Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling
Black carbon (BC) contributes to Arctic climate warming, yet source attributions are inaccurate due to lacking observational constraints and uncertainties in emission inventories. Year-round, isotope-constrained observations reveal strong seasonal variations in BC sources with a consistent and synch...
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ftosti:oai:osti.gov:1626003 2023-07-30T04:00:23+02:00 Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling Winiger, Patrik Barrett, Tate E. Sheesley, Rebecca J. Huang, Lin Sharma, Sangeeta Barrie, Leonard A. Yttri, Karl Espen Evangeliou, Nikolaos Eckhardt, Sabine Stohl, Andreas Klimont, Zbigniew Heyes, C. Semiletov, I. P. Dudarev, O. V. Charkin, A. Shakhova, Natalia Holmstrand, Henry Andersson, August Gustafsson, Örjan 2023-02-09 application/pdf http://www.osti.gov/servlets/purl/1626003 https://www.osti.gov/biblio/1626003 https://doi.org/10.1126/sciadv.aau8052 unknown http://www.osti.gov/servlets/purl/1626003 https://www.osti.gov/biblio/1626003 https://doi.org/10.1126/sciadv.aau8052 doi:10.1126/sciadv.aau8052 54 ENVIRONMENTAL SCIENCES 2023 ftosti https://doi.org/10.1126/sciadv.aau8052 2023-07-11T09:42:29Z Black carbon (BC) contributes to Arctic climate warming, yet source attributions are inaccurate due to lacking observational constraints and uncertainties in emission inventories. Year-round, isotope-constrained observations reveal strong seasonal variations in BC sources with a consistent and synchronous pattern at all Arctic sites. These sources were dominated by emissions from fossil fuel combustion in the winter and by biomass burning in the summer. The annual mean source of BC to the circum-Arctic was 39 ± 10% from biomass burning. Comparison of transport-model predictions with the observations showed good agreement for BC concentrations, with larger discrepancies for (fossil/biomass burning) sources. The accuracy of simulated BC concentration, but not of origin, points to misallocations of emissions in the emission inventories. The consistency in seasonal source contributions of BC throughout the Arctic provides strong justification for targeted emission reductions to limit the impact of BC on climate warming in the Arctic and beyond. Other/Unknown Material Arctic black carbon SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Science Advances 5 2 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
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54 ENVIRONMENTAL SCIENCES Winiger, Patrik Barrett, Tate E. Sheesley, Rebecca J. Huang, Lin Sharma, Sangeeta Barrie, Leonard A. Yttri, Karl Espen Evangeliou, Nikolaos Eckhardt, Sabine Stohl, Andreas Klimont, Zbigniew Heyes, C. Semiletov, I. P. Dudarev, O. V. Charkin, A. Shakhova, Natalia Holmstrand, Henry Andersson, August Gustafsson, Örjan Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
Black carbon (BC) contributes to Arctic climate warming, yet source attributions are inaccurate due to lacking observational constraints and uncertainties in emission inventories. Year-round, isotope-constrained observations reveal strong seasonal variations in BC sources with a consistent and synchronous pattern at all Arctic sites. These sources were dominated by emissions from fossil fuel combustion in the winter and by biomass burning in the summer. The annual mean source of BC to the circum-Arctic was 39 ± 10% from biomass burning. Comparison of transport-model predictions with the observations showed good agreement for BC concentrations, with larger discrepancies for (fossil/biomass burning) sources. The accuracy of simulated BC concentration, but not of origin, points to misallocations of emissions in the emission inventories. The consistency in seasonal source contributions of BC throughout the Arctic provides strong justification for targeted emission reductions to limit the impact of BC on climate warming in the Arctic and beyond. |
author |
Winiger, Patrik Barrett, Tate E. Sheesley, Rebecca J. Huang, Lin Sharma, Sangeeta Barrie, Leonard A. Yttri, Karl Espen Evangeliou, Nikolaos Eckhardt, Sabine Stohl, Andreas Klimont, Zbigniew Heyes, C. Semiletov, I. P. Dudarev, O. V. Charkin, A. Shakhova, Natalia Holmstrand, Henry Andersson, August Gustafsson, Örjan |
author_facet |
Winiger, Patrik Barrett, Tate E. Sheesley, Rebecca J. Huang, Lin Sharma, Sangeeta Barrie, Leonard A. Yttri, Karl Espen Evangeliou, Nikolaos Eckhardt, Sabine Stohl, Andreas Klimont, Zbigniew Heyes, C. Semiletov, I. P. Dudarev, O. V. Charkin, A. Shakhova, Natalia Holmstrand, Henry Andersson, August Gustafsson, Örjan |
author_sort |
Winiger, Patrik |
title |
Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling |
title_short |
Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling |
title_full |
Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling |
title_fullStr |
Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling |
title_full_unstemmed |
Source apportionment of circum-Arctic atmospheric black carbon from isotopes and modeling |
title_sort |
source apportionment of circum-arctic atmospheric black carbon from isotopes and modeling |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1626003 https://www.osti.gov/biblio/1626003 https://doi.org/10.1126/sciadv.aau8052 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic black carbon |
genre_facet |
Arctic black carbon |
op_relation |
http://www.osti.gov/servlets/purl/1626003 https://www.osti.gov/biblio/1626003 https://doi.org/10.1126/sciadv.aau8052 doi:10.1126/sciadv.aau8052 |
op_doi |
https://doi.org/10.1126/sciadv.aau8052 |
container_title |
Science Advances |
container_volume |
5 |
container_issue |
2 |
_version_ |
1772810882154233856 |