气候变化领域集成服务门户(CCPortal): Measurement report: Effect of wind shear on PM10 concentration vertical structure in the urban boundary layer in a complex terrain

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DOI	10.5194/acp-21-12113-2021
	Measurement report: Effect of wind shear on PM10 concentration vertical structure in the urban boundary layer in a complex terrain
	Sekula P.; Bokwa A.; Bartyzel J.; Bochenek B.; Chmura L.; Galkowski M.; Zimnoch M.
发表日期	2021
ISSN	1680-7316
起始页码	12113
结束页码	12139
卷号	21 期号:15
英文摘要	The paper shows wind shear impact on PM10 vertical profiles in Krakow, southern Poland. The data used consist of background data for two cold seasons (September 2018 to April 2019 and September 2019 to April 2020) and data for several case studies from November 2019 to March 2020. The data are composed of PM10 measurements, model data, and wind speed and direction data. The background model data come from operational forecast results of the AROME model. PM10 concentration in the vertical profile was measured with a sightseeing balloon. Significant spatial variability of the wind field was found. The case studies represent the conditions with much lower wind speed and a much higher PM10 level than the seasonal average. The inversions were much more frequent than on average too. Wind shear turned out to be the important factor in terms of PM10 vertical profile modification. It is generated due to the relief impact, i.e. the presence of a large valley, blocked on one side with the hills. The analysis of PM10 profiles from all flights allows us to distinguish three vertical zones of potential air pollution hazards within the valley (about 100g¯m deep) and the city of Krakow: (1) up to about 60g¯mg¯a.g.l. - the zone where during periods of low wind speed, air pollution is potentially the highest and the duration of such high levels is the longest, i.e. the zone with the worst aerosanitary conditions; (2) about 60-100g¯mg¯a.g.l. - transitional zone where the large decrease in PM10 levels with height is observed; (3) above 100-120g¯mg¯a.g.l. - the zone where air quality is significantly better than in zone 1, either due to the increase in the wind speed or due to the wind direction change and advection of different, clean air masses. © 2021 The Author(s).
语种	英语
scopus关键词	air quality; atmospheric pollution; boundary layer; complex terrain; concentration (composition); particulate matter; spatial variation; urban area; wind direction; wind shear; wind velocity; Cracow; Malopolskie; Poland [Central Europe]
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/246658
作者单位	Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, 19 Reymonta St, Krakow, 30-059, Poland; Institute of Meteorology and Water Management, National Research Institute, Branch of Krakow, 14 Piotra Borowego St, Krakow, 30-215, Poland; Institute of Geography and Spatial Management, Jagiellonian University, 7 Gronostajowa St, Krakow, 30-387, Poland; Max Planck Institute for Biogeochemistry, Department of Biogeochemical Signals, Hans-Knoll-Str. 10, Jena, 07745, Germany
推荐引用方式 GB/T 7714	Sekula P.,Bokwa A.,Bartyzel J.,et al. Measurement report: Effect of wind shear on PM10 concentration vertical structure in the urban boundary layer in a complex terrain[J],2021,21(15).
APA	Sekula P..,Bokwa A..,Bartyzel J..,Bochenek B..,Chmura L..,...&Zimnoch M..(2021).Measurement report: Effect of wind shear on PM10 concentration vertical structure in the urban boundary layer in a complex terrain.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(15).
MLA	Sekula P.,et al."Measurement report: Effect of wind shear on PM10 concentration vertical structure in the urban boundary layer in a complex terrain".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.15(2021).