DOI: 10.1002/jgrd.50608
论文题名: Impact of preindustrial to present-day changes in short-lived pollutant emissions on atmospheric composition and climate forcing
作者: Naik V. ; Horowitz L.W. ; Fiore A.M. ; Ginoux P. ; Mao J. ; Aghedo A.M. ; Levy II H.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 14 起始页码: 8086
结束页码: 8110
语种: 英语
英文关键词: atmospheric composition
; preindustrial
; present day
; radiative forcing perturbation
; short-lived pollutants
Scopus关键词: Atmospheric aerosols
; Atmospheric chemistry
; Atmospheric composition
; Atmospheric radiation
; Carbon monoxide
; Climate models
; Greenhouse gases
; Methanation
; Methane
; Nitrogen oxides
; Ozone
; Sea ice
; Sulfur
; Sulfur dioxide
; Troposphere
; Tungsten
; Volatile organic compounds
; Aerosol-cloud interaction
; Geophysical fluid dynamics laboratories
; Non-methane volatile organic compounds
; Pre-industrial
; present day
; Radiative forcings
; Sea surface temperature (SST)
; short-lived pollutants
; Air pollution
; aerosol
; atmospheric chemistry
; atmospheric forcing
; atmospheric pollution
; carbon monoxide
; chemical composition
; climate modeling
; concentration (composition)
; emission
; greenhouse gas
; methane
; nitrogen oxides
; optical depth
; ozone
; ozone depletion
; sea surface temperature
; sulfur dioxide
英文摘要: We describe and evaluate atmospheric chemistry in the newly developed Geophysical Fluid Dynamics Laboratory chemistry-climate model (GFDL AM3) and apply it to investigate the net impact of preindustrial (PI) to present (PD) changes in short-lived pollutant emissions (ozone precursors, sulfur dioxide, and carbonaceous aerosols) and methane concentration on atmospheric composition and climate forcing. The inclusion of online troposphere-stratosphere interactions, gas-aerosol chemistry, and aerosol-cloud interactions (including direct and indirect aerosol radiative effects) in AM3 enables a more complete representation of interactions among short-lived species, and thus their net climate impact, than was considered in previous climate assessments. The base AM3 simulation, driven with observed sea surface temperature (SST) and sea ice cover (SIC) over the period 1981-2007, generally reproduces the observed mean magnitude, spatial distribution, and seasonal cycle of tropospheric ozone and carbon monoxide. The global mean aerosol optical depth in our base simulation is within 5% of satellite measurements over the 1982-2006 time period. We conduct a pair of simulations in which only the short-lived pollutant emissions and methane concentrations are changed from PI (1860) to PD (2000) levels (i.e., SST, SIC, greenhouse gases, and ozone-depleting substances are held at PD levels). From the PI to PD, we find that changes in short-lived pollutant emissions and methane have caused the tropospheric ozone burden to increase by 39% and the global burdens of sulfate, black carbon, and organic carbon to increase by factors of 3, 2.4, and 1.4, respectively. Tropospheric hydroxyl concentration decreases by 7%, showing that increases in OH sinks (methane, carbon monoxide, nonmethane volatile organic compounds, and sulfur dioxide) dominate over sources (ozone and nitrogen oxides) in the model. Combined changes in tropospheric ozone and aerosols cause a net negative top-of-the-atmosphere radiative forcing perturbation (-1.05 W m-2) indicating that the negative forcing (direct plus indirect) from aerosol changes dominates over the positive forcing due to ozone increases, thus masking nearly half of the PI to PD positive forcing from long-lived greenhouse gases globally, consistent with other current generation chemistry-climate models. Key Points Document and evaluate atmospheric chemistry in GFDL-AM3 Net forcing from PI to PD short-lived pollutant emission changes is -1.05 Wm-2 ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63541
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: UCAR/NOAA Geophysical Fluid Dynamics Laboratory, 201 Forrestal Rd., Princeton, NJ 08540, United States; NOAA Geophysical Fluid Dynamics Laboratory, Princeton NJ, United States; Department of Earth and Environmental Sciences, Lamont-Doherty Earth Observatory, Columbia University, Palisades NY, United States; Atmospheric and Oceanic Sciences, Princeton University, Princeton NJ, United States; Civil and Environmental Engineering, Rice University, Houston TX, United States
Recommended Citation:
Naik V.,Horowitz L.W.,Fiore A.M.,et al. Impact of preindustrial to present-day changes in short-lived pollutant emissions on atmospheric composition and climate forcing[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(14)