and stomatal conductance (SCT). There were no evident systematic similarities between fNPF on the one hand and all of the variables studied on the other hand, except for H2SO4 and perhaps NH3. The spring maximum in the NPF occurrence frequency distribution often overlapped with the time intervals of positive T anomaly in vegetated territories. The link between the potential heat stress exerted on plants in sultry summer intervals and the summer fNPF minimum could not be proven. The relevance of environmental variables was assessed by their ratios on NPF event days and on non-event days. The gas-phase H2SO4 concentration showed the largest monthly ratios, followed by O3. The WS, biogenic precursor gases and SO2 can generally favour NPF events, although their influence seemed to be constrained. An association between the fNPF and vegetation growth dynamics was clearly identified. © 2021 American Society of Mechanical Engineers (ASME). All rights reserved.
语种	英语
scopus关键词	aerosol composition; aerosol formation; concentration (composition); frequency analysis; leaf area index; particle size; research work; stomatal conductance
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/247115
作者单位	Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary; Excellence Center, Faculty of Science, Eötvös Loránd University, Martonvásár, Hungary; Hevesy György Ph. D. School of Chemistry, Eötvös Loránd University, Budapest, Hungary; Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, Finland; Department of Geophysics and Space Science, Eötvös Loránd University, Budapest, Hungary; Department of Meteorology, Eötvös Loránd University, Budapest, Hungary; Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic
推荐引用方式 GB/T 7714	Salma I.,Thén W.,Aalto P.,et al. Influence of vegetation on occurrence and time distributions of regional new aerosol particle formation and growth[J],2021,21(4).
APA	Salma I..,Thén W..,Aalto P..,Kerminen V.-M..,Kern A..,...&Kulmala M..(2021).Influence of vegetation on occurrence and time distributions of regional new aerosol particle formation and growth.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4).
MLA	Salma I.,et al."Influence of vegetation on occurrence and time distributions of regional new aerosol particle formation and growth".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021).