DOI: 10.1002/2013GL057665
论文题名: Effects of plume-scale versus grid-scale treatment of aircraft exhaust photochemistry
作者: Cameron M.A. ; Jacobson M.Z. ; Naiman A.D. ; Lele S.K.
刊名: Geophysical Research Letters
ISSN: 0094-8426
EISSN: 1944-8157
出版年: 2013
卷: 40, 期: 21 起始页码: 5815
结束页码: 5820
语种: 英语
英文关键词: aircraft
; plume
Scopus关键词: Aircraft emissions
; Aircraft exhausts
; Atmospheric model
; Enhanced mixing
; Methane destruction
; Ozone production
; Photochemical activity
; plume
; Aneroid altimeters
; Carbon monoxide
; Chemical reactions
; Methane
; Ozone
; Aircraft
; aircraft emission
; carbon monoxide
; numerical model
; ozone
; photochemistry
; plume
英文摘要: This is a study to examine the impact of modeling photochemistry from aircraft emissions in an expanding plume versus at the grid scale in an atmospheric model. Differences in model treatments for a single flight occurred at all altitudes during takeoff, cruise, and landing. After 10 h, the plume treatment decreased grid-scale ozone production by 33%, methane destruction by 30%, and carbon monoxide destruction by 32% at cruise altitude compared with the grid-scale treatment. The plume treatment changed the odd nitrogen partitioning by ~10%. For multiple overlapping flights at cruise altitude, final ozone, methane, and carbon monoxide perturbations decreased by 77, 68, and 74%, respectively, compared with the grid-scale treatment. Enhanced mixing with ambient air reduced the plume-scale and grid-scale differences. The persistent differences in photochemical activity indicate that individual plume treatment should be incorporated into 3-D modeling studies. Key Points For some species, plume-scale and grid-scale differences did not diminish over time Multiple flights enhanced the plume-scale and grid-scale treatment differences Plume-scale treatment decreased O3 production and CH4, CO destruction ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887303879&doi=10.1002%2f2013GL057665&partnerID=40&md5=794f739bbd04e0ef3e21953e0a177d93
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5690
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, Stanford University, Yang and Yamazaki Environment and Energy Bldg., 473 Via Ortega, Stanford, CA 94305, United States
Recommended Citation:
Cameron M.A.,Jacobson M.Z.,Naiman A.D.,et al. Effects of plume-scale versus grid-scale treatment of aircraft exhaust photochemistry[J]. Geophysical Research Letters,2013-01-01,40(21).