DOI: 10.1016/j.atmosenv.2014.11.012
Scopus记录号: 2-s2.0-84909993421
论文题名: Long-term surface ozone variability at Mt. Cimone WMO/GAW global station (2165 m a.s.l., Italy)
作者: Cristofanelli P ; , Scheel H ; -E ; , Steinbacher M ; , Saliba M ; , Azzopardi F ; , Ellul R ; , Fröhlich M ; , Tositti L ; , Brattich E ; , Maione M ; , Calzolari F ; , Duchi R ; , Landi T ; C ; , Marinoni A ; , Bonasoni P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 101 起始页码: 23
结束页码: 33
语种: 英语
英文关键词: Heatwave
; Italy
; Mediterranean basin
; Ozone
; Trends
Scopus关键词: Atmospheric movements
; Atmospheric pressure
; Anthropogenic contribution
; Atmospheric process
; Heatwave
; Italy
; Mediterranean basin
; Mediterranean region
; North Atlantic oscillations
; Trends
; Ozone
; ozone
; air mass
; anthropogenic source
; atmospheric pollution
; ozone
; seasonal variation
; trend analysis
; weather station
; air pollution
; Article
; atmosphere
; autumn
; boundary layer
; circadian rhythm
; circannual rhythm
; climate change
; controlled study
; Italy
; measurement
; North Atlantic oscillation
; ozone variability
; particulate matter
; photochemistry
; spring
; summer
; surface property
; temperature
; time series analysis
; troposphere
; winter
; Alps
; Apennines
; Austria
; Bern [Switzerland]
; Emilia-Romagna
; Italy
; Jungfraujoch
; Malta
; Modena
; Mount Cimone
; Sonnblick
; Switzerland
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: The Mediterranean basin represents a hot spot area for short-term O3 distribution and anthropogenic contributions to it. This is why we analysed in this work the surface O3 variability observed at Mt. Cimone WMO/GAW global station (CMN, 44°12' N, 10°42' E, 2165 m a.s.l., Italy) from 1991 to 2011. The measurements performed at this mountain observatory represent the longest surface O3 record at a baseline site in the Mediterranean basin.Monthly O3 averages at CMN show a typical seasonal cycle characterised by a winter minimum and a spring - summer maxima. The shape of the mean annual variation of O3 is well comparable with those observed at other four baseline sites in the Alps and in the Mediterranean region: Jungfraujoch - Swiss Alps, Sonnblick - Austrian Alps, Mt. Krvavec- Slovenia and Giordan Lightouse - Island of Gozo, Malta. In general, O3 levels at CMN show higher values during warm months, which is likely to be related both to vertical transport of polluted air-masses at regional and continental scales and to enhanced photochemistry.Here, we also investigate the influence of specific atmospheric processes (i.e. the occurrence of heat-waves, North Atlantic Oscillation, thermal transport of air-masses from the regional PBL and stratospheric intrusions) in affecting O3 variability at CMN.Overall, a significant positive (95% confidence level) linear trend in monthly O3 mole fraction was observed over the period 1991-2011 (0.21±0.10nmol/molyr-1) while no trend (-0.02±0.12nmol/molyr-1) was detected for the 1996-2011, when measurements were carried out by an homogeneous experimental set-up. On a seasonal basis, a positive trend has been observed for 1996-2011 (0.34±0.32nmol/molyr-1) only for spring. Significant decreases of the seasonal O3 growth-rates have been detected at CMN during 1991-2011 from winter to spring and only for summer during 1996-2011. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82129
Appears in Collections: 气候变化事实与影响
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作者单位: National Research Council of Italy, Institute for Atmospheric Sciences and Climate, Bologna, Italy; Karlsruhe Institute of Technology, IMK-IFU, Garmisch-Partenkirchen, Germany; Laboratory for Air Pollution/Environmental Technology, Empa - Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Duebendorf, Switzerland; Atmospheric Research, Physics Department, University of Malta, Msida, Malta; Luftreinhaltung and Klimaschutz, Umweltbundesamt GmbH, Spittelauer Lände 5, Wien, Austria; Laboratory of Natural Radiochemistry, Chemistry Department, Bologna University, Bologna, Italy; Dipartimento di Scienze di Base e Fondamenti (DiSBeF), University of Urbino Carlo Bo, Urbino, Italy
Recommended Citation:
Cristofanelli P,, Scheel H,-E,et al. Long-term surface ozone variability at Mt. Cimone WMO/GAW global station (2165 m a.s.l., Italy)[J]. Atmospheric Environment,2015-01-01,101