the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
A regional chemical transport modeling to identify the influences of biomass burning during 2006 BASE-ASIA
Abstract. To evaluate the impact of biomass burning from Southeast Asia to East Asia, this study conducted numerical simulations during NASA's 2006 Biomass-burning Aerosols in South-East Asia: Smoke Impact Assessment (BASE-ASIA). Two typical episode periods (27–28 March and 13–14 April) were examined. Two emission inventories, FLAMBE and GFED, were used in the simulations. The influences during two episodes in the source region (Southeast Asia) contributed to CO, O3 and PM2.5 concentrations as high as 400 ppbv, 20 ppbv and 80 μg/m3, respectively. The perturbations with and without biomass burning of the above three species were in the range of 10 to 60%, 10 to 20% and 30 to 70%, respectively. The impact due to long-range transport could spread over the southeastern parts of East Asia and could reach about 160 to 360 ppbv, 8 to 18 ppbv and 8 to 64 μg/m3 on CO, O3 and PM2.5, respectively; the percentage impact could reach 20 to 50% on CO, 10 to 30% on O3, and as high as 70% on PM2.5. An impact pattern can be found in April, while the impact becomes slightly broader and goes up to Yangtze River Delta.
Two cross-sections at 15° N and 20° N were used to compare the vertical flux of biomass burning. In the source region (Southeast Asia), CO, O3 and PM2.5 concentrations had a strong upward tendency from surface to high altitudes. The eastward transport becomes strong from 2 to 8 km in the free troposphere. The subsidence contributed 60 to 70%, 20 to 50%, and 80% on CO, O3 and PM2.5, respectively to surface in the downwind area. The study reveals the significant impact of Southeastern Asia biomass burning on the air quality in both local and downwind areas, particularly during biomass burning episodes. This modeling study might provide constraints of lower limit. An additional study is underway for an active biomass burning year to obtain an upper limit and climate effects.
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RC C755: 'MS No.: acp-2010-736', Anonymous Referee #1, 11 Mar 2011
- AC C2951: 'Respond to Anonymous Referee #1', Joshua Fu, 08 May 2011
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RC C1304: 'Interactive comments on “A regional chemical transport modeling to identify the influences of biomass burning during 2006 BASE-ASIA” by J. S. Fu et al.', Anonymous Referee #2, 29 Mar 2011
- AC C2952: 'Respond to Anonymous Referee #2', Joshua Fu, 08 May 2011
-
RC C755: 'MS No.: acp-2010-736', Anonymous Referee #1, 11 Mar 2011
- AC C2951: 'Respond to Anonymous Referee #1', Joshua Fu, 08 May 2011
-
RC C1304: 'Interactive comments on “A regional chemical transport modeling to identify the influences of biomass burning during 2006 BASE-ASIA” by J. S. Fu et al.', Anonymous Referee #2, 29 Mar 2011
- AC C2952: 'Respond to Anonymous Referee #2', Joshua Fu, 08 May 2011
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Cited
5 citations as recorded by crossref.
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- Total gaseous mercury levels over the Northwestern Pacific Ocean and around Iceland: Oceanic, volcanic and geothermal influences J. Yu et al. 10.2343/geochemj.2.0376
- Ozone production from the interaction of wildfire and biogenic emissions: a case study in Russia during spring 2006 E. Bossioli et al. 10.5194/acp-12-7931-2012
- Contributions of aerosol composition and sources to particulate optical properties in a southern coastal city of China J. Tian et al. 10.1016/j.atmosres.2019.104744