DOI: 10.1016/j.atmosenv.2020.117453
论文题名: High post-season Alnus pollen loads successfully identified as long-range transport of an alpine species
作者: Ghasemifard H. ; Ghada W. ; Estrella N. ; Lüpke M. ; Oteros J. ; Traidl-Hoffmann C. ; Damialis A. ; Buters J. ; Menzel A.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 231 语种: 英语
英文关键词: 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
学科: Alnus
; Backward air mass trajectories
; Green alder
; HYSPLIT
; Off-season
; Pollen
中文摘要: 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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160325
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Atmospheric Environment,2020-01-01,231