Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing
Source attribution of Arctic sulfate and its radiative forcing due to aerosol-radiation interactions (RFari) for 2010–2014 are quantified in this study using the Community Earth System Model equipped with an explicit sulfur source-tagging technique. The model roughly reproduces the seasonal pattern...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | http://www.osti.gov/servlets/purl/1423416 https://www.osti.gov/biblio/1423416 https://doi.org/10.1002/2017JD027298 |
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ftosti:oai:osti.gov:1423416 2023-07-30T04:00:20+02:00 Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing Yang, Yang Wang, Hailong Smith, Steven J. Easter, Richard C. Rasch, Philip J. 2022-05-23 application/pdf http://www.osti.gov/servlets/purl/1423416 https://www.osti.gov/biblio/1423416 https://doi.org/10.1002/2017JD027298 unknown http://www.osti.gov/servlets/purl/1423416 https://www.osti.gov/biblio/1423416 https://doi.org/10.1002/2017JD027298 doi:10.1002/2017JD027298 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.1002/2017JD027298 2023-07-11T09:24:24Z Source attribution of Arctic sulfate and its radiative forcing due to aerosol-radiation interactions (RFari) for 2010–2014 are quantified in this study using the Community Earth System Model equipped with an explicit sulfur source-tagging technique. The model roughly reproduces the seasonal pattern of sulfate but has biases in simulating the magnitude of near-surface concentrations and vertical distribution. Regions that have high emissions and/or are near/within the Arctic present relatively large contributions to Arctic sulfate burden, with the largest contribution from sources in East Asia (27%). Seasonal variations of the contribution to Arctic sulfate burden from remote sources are strongly influenced by meteorology. The mean RFari of anthropogenic sulfate offsets one third of the positive top of the atmosphere (TOA) RFari from black carbon. A 20% global reduction in anthropogenic SO 2 emissions leads to a net Arctic TOA forcing increase of +0.019W m –2 . These results indicate that a joint reduction in BC and SO 2 emissions could prevent at least some of the Arctic warming from any future SO 2 emission reductions. Furthermore, sulfate RFari efficiency calculations suggest that source regions with short transport pathways and meteorology favoring longer lifetimes are more efficient in influencing the Arctic sulfate RFari. Based on Arctic climate sensitivity factors, about 0.19 K of the Arctic surface temperature cooling is attributed to anthropogenic sulfate, with –0.05 K of that from sources in East Asia, relative to preindustrial conditions. Other/Unknown Material Arctic black carbon SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Journal of Geophysical Research: Atmospheres 123 3 1899 1918 |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
spellingShingle |
54 ENVIRONMENTAL SCIENCES Yang, Yang Wang, Hailong Smith, Steven J. Easter, Richard C. Rasch, Philip J. Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
Source attribution of Arctic sulfate and its radiative forcing due to aerosol-radiation interactions (RFari) for 2010–2014 are quantified in this study using the Community Earth System Model equipped with an explicit sulfur source-tagging technique. The model roughly reproduces the seasonal pattern of sulfate but has biases in simulating the magnitude of near-surface concentrations and vertical distribution. Regions that have high emissions and/or are near/within the Arctic present relatively large contributions to Arctic sulfate burden, with the largest contribution from sources in East Asia (27%). Seasonal variations of the contribution to Arctic sulfate burden from remote sources are strongly influenced by meteorology. The mean RFari of anthropogenic sulfate offsets one third of the positive top of the atmosphere (TOA) RFari from black carbon. A 20% global reduction in anthropogenic SO 2 emissions leads to a net Arctic TOA forcing increase of +0.019W m –2 . These results indicate that a joint reduction in BC and SO 2 emissions could prevent at least some of the Arctic warming from any future SO 2 emission reductions. Furthermore, sulfate RFari efficiency calculations suggest that source regions with short transport pathways and meteorology favoring longer lifetimes are more efficient in influencing the Arctic sulfate RFari. Based on Arctic climate sensitivity factors, about 0.19 K of the Arctic surface temperature cooling is attributed to anthropogenic sulfate, with –0.05 K of that from sources in East Asia, relative to preindustrial conditions. |
author |
Yang, Yang Wang, Hailong Smith, Steven J. Easter, Richard C. Rasch, Philip J. |
author_facet |
Yang, Yang Wang, Hailong Smith, Steven J. Easter, Richard C. Rasch, Philip J. |
author_sort |
Yang, Yang |
title |
Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing |
title_short |
Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing |
title_full |
Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing |
title_fullStr |
Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing |
title_full_unstemmed |
Sulfate Aerosol in the Arctic: Source Attribution and Radiative Forcing |
title_sort |
sulfate aerosol in the arctic: source attribution and radiative forcing |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1423416 https://www.osti.gov/biblio/1423416 https://doi.org/10.1002/2017JD027298 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic black carbon |
genre_facet |
Arctic black carbon |
op_relation |
http://www.osti.gov/servlets/purl/1423416 https://www.osti.gov/biblio/1423416 https://doi.org/10.1002/2017JD027298 doi:10.1002/2017JD027298 |
op_doi |
https://doi.org/10.1002/2017JD027298 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
123 |
container_issue |
3 |
container_start_page |
1899 |
op_container_end_page |
1918 |
_version_ |
1772810838356262912 |