气候变化领域集成服务门户(CCPortal): High post-season Alnus pollen loads successfully identified as long-range transport of an alpine species

CCPortal

DOI	10.1016/j.atmosenv.2020.117453
	High post-season Alnus pollen loads successfully identified as long-range transport of an alpine species
	Ghasemifard H.; Ghada W.; Estrella N.; Lüpke M.; Oteros J.; Traidl-Hoffmann C.; Damialis A.; Buters J.; Menzel A.
发表日期	2020
ISSN	1352-2310
卷号	231
英文摘要	Alnus pollen is one of the Northern Hemisphere's major aeroallergens. In Central Europe, the genus is represented by three species (Alnus glutinosa, Alnus incana, and Alnus viridis). The most common one, A. glutinosa (L.) Gaertn., is widespread in lowland riparian forests, swamps, and forest edges. However, to date is still unknown if all of them - in terms of pollen exposure - are clinically relevant for sensitized individuals. To investigate the associated pollen exposure, particularly also because of long-range transport of airborne pollen, we used backward air mass trajectories and tested this method for the year 2015, based on daily Alnus pollen concentrations at 26 sites in Bavaria, Germany. A. glutinosa's main pollen season extends from February to March, but a six-day, post-season episode was additionally identified in June. For this episode and all sites, 72-h backward trajectories were calculated at 3-h intervals using high spatial and temporal resolution ERA5 reanalysis data and the HYSPLIT (hybrid single-particle Lagrangian integrated trajectory) model. This backward trajectory method identified air masses from the alpine region in Switzerland and Austria, where relevant areas of A. viridis (Chaix) DC as potential pollen sources exist. These may explain the post-season episode in June, as additionally confirmed by its unique spatial distribution, by a considerably later flowering period, and by repeated long-range transport events as observed in a 23-year pollen time series. © 2020
英文关键词	Alnus; Backward air mass trajectories; Green alder; HYSPLIT; Off-season; Pollen
语种	英语
scopus关键词	Forestry; Meteorology; Trajectories; Air mass trajectories; Airborne pollens; Backward trajectory; Long range transport; Northern Hemispheres; Riparian forests; Single particle; Spatial and temporal resolutions; Atmospheric movements; air mass; alpine environment; dicotyledon; forest ecosystem; long range transport; Northern Hemisphere; pollen; spatial distribution; spatiotemporal analysis; adult; alder; article; Austria; flower development; Germany; nonhuman; season; Switzerland; time series analysis; Europe; Alnus; Alnus glutinosa; Alnus incana; Alnus viridis
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/129488
作者单位	Professorship of Ecoclimatology, Technical University of Munich, Freising, Germany; ZAUM, Center of Allergy & Environment, Technical University of Munich and Helmholtz Zentrum Munich, Munich, Germany; Department of Botany, Ecology, and Plant Physiology, University of Córdoba, Córdoba, Andalusia, Spain; Chair and Institute of Environmental Medicine, UNIKA-T, Technical University of Munich and Helmholtz Zentrum Munich, Germany, German Research Center for Environmental Health, Augsburg, Germany; Center for Allergy Research and Education (CK-CARE), Davos, Switzerland; Institute for Advanced Study, Technical University of Munich, Garching, Germany
推荐引用方式 GB/T 7714	Ghasemifard H.,Ghada W.,Estrella N.,et al. High post-season Alnus pollen loads successfully identified as long-range transport of an alpine species[J],2020,231.
APA	Ghasemifard H..,Ghada W..,Estrella N..,Lüpke M..,Oteros J..,...&Menzel A..(2020).High post-season Alnus pollen loads successfully identified as long-range transport of an alpine species.Atmospheric Environment,231.
MLA	Ghasemifard H.,et al."High post-season Alnus pollen loads successfully identified as long-range transport of an alpine species".Atmospheric Environment 231(2020).