DOI: 10.1002/grl.50210
论文题名: Sensitivity of tropospheric oxidants to biomass burning emissions: Implications for radiative forcing
作者: Mao J. ; Horowitz L.W. ; Naik V. ; Fan S. ; Liu J. ; Fiore A.M.
刊名: Geophysical Research Letters
ISSN: 0094-9237
EISSN: 1944-8968
出版年: 2013
卷: 40, 期: 6 起始页码: 1241
结束页码: 1246
语种: 英语
英文关键词: aerosol uptake
; biomass burning
; global OH
; ozone production
Scopus关键词: Biomass burning emissions
; Biomass-burning
; global OH
; Ozone production
; Radiative forcings
; Short-lived species
; Tropospheric oxidants
; Tropospheric ozone
; Aerosols
; Atmospheric radiation
; Gas emissions
; Oxidants
; Ozone
; Troposphere
; Biomass
; aerosol
; atmospheric pollution
; biomass burning
; emission
; latitude
; nonlinearity
; ozone
; pollutant source
; radiative forcing
; sensitivity analysis
; stratosphere
; trace gas
; tropical region
; troposphere
英文摘要: Biomass burning is one of the largest sources of trace gases and aerosols to the atmosphere and has profound influence on tropospheric oxidants and radiative forcing. Using a fully coupled chemistry-climate model (GFDL AM3), we find that co-emission of trace gases and aerosol from present-day biomass burning increases the global tropospheric ozone burden by 5.1% and decreases global mean OH by 6.3%. Gas and aerosol emissions combine to increase CH 4 lifetime nonlinearly. Heterogeneous processes are shown to contribute partly to the observed lower ΔO3/ΔCO ratios in northern high latitudes versus tropical regions. The radiative forcing from biomass burning is shown to vary nonlinearly with biomass burning strength. At present-day emission levels, biomass burning produces a net radiative forcing of -0.19 W/m2 (-0.29 from short-lived species, mostly aerosol direct and indirect effects, +0.10 from CH4- and CH4-induced changes in O3 and stratospheric H2O) but increases emissions to over 5 times present levels would result in a positive net forcing. ©2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876893225&doi=10.1002%2fgrl.50210&partnerID=40&md5=6bf674f84cf5f2d2d61da574f216e960
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6501
Appears in Collections: 气候减缓与适应
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作者单位: Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ 08542, United States
Recommended Citation:
Mao J.,Horowitz L.W.,Naik V.,et al. Sensitivity of tropospheric oxidants to biomass burning emissions: Implications for radiative forcing[J]. Geophysical Research Letters,2013-01-01,40(6).