DOI: 10.1016/j.atmosenv.2018.02.024
Scopus记录号: 2-s2.0-85042651237
论文题名: Long-term trends in ozone in baseline and European regionally-polluted air at Mace Head, Ireland over a 30-year period
作者: Derwent R ; G ; , Manning A ; J ; , Simmonds P ; G ; , Spain T ; G ; , O'Doherty S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 179 起始页码: 279
结束页码: 287
语种: 英语
英文关键词: Baseline levels
; Mace Head Ireland
; Seasonal cycles
; Surface ozone
; Trends
Scopus关键词: Atmospheric movements
; Meteorology
; Baseline levels
; Ireland
; Seasonal cycle
; Surface ozone
; Trends
; Ozone
; ozone
; air pollution
; Article
; deceleration
; Ireland
; Northern Hemisphere
; priority journal
; seasonal variation
; spring
; summer
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: Observations of surface ozone, O3, have been made at the Mace Head Atmospheric Research Station on the North Atlantic Ocean coastline of Ireland over a 30-year period from April 1987 through to April 2017. Using meteorological analyses and a sophisticated Lagrangian dispersion model, the hourly observations have been sorted by air mass histories to separate out the observations for northern hemisphere mid-latitude baseline air masses. Monthly average baseline levels showed a pronounced seasonal cycle with spring maxima and summer minima. Baseline levels have shown an increase during the 1980s and 1990s which has been stronger in the winter and spring and weaker in the summer. The rate of this increase has slowed to the extent that baseline levels have been relatively constant through the 2000s and started to decline in 2010s. The unsorted O3 data has shown different long-term trends from the baseline data because of the influence of European regional NOx and VOC emissions which have reduced wintertime O3 levels below the baseline levels and enhanced summertime O3 levels above them. Episodic peak O3 levels have declined steadily during the study period but 50 ppb 1 h exceedances are likely to continue for the foreseeable future. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82952
Appears in Collections: 气候变化事实与影响
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作者单位: rdscientific, Newbury, Berkshire, United Kingdom; Met Office, FitzRoy Road, Exeter, Devon, United Kingdom; School of Chemistry, University of Bristol, Bristol, United Kingdom; School of Physics, National University of Ireland, Galway, Galway, Ireland
Recommended Citation:
Derwent R,G,, Manning A,et al. Long-term trends in ozone in baseline and European regionally-polluted air at Mace Head, Ireland over a 30-year period[J]. Atmospheric Environment,2018-01-01,179