Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008
Reliable assessment of the impact of aerosols emitted from boreal forest fires on the Arctic climate necessitates improved understanding of emissions and the microphysical properties of carbonaceous (black carbon (BC) and organic aerosols (OA)) and inorganic aerosols. The size distributions of BC we...
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ftcdlib:oai:escholarship.org/ark:/13030/qt58s507qn 2023-05-15T15:00:33+02:00 Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 Kondo, Y Matsui, H Moteki, N Sahu, L Takegawa, N Kajino, M Zhao, Y Cubison, MJ Jimenez, JL Vay, S Diskin, GS Anderson, B Wisthaler, A Mikoviny, T Fuelberg, HE Blake, DR Huey, G Weinheimer, AJ Knapp, DJ Brune, WH 2011-01-01 application/pdf https://escholarship.org/uc/item/58s507qn unknown eScholarship, University of California qt58s507qn https://escholarship.org/uc/item/58s507qn CC-BY CC-BY Journal of Geophysical Research Atmospheres, vol 116, iss 8 Meteorology & Atmospheric Sciences article 2011 ftcdlib 2020-03-20T23:55:55Z Reliable assessment of the impact of aerosols emitted from boreal forest fires on the Arctic climate necessitates improved understanding of emissions and the microphysical properties of carbonaceous (black carbon (BC) and organic aerosols (OA)) and inorganic aerosols. The size distributions of BC were measured by an SP2 based on the laser-induced incandescence technique on board the DC-8 aircraft during the NASA ARCTAS campaign. Aircraft sampling was made in fresh plumes strongly impacted by wildfires in North America (Canada and California) in summer 2008 and in those transported from Asia (Siberia in Russia and Kazakhstan) in spring 2008. We extracted biomass burning plumes using particle and tracer (CO, CH3CN, and CH2Cl2) data. OA constituted the dominant fraction of aerosols mass in the submicron range. The large majority of the emitted particles did not contain BC. We related the combustion phase of the fire as represented by the modified combustion efficiency (MCE) to the emission ratios between BC and other species. In particular, we derived the average emission ratios of BC/CO = 2.3 ± 2.2 and 8.5 ± 5.4 ng m-3/ppbv for BB in North America and Asia, respectively. The difference in the BC/CO emission ratios is likely due to the difference in MCE. The count median diameters and geometric standard deviations of the lognormal size distribution of BC in the BB plumes were 136-141 nm and 1.32-1.36, respectively, and depended little on MCE. These BC particles were thickly coated, with shell/core ratios of 1.3-1.6. These parameters can be used directly for improving model estimates of the impact of BB in the Arctic. Copyright 2011 by the American Geophysical Union. Article in Journal/Newspaper Arctic black carbon Siberia University of California: eScholarship Arctic Canada |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Meteorology & Atmospheric Sciences |
spellingShingle |
Meteorology & Atmospheric Sciences Kondo, Y Matsui, H Moteki, N Sahu, L Takegawa, N Kajino, M Zhao, Y Cubison, MJ Jimenez, JL Vay, S Diskin, GS Anderson, B Wisthaler, A Mikoviny, T Fuelberg, HE Blake, DR Huey, G Weinheimer, AJ Knapp, DJ Brune, WH Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 |
topic_facet |
Meteorology & Atmospheric Sciences |
description |
Reliable assessment of the impact of aerosols emitted from boreal forest fires on the Arctic climate necessitates improved understanding of emissions and the microphysical properties of carbonaceous (black carbon (BC) and organic aerosols (OA)) and inorganic aerosols. The size distributions of BC were measured by an SP2 based on the laser-induced incandescence technique on board the DC-8 aircraft during the NASA ARCTAS campaign. Aircraft sampling was made in fresh plumes strongly impacted by wildfires in North America (Canada and California) in summer 2008 and in those transported from Asia (Siberia in Russia and Kazakhstan) in spring 2008. We extracted biomass burning plumes using particle and tracer (CO, CH3CN, and CH2Cl2) data. OA constituted the dominant fraction of aerosols mass in the submicron range. The large majority of the emitted particles did not contain BC. We related the combustion phase of the fire as represented by the modified combustion efficiency (MCE) to the emission ratios between BC and other species. In particular, we derived the average emission ratios of BC/CO = 2.3 ± 2.2 and 8.5 ± 5.4 ng m-3/ppbv for BB in North America and Asia, respectively. The difference in the BC/CO emission ratios is likely due to the difference in MCE. The count median diameters and geometric standard deviations of the lognormal size distribution of BC in the BB plumes were 136-141 nm and 1.32-1.36, respectively, and depended little on MCE. These BC particles were thickly coated, with shell/core ratios of 1.3-1.6. These parameters can be used directly for improving model estimates of the impact of BB in the Arctic. Copyright 2011 by the American Geophysical Union. |
format |
Article in Journal/Newspaper |
author |
Kondo, Y Matsui, H Moteki, N Sahu, L Takegawa, N Kajino, M Zhao, Y Cubison, MJ Jimenez, JL Vay, S Diskin, GS Anderson, B Wisthaler, A Mikoviny, T Fuelberg, HE Blake, DR Huey, G Weinheimer, AJ Knapp, DJ Brune, WH |
author_facet |
Kondo, Y Matsui, H Moteki, N Sahu, L Takegawa, N Kajino, M Zhao, Y Cubison, MJ Jimenez, JL Vay, S Diskin, GS Anderson, B Wisthaler, A Mikoviny, T Fuelberg, HE Blake, DR Huey, G Weinheimer, AJ Knapp, DJ Brune, WH |
author_sort |
Kondo, Y |
title |
Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 |
title_short |
Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 |
title_full |
Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 |
title_fullStr |
Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 |
title_full_unstemmed |
Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008 |
title_sort |
emissions of black carbon, organic, and inorganic aerosols from biomass burning in north america and asia in 2008 |
publisher |
eScholarship, University of California |
publishDate |
2011 |
url |
https://escholarship.org/uc/item/58s507qn |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic black carbon Siberia |
genre_facet |
Arctic black carbon Siberia |
op_source |
Journal of Geophysical Research Atmospheres, vol 116, iss 8 |
op_relation |
qt58s507qn https://escholarship.org/uc/item/58s507qn |
op_rights |
CC-BY |
op_rightsnorm |
CC-BY |
_version_ |
1766332636319449088 |