DOI: 10.1016/j.atmosenv.2017.06.017
Scopus记录号: 2-s2.0-85020781457
论文题名: Regional and hemispheric influences on temporal variability in baseline carbon monoxide and ozone over the Northeast US
作者: Zhou Y ; , Mao H ; , Demerjian K ; , Hogrefe C ; , Liu J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 164 起始页码: 309
结束页码: 324
语种: 英语
英文关键词: Baseline CO
; Baseline O3
; Emission
; Meteorology
; Northeast U.S.
; Temporal variability
Scopus关键词: Atmospheric pressure
; Emission control
; Fires
; Meteorology
; Neutron emission
; Ozone
; Arctic Oscillation
; Baseline O<sub>3</sub>
; Biomass burning emissions
; Interannual variability
; Meteorological condition
; North Atlantic oscillations
; Northeast U.S
; Temporal variability
; Carbon monoxide
; carbon monoxide
; nitrogen oxide
; ozone
; annual variation
; anthropogenic effect
; baseline conditions
; carbon monoxide
; emission control
; meteorology
; mixing ratio
; North Atlantic Oscillation
; ozone
; temporal variation
; trend analysis
; urban pollution
; Article
; biomass
; circannual rhythm
; combustion
; meteorology
; New Hampshire
; North Atlantic oscillation
; photochemistry
; priority journal
; rural area
; Russian Federation
; seasonal variation
; United States
; Canada
; New Hampshire
; Russian Federation
; United States
; United States
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: Interannual variability in baseline carbon monoxide (CO) and ozone (O3), defined as mixing ratios under minimal influence of recent and local emissions, was studied for seven rural sites in the Northeast US over 2001–2010. Annual baseline CO exhibited statistically significant decreasing trends (−4.3 to −2.3 ppbv yr−1), while baseline O3 did not display trends at any site. In examining the data by season, wintertime and springtime baseline CO at the two highest sites (1.5 km and 2 km asl) did not experience significant trends. Decadal increasing trends (∼2.55 ppbv yr−1) were found in springtime and wintertime baseline O3 in southern New Hampshire, which was associated with anthropogenic NOx emission reductions from the urban corridor. Biomass burning emissions impacted summertime baseline CO with ∼38% variability from wildfire emissions in Russia and ∼22% from Canada at five sites and impacted baseline O3 at the two high elevation sites only with ∼27% variability from wildfires in both Russia and Canada. The Arctic Oscillation was negatively correlated with summertime baseline O3, while the North Atlantic Oscillation was positively correlated with springtime baseline O3. This study suggested that anthropogenic and biomass burning emissions, and meteorological conditions were important factors working together to determine baseline O3 and CO in the Northeast U.S. during the 2000s. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82558
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemistry, State University of New York College of Environmental Science and Forestry, Syracuse, NY, United States; Atmospheric Science Research Center, State University of New York at Albany, Albany, NY, United States; Emissions and Model Evaluation Branch, Atmospheric Modeling and Analysis Division, NERL, ORD, U.S. EPA, Research Triangle ParkNC, United States; Department of Geography and Planning, University of Toronto, Toronto, ON, Canada; School of Atmospheric Sciences, Nanjing University, Nanjing, China
Recommended Citation:
Zhou Y,, Mao H,, Demerjian K,et al. Regional and hemispheric influences on temporal variability in baseline carbon monoxide and ozone over the Northeast US[J]. Atmospheric Environment,2017-01-01,164