Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf
The mechanisms behind Arctic warming and associated climate changes are difficult to discern. Also, the complex local processes and feedbacks like aerosol-cloud-climate interactions are yet to be quantified. Here, using the Community Earth System Model (CAM5) experiments, with emission enhancement o...
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ftfrontimediafig:oai:figshare.com:article/16947196 2023-05-15T14:36:56+02:00 Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf Acharya Asutosh Suvarna Fadnavis M. Nuncio Rolf Müller Sarat C. Tripathy 2021-11-08T04:49:06Z https://doi.org/10.3389/fenvs.2021.766538.s001 https://figshare.com/articles/presentation/Presentation1_The_Arctic_Temperature_Response_to_Global_and_Regional_Anthropogenic_Sulfate_Aerosols_pdf/16947196 unknown doi:10.3389/fenvs.2021.766538.s001 https://figshare.com/articles/presentation/Presentation1_The_Arctic_Temperature_Response_to_Global_and_Regional_Anthropogenic_Sulfate_Aerosols_pdf/16947196 CC BY 4.0 CC-BY Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies arctic temperature transport of sulfate aerosols cloud radiative forcing climate change arctic summer cooling and winter warming Text Presentation 2021 ftfrontimediafig https://doi.org/10.3389/fenvs.2021.766538.s001 2021-11-11T00:00:19Z The mechanisms behind Arctic warming and associated climate changes are difficult to discern. Also, the complex local processes and feedbacks like aerosol-cloud-climate interactions are yet to be quantified. Here, using the Community Earth System Model (CAM5) experiments, with emission enhancement of anthropogenic sulfate 1) five-fold globally, 2) ten-times over Asia, and 3) ten-times over Europe we show that regional emissions of sulfate aerosols alter seasonal warming over the Arctic, i.e., colder summer and warmer winter. European emissions play a dominant role in cooling during the summer season (0.7 K), while Asian emissions dominate the warming during the winter season (maximum ∼0.6 K) in the Arctic surface. The cooling/warming is associated with a negative/positive cloud radiative forcing. During the summer season increase in low–mid level clouds, induced by sulfate emissions, favours the solar dimming effect that reduces the downwelling radiation to the surface and thus leads to surface cooling. Warmer winters are associated with enhanced high-level clouds that induce a positive radiative forcing at the top of the atmosphere. This study points to the importance of international strategies being implemented to control sulfate emissions to combat air pollution. Such strategies will also affect the Arctic cooling/warming associated with a cloud radiative forcing caused by sulfate emission change. Conference Object Arctic Climate change Frontiers: Figshare Arctic |
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Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
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topic |
Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies arctic temperature transport of sulfate aerosols cloud radiative forcing climate change arctic summer cooling and winter warming |
spellingShingle |
Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies arctic temperature transport of sulfate aerosols cloud radiative forcing climate change arctic summer cooling and winter warming Acharya Asutosh Suvarna Fadnavis M. Nuncio Rolf Müller Sarat C. Tripathy Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf |
topic_facet |
Environmental Science Climate Science Environmental Impact Assessment Environmental Management Soil Biology Water Treatment Processes Environmental Engineering Design Environmental Engineering Modelling Environmental Technologies arctic temperature transport of sulfate aerosols cloud radiative forcing climate change arctic summer cooling and winter warming |
description |
The mechanisms behind Arctic warming and associated climate changes are difficult to discern. Also, the complex local processes and feedbacks like aerosol-cloud-climate interactions are yet to be quantified. Here, using the Community Earth System Model (CAM5) experiments, with emission enhancement of anthropogenic sulfate 1) five-fold globally, 2) ten-times over Asia, and 3) ten-times over Europe we show that regional emissions of sulfate aerosols alter seasonal warming over the Arctic, i.e., colder summer and warmer winter. European emissions play a dominant role in cooling during the summer season (0.7 K), while Asian emissions dominate the warming during the winter season (maximum ∼0.6 K) in the Arctic surface. The cooling/warming is associated with a negative/positive cloud radiative forcing. During the summer season increase in low–mid level clouds, induced by sulfate emissions, favours the solar dimming effect that reduces the downwelling radiation to the surface and thus leads to surface cooling. Warmer winters are associated with enhanced high-level clouds that induce a positive radiative forcing at the top of the atmosphere. This study points to the importance of international strategies being implemented to control sulfate emissions to combat air pollution. Such strategies will also affect the Arctic cooling/warming associated with a cloud radiative forcing caused by sulfate emission change. |
format |
Conference Object |
author |
Acharya Asutosh Suvarna Fadnavis M. Nuncio Rolf Müller Sarat C. Tripathy |
author_facet |
Acharya Asutosh Suvarna Fadnavis M. Nuncio Rolf Müller Sarat C. Tripathy |
author_sort |
Acharya Asutosh |
title |
Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf |
title_short |
Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf |
title_full |
Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf |
title_fullStr |
Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf |
title_full_unstemmed |
Presentation1_The Arctic Temperature Response to Global and Regional Anthropogenic Sulfate Aerosols.pdf |
title_sort |
presentation1_the arctic temperature response to global and regional anthropogenic sulfate aerosols.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/fenvs.2021.766538.s001 https://figshare.com/articles/presentation/Presentation1_The_Arctic_Temperature_Response_to_Global_and_Regional_Anthropogenic_Sulfate_Aerosols_pdf/16947196 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_relation |
doi:10.3389/fenvs.2021.766538.s001 https://figshare.com/articles/presentation/Presentation1_The_Arctic_Temperature_Response_to_Global_and_Regional_Anthropogenic_Sulfate_Aerosols_pdf/16947196 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fenvs.2021.766538.s001 |
_version_ |
1766309453694500864 |