DOI: 10.1002/2014GL061378
论文题名: Twenty-first century reversal of the surface ozone seasonal cycle over the northeastern United States
作者: Clifton O.E. ; Fiore A.M. ; Correa G. ; Horowitz L.W. ; Naik V.
刊名: Geophysical Research Letters
ISSN: 0094-9695
EISSN: 1944-9426
出版年: 2014
卷: 41, 期: 20 起始页码: 7343
结束页码: 7350
语种: 英语
英文关键词: air pollution
; climate change
; methane
; ozone smog
Scopus关键词: Climate change
; Methane
; Ozone
; Climate simulation
; Climate warming
; Keypoints
; NOx emissions
; Seasonal cycle
; Surface ozone
; Air pollution
; climate change
; emission control
; global warming
; methane
; nitrogen oxides
; numerical model
; ozone
; seasonal variation
; smog
; United States
英文摘要: Changing emissions can alter the surface O3 seasonal cycle, as detected from northeastern U.S. (NE) observations during recent decades. Under continued regional precursor emission controls (-72% NE NOx by 2100), the NE surface O3 seasonal cycle reverses (to a winter maximum) in 21st century transient chemistry-climate simulations. Over polluted regions, regional NOx largely controls the shape of surface O3 seasonal cycles. In the absence of regional NOx controls, climate warming contributes to a higher surface O3 summertime peak over the NE. A doubling of the global CH4 abundance by 2100 partially offsets summertime surface O3 decreases attained via NOx reductions and contributes to raising surface O3 during December-March when the O3 lifetime is longer. The similarity between surface O3 seasonal cycles over the NE and the Intermountain West by 2100 indicates a NE transition to a region representative of baseline surface O3 conditions. Key Points Changing regional NOx emissions alter peak surface ozone seasonClimate change increases peak summertime surface ozone over NE U.S.Rising global methane enhances surface ozone most strongly during winter ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911394204&doi=10.1002%2f2014GL061378&partnerID=40&md5=c69056cf7772fa60ac04431f0c6f6257
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6959
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth and Environmental Sciences, Columbia University, New York, NY, United States
Recommended Citation:
Clifton O.E.,Fiore A.M.,Correa G.,et al. Twenty-first century reversal of the surface ozone seasonal cycle over the northeastern United States[J]. Geophysical Research Letters,2014-01-01,41(20).