GSTDTAP
DOI10.5194/acp-19-14559-2019
Detection and characterization of birch pollen in the atmosphere using a multiwavelength Raman polarization lidar and Hirst-type pollen sampler in Finland
Bohlmann, Stephanie1; Shang, Xiaoxia1; Giannakaki, Elina1,2; Filioglou, Maria1; Saarto, Annika3; Romakkaniemi, Sami1; Komppula, Mika1
2019-12-02
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2019
卷号19期号:23页码:14559-14569
文章类型Article
语种英语
国家Finland; Greece
英文摘要

We present the results of birch pollen characterization using lidar and in situ measurements based on a 11 d pollination period from 5 to 15 May 2016 at the European Aerosol Research Lidar Network (EARLINET) station in Vehmasmaki (Kuopio; 62 degrees 44' N, 27 degrees 33' E), Finland. The ground-based multiwavelength Raman polarization lidar Polly(XT) performed continuous measurements at this rural forest site and has been combined with a Hirst-type volumetric air sampler, which measured the pollen type and concentration at roof level (4 m). The period was separated into two parts due to different atmospheric conditions and detected pollen types. During the first period, high concentrations of birch pollen were measured with a maximum 2 h average pollen concentration of 3700 grains m(-3). Other pollen types represented less than 3% of the total pollen count. In observed pollen layers, the mean particle depolarization ratio at 532 nm was 10 +/- 6% during the intense birch pollination period. Mean lidar ratios were found to be 45 +/- 7 and 55 +/- 16 sr at 355 and 532 nm, respectively. During the second period, birch pollen was still dominant, but a significant contribution of spruce pollen was observed as well. Spruce pollen grains are highly nonspherical, leading to a larger mean depolarization ratio of 26 +/- 7% for the birch-spruce pollen mixture. Furthermore, higher lidar ratios were observed during this period with mean values of 60 +/- 3 and 62 +/- 10 sr at 355 and 532 nm, respectively. The presented study shows the potential of the particle depolarization ratio to track pollen grains in the atmosphere.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000500953100002
WOS关键词ICE NUCLEATING ABILITY ; LONG-RANGE TRANSPORT ; SAHARAN DUST ; BACKSCATTER ; EXTINCTION ; POLLY(XT) ; IMMERSION ; BETULA
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/224098
专题环境与发展全球科技态势
作者单位1.Atmospher Res Ctr Eastern Finland, Finnish Meteorol Inst, Kuopio 70211, Finland;
2.Univ Athens, Dept Environm Phys & Meteorol, Athens 15784, Greece;
3.Univ Turku, Biodivers Unit, Turku, Finland
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GB/T 7714
Bohlmann, Stephanie,Shang, Xiaoxia,Giannakaki, Elina,et al. Detection and characterization of birch pollen in the atmosphere using a multiwavelength Raman polarization lidar and Hirst-type pollen sampler in Finland[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(23):14559-14569.
APA Bohlmann, Stephanie.,Shang, Xiaoxia.,Giannakaki, Elina.,Filioglou, Maria.,Saarto, Annika.,...&Komppula, Mika.(2019).Detection and characterization of birch pollen in the atmosphere using a multiwavelength Raman polarization lidar and Hirst-type pollen sampler in Finland.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(23),14559-14569.
MLA Bohlmann, Stephanie,et al."Detection and characterization of birch pollen in the atmosphere using a multiwavelength Raman polarization lidar and Hirst-type pollen sampler in Finland".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.23(2019):14559-14569.
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