DOI: 10.1016/j.atmosenv.2014.03.044
Scopus记录号: 2-s2.0-84897954035
论文题名: Evaluation of aviation NOx-induced radiative forcings for 2005 and2050
作者: Khodayari A ; , Olsen S ; C ; , Wuebbles D ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 91 起始页码: 95
结束页码: 103
语种: 英语
英文关键词: Aviation
; Simple climate models
Scopus关键词: Atmospheric chemistry
; Atmospheric radiation
; Aviation
; Climate models
; Methane
; Three dimensional
; 3-d modeling
; Community atmosphere model
; Emission scenario
; Lower stratosphere
; Per unit
; Radiative forcings
; Threedimensional (3-d)
; Time dependent
; Reduction
; nitric oxide
; atmospheric pollution
; climate modeling
; concentration (composition)
; data set
; hydroxyl radical
; methane
; nitrogen oxides
; ozone
; radiative forcing
; stratosphere
; three-dimensional modeling
; traffic emission
; troposphere
; article
; aviation
; controlled study
; global climate
; priority journal
; radiative forcing
; steady state
; stratosphere
; troposphere
; water vapor
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: Aviation NOx emissions lead to the production of ozone (O3) and an OH increase in the troposphere and lower stratosphere. This OH increase results in a reduction of methane (CH4) which causes a longer-term reduction in O3 concentrations and lower stratospheric water vapor (SWV). Here we report new evaluations of a more comprehensive suite of aviation NOx-induced steady-state radiative forcing (RF) for 2006 aviation NOx emissions and for two different projections of 2050 NOx emissions and compare them with previously published analyses of aviation NOx-induced steady-state RFs. To do so, we evaluate the aviation NOx-induced steady-state RFs using the three-dimensional (3-D) global climate-chemistry Community Atmosphere Model (CAM), CAM4Chem. Moreover, we determine time dependent (transient) RFs for 2005 and the two 2050 emission scenarios by utilizing a parameterization based on specific RFs (steady-state RFs per unit of NOx emission) calculated in the 3-D model simulations, time-dependent NOx emissions data, and considering the lifetime of the perturbed species. For aviation NOx-induced effects we find that the net transient RFs differ from the linearly scaled steady-state RFs (specific steady-state RFs multiplied by NOx emissions) by+10%-36% for the different emission scenarios used in this study. These results indicate the importance of not using the transient and steady-state RF interchangeably, especially when comparing the aviation contribution in RF changes to contributions from othertransportation sectors. Also, these results indicate that careful consideration is necessary when choosing whether to use the steady-state or transient RF when evaluating aviation NOx-induced RFs. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80863
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States; Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States
Recommended Citation:
Khodayari A,, Olsen S,C,et al. Evaluation of aviation NOx-induced radiative forcings for 2005 and2050[J]. Atmospheric Environment,2014-01-01,91