气候变化领域集成服务门户(CCPortal): Analysis of sulfate aerosols over Austria: A case study

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DOI	10.5194/acp-19-6235-2019
	Analysis of sulfate aerosols over Austria: A case study
	Talianu C.; Seibert P.
发表日期	2019
ISSN	16807316
起始页码	6235
结束页码	6250
卷号	19 期号:9
英文摘要	An increase in the sulfate aerosols observed in the period 1-6 April 2014 over Austria is analyzed using in situ measurements at an Austrian air quality background station, lidar measurements at the closest EARLINET stations around Austria, CAMS near-real-time data, and particle dispersion modeling using FLEXPART, a Lagrangian transport model. In situ measurements of SO2, PM2.5, PM10, and O3 were performed at the air quality background station Pillersdorf, Austria (EMEP station AT30, 48ĝ43′ N, 15ĝ55′ E). A CAMS aerosol mixing ratio analysis for Pillersdorf and the lidar stations Leipzig, Munich, Garmisch, and Bucharest indicates the presence of an event of aerosol transport, with sulfate and dust as principal components. For the sulfate layers identified at Pillersdorf from the CAMS analysis, backward- and forward-trajectory analyses were performed, associating lidar stations with the trajectories. The lidar measurements for the period corresponding to trajectory overpass of associated stations were analyzed, obtaining the aerosol layers, the optical properties, and the aerosol types. The potential sources of transported aerosols were determined for Pillersdorf and the lidar stations using the source-receptor sensitivity computed with FLEXPART, combined with the MACCity source inventory. A comparative analysis for Pillersdorf and the trajectory-associated lidar stations showed consistent aerosol layers, optical properties and types, and potential sources. A complex pattern of contributions to sulfate over Austria was found in this paper. For the lower layers (below 2000 m) of sulfate, it was found that central Europe was the main source of sulfate. Medium to smaller contributions come from sources in eastern Europe, northwest Africa, and the eastern US. For the middle-altitude layers (between 2000 and 5000 m), sources from central Europe (northern Italy, Serbia, Hungary) contribute with similar emissions. Northwest Africa and the eastern US also have important contributions. For the high-altitude layers (above 5000 m), the main contributions come from northwest Africa, but sources from the southern and eastern US also contribute significantly. No contributions from Europe are seen for these layers. The methodology used in this paper can be used as a general tool to correlate measurements at in situ stations and EARLINET lidar stations around these in situ stations. © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; air quality; atmospheric transport; in situ measurement; lidar; mixing ratio; real time; sulfate; Austria
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/144421
作者单位	Institute of Meteorology, University of Natural Resources and Life Sciences, Vienna, Austria; National Institute of RandD for Optoelectronics, Mafgurele, Romania
推荐引用方式 GB/T 7714	Talianu C.,Seibert P.. Analysis of sulfate aerosols over Austria: A case study[J],2019,19(9).
APA	Talianu C.,&Seibert P..(2019).Analysis of sulfate aerosols over Austria: A case study.Atmospheric Chemistry and Physics,19(9).
MLA	Talianu C.,et al."Analysis of sulfate aerosols over Austria: A case study".Atmospheric Chemistry and Physics 19.9(2019).