气候变化领域集成服务门户(CCPortal): Synoptic classification of meteorological patterns and their impact on air pollution episodes and new particle formation processes in a south European air basin

CCPortal

DOI	10.1016/j.atmosenv.2020.118016
	Synoptic classification of meteorological patterns and their impact on air pollution episodes and new particle formation processes in a south European air basin
	Salvador P.; Barreiro M.; Gómez-Moreno F.J.; Alonso-Blanco E.; Artíñano B.
发表日期	2021
ISSN	1352-2310
卷号	245
英文摘要	A circulation classification technique based on daily sea level pressure fields was applied to classify homogeneous synoptic types in the period 2001–2019 for the Iberian Peninsula (IP). The main synoptic meteorological patterns (SMP) were thus discriminated and then validated by the analysis of meteorological variables and atmospheric stability parameters registered in the Madrid air basin in the year 2015. Then, their utility to characterize atmospheric processes like air pollution episodes or new particle formation in the study area was evaluated. Specific SMP clearly influenced wind circulations and turbulent processes at different spatial scales. At regional scale they contributed to discriminate among pollution episodes giving rise to exceedances of air quality standards for particulate matter, nitrogen dioxide and ozone at monitoring stations. For instance, two of the resulting SMP, characterized by the presence of intense high pressure systems close to the IP and strong atmospheric stability in winter and autumn, produced slightly different urban high-pollution episodes in this region. The highest mean levels of nitrogen dioxide, PM10 and PM2.5 (particles lower than 10 and 2.5 μm, respectively) and of ultrafine particles number concentration registered at different urban traffic, urban background and suburban stations, happened during these specific SMP. Likewise, most new particle formation events took place during two other SMP, which mainly occurred in spring and summer. One of them was characterized by high values of solar irradiance and surface temperature, which favour nucleation processes. The highest mean levels of ozone were also registered at the urban and rural stations during this SMP. The other one represented an unusual meteorological scenario in the IP compared to the others obtained in the study, with high pressures displaced northwest producing relatively high values of surface wind speed. This fact reduced the condensation sink and favoured new particle formation in the midday period. In short, this methodology that considers a large amount of interconnected variables can be very useful for characterizing atmospheric situations that have a strong influence on atmospheric pollution processes in other regions. © 2020 Elsevier Ltd
关键词	Air pollution episodes Circulation classification techniques New particle formation Particle size distributions Synoptic meteorological patterns
语种	英语
scopus关键词	Air quality standards; Nitrogen oxides; Ozone; Sea level; Wind; Air pollution episodes; Atmospheric situations; Classification technique; Daily sea-level pressures; Meteorological patterns; Meteorological variables; New particle formation; Synoptic classification; Air quality; nitrogen dioxide; ozone; air quality; atmospheric circulation; atmospheric pollution; condensation; episodic event; high pressure system; nucleation; solar radiation; surface temperature; wind velocity; air monitoring; air pollution; air quality standard; Article; atmosphere; autumn; concentration (parameter); controlled study; meteorology; molecular stability; particle size; particulate matter; particulate matter 10; particulate matter 2.5; priority journal; rural area; Southern European; spring; summer; temperature; traffic; ultrafine particulate matter; urban area; wind; wind speed; winter; Iberian Peninsula; Madrid [Spain]; Spain
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/248761
作者单位	CIEMAT, Department of Environment, Av. Complutense 40, Madrid, 28040, Spain
推荐引用方式 GB/T 7714	Salvador P.,Barreiro M.,Gómez-Moreno F.J.,et al. Synoptic classification of meteorological patterns and their impact on air pollution episodes and new particle formation processes in a south European air basin[J],2021,245.
APA	Salvador P.,Barreiro M.,Gómez-Moreno F.J.,Alonso-Blanco E.,&Artíñano B..(2021).Synoptic classification of meteorological patterns and their impact on air pollution episodes and new particle formation processes in a south European air basin.ATMOSPHERIC ENVIRONMENT,245.
MLA	Salvador P.,et al."Synoptic classification of meteorological patterns and their impact on air pollution episodes and new particle formation processes in a south European air basin".ATMOSPHERIC ENVIRONMENT 245(2021).