DOI: 10.1016/j.atmosenv.2017.07.045
Scopus记录号: 2-s2.0-85026756561
论文题名: Surface air quality implications of volcanic injection heights
作者: Thomas M ; A ; , Brännström N ; , Persson C ; , Grahn H ; , von Schoenberg P ; , Robertson L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 166 起始页码: 510
结束页码: 518
语种: 英语
英文关键词: Pollution transport
; Surface air quality
; Volcanic emissions
Scopus关键词: Air quality
; Fighter aircraft
; Pollution
; Sulfur compounds
; Troposphere
; Volcanoes
; Air quality impacts
; High pressure system
; Long range transport
; Pollutant concentration
; Pollution transport
; Spatiotemporal distributions
; Volcanic emission
; Volcanic eruptions
; River pollution
; sulfate
; sulfur
; air quality
; concentration (composition)
; haze
; pollutant transport
; simulation
; spatiotemporal analysis
; volcanic eruption
; weather
; air quality
; altitude
; Article
; atmosphere
; atmospheric transport
; concentration (parameters)
; dispersion
; dry deposition
; Europe
; kinematics
; meteorology
; nuclear power plant
; oxidation
; pollution transport
; priority journal
; Scandinavia
; spatiotemporal analysis
; stratosphere
; surface area
; troposphere
; volcano
; wet deposition
; Iceland
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Air quality implications of volcanic eruptions have gained increased attention recently in association with the 2010 Icelandic eruption that resulted in the shut-down of European air space. The emission amount, injection height and prevailing weather conditions determine the extent of the impact through the spatio-temporal distribution of pollutants. It is often argued that in the case of a major eruption in Iceland, like Laki in 1783–1784, that pollutants injected high into the atmosphere lead to substantially increased concentrations of sulfur compounds over continental Europe via long-range transport in the jet stream and eventual large-scale subsidence in a high-pressure system. Using state-of-the-art simulations, we show that the air quality impact of Icelandic volcanoes is highly sensitive to the injection height. In particular, it is the infinitesimal injections into the lower half of the troposphere, rather than the substantial injections into the upper troposphere/lower stratosphere that contribute most to increased pollutant concentrations, resulting in atmospheric haze over mainland Europe/Scandinavia. Besides, the persistent high pressure system over continental Europe/Scandinavia traps the pollutants from dispersing, thereby prolonging the haze. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82654
Appears in Collections: 气候变化事实与影响
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作者单位: Research Dept., Swedish Meteorological and Hydrological Institute, Folkborgsvägen 17, Norrköping, Sweden; Dept. of CBRN Defence and Security, The Swedish Defence Research Agency, FOI, Umeå, Sweden; Dept. of Environmental Science and Analytical Chemistry, ACES, Stockholm University, Stockholm, Sweden
Recommended Citation:
Thomas M,A,, Brännström N,et al. Surface air quality implications of volcanic injection heights[J]. Atmospheric Environment,2017-01-01,166