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Tropospheric ozone radiative forcing uncertainty due to pre-industrial fire and biogenic emissions
- Source :
- Atmospheric Chemistry and Physics, Vol 20, Pp 10937-10951 (2020), Atmospheric chemistry and physics, 20 (18), 10937–10951
- Publication Year :
- 2020
-
Abstract
- Tropospheric ozone concentrations are sensitive to natural emissions of precursor compounds. In contrast to existing assumptions, recent evidence indicates that terrestrial vegetation emissions in the pre-industrial era were larger than in the present day. We use a chemical transport model and a radiative transfer model to show that revised inventories of pre-industrial fire and biogenic emissions lead to an increase in simulated pre-industrial ozone concentrations, decreasing the estimated pre-industrial to present-day tropospheric ozone radiative forcing by up to 34 % (0.38 to 0.25 W m−2). We find that this change is sensitive to employing biomass burning and biogenic emissions inventories based on matching vegetation patterns, as the co-location of emission sources enhances the effect on ozone formation. Our forcing estimates are at the lower end of existing uncertainty range estimates (0.2–0.6 W m−2), without accounting for other sources of uncertainty. Thus, future work should focus on reassessing the uncertainty range of tropospheric ozone radiative forcing.
- Subjects :
- Atmospheric Science
Ozone
010504 meteorology & atmospheric sciences
Chemical transport model
Forcing (mathematics)
Atmospheric sciences
01 natural sciences
Industrial fire
lcsh:Chemistry
03 medical and health sciences
chemistry.chemical_compound
Atmospheric radiative transfer codes
ddc:550
Tropospheric ozone
030304 developmental biology
0105 earth and related environmental sciences
ddc:910
0303 health sciences
Vegetation
Radiative forcing
lcsh:QC1-999
Earth sciences
lcsh:QD1-999
chemistry
Environmental science
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 16807324
- Database :
- OpenAIRE
- Journal :
- Atmospheric Chemistry and Physics, Vol 20, Pp 10937-10951 (2020), Atmospheric chemistry and physics, 20 (18), 10937–10951
- Accession number :
- edsair.doi.dedup.....51cba03956067794571c04470a1624a1