Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM
The presence of light-absorbing aerosol particles deposited on arctic snow and sea ice influences the surface albedo, causing greater shortwave absorption, warming, and loss of snow and sea ice, lowering the albedo further. The Community Earth System Model version 1 (CESM1) now includes the radiativ...
Published in: | Atmospheric Chemistry and Physics |
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Copernicus Publications
2012
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00045885 2023-05-15T13:10:59+02:00 Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM Goldenson, N. Doherty, S. J. Bitz, C. M. Holland, M. M. Light, B. Conley, A. J. 2012-09 electronic https://doi.org/10.5194/acp-12-7903-2012 https://noa.gwlb.de/receive/cop_mods_00045885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00045505/acp-12-7903-2012.pdf https://acp.copernicus.org/articles/12/7903/2012/acp-12-7903-2012.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-12-7903-2012 https://noa.gwlb.de/receive/cop_mods_00045885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00045505/acp-12-7903-2012.pdf https://acp.copernicus.org/articles/12/7903/2012/acp-12-7903-2012.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2012 ftnonlinearchiv https://doi.org/10.5194/acp-12-7903-2012 2022-02-08T22:39:21Z The presence of light-absorbing aerosol particles deposited on arctic snow and sea ice influences the surface albedo, causing greater shortwave absorption, warming, and loss of snow and sea ice, lowering the albedo further. The Community Earth System Model version 1 (CESM1) now includes the radiative effects of light-absorbing particles in snow on land and sea ice and in sea ice itself. We investigate the model response to the deposition of black carbon and dust to both snow and sea ice. For these purposes we employ a slab ocean version of CESM1, using the Community Atmosphere Model version 4 (CAM4), run to equilibrium for year 2000 levels of CO2 and fixed aerosol deposition. We construct experiments with and without aerosol deposition, with dust or black carbon deposition alone, and with varying quantities of black carbon and dust to approximate year 1850 and 2000 deposition fluxes. The year 2000 deposition fluxes of both dust and black carbon cause 1–2 °C of surface warming over large areas of the Arctic Ocean and sub-Arctic seas in autumn and winter and in patches of Northern land in every season. Atmospheric circulation changes are a key component of the surface-warming pattern. Arctic sea ice thins by on average about 30 cm. Simulations with year 1850 aerosol deposition are not substantially different from those with year 2000 deposition, given constant levels of CO2. The climatic impact of particulate impurities deposited over land exceeds that of particles deposited over sea ice. Even the surface warming over the sea ice and sea ice thinning depends more upon light-absorbing particles deposited over land. For CO2 doubled relative to year 2000 levels, the climate impact of particulate impurities in snow and sea ice is substantially lower than for the year 2000 equilibrium simulation. Article in Journal/Newspaper albedo Arctic Arctic Ocean black carbon Sea ice Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean Atmospheric Chemistry and Physics 12 17 7903 7920 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Goldenson, N. Doherty, S. J. Bitz, C. M. Holland, M. M. Light, B. Conley, A. J. Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM |
topic_facet |
article Verlagsveröffentlichung |
description |
The presence of light-absorbing aerosol particles deposited on arctic snow and sea ice influences the surface albedo, causing greater shortwave absorption, warming, and loss of snow and sea ice, lowering the albedo further. The Community Earth System Model version 1 (CESM1) now includes the radiative effects of light-absorbing particles in snow on land and sea ice and in sea ice itself. We investigate the model response to the deposition of black carbon and dust to both snow and sea ice. For these purposes we employ a slab ocean version of CESM1, using the Community Atmosphere Model version 4 (CAM4), run to equilibrium for year 2000 levels of CO2 and fixed aerosol deposition. We construct experiments with and without aerosol deposition, with dust or black carbon deposition alone, and with varying quantities of black carbon and dust to approximate year 1850 and 2000 deposition fluxes. The year 2000 deposition fluxes of both dust and black carbon cause 1–2 °C of surface warming over large areas of the Arctic Ocean and sub-Arctic seas in autumn and winter and in patches of Northern land in every season. Atmospheric circulation changes are a key component of the surface-warming pattern. Arctic sea ice thins by on average about 30 cm. Simulations with year 1850 aerosol deposition are not substantially different from those with year 2000 deposition, given constant levels of CO2. The climatic impact of particulate impurities deposited over land exceeds that of particles deposited over sea ice. Even the surface warming over the sea ice and sea ice thinning depends more upon light-absorbing particles deposited over land. For CO2 doubled relative to year 2000 levels, the climate impact of particulate impurities in snow and sea ice is substantially lower than for the year 2000 equilibrium simulation. |
format |
Article in Journal/Newspaper |
author |
Goldenson, N. Doherty, S. J. Bitz, C. M. Holland, M. M. Light, B. Conley, A. J. |
author_facet |
Goldenson, N. Doherty, S. J. Bitz, C. M. Holland, M. M. Light, B. Conley, A. J. |
author_sort |
Goldenson, N. |
title |
Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM |
title_short |
Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM |
title_full |
Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM |
title_fullStr |
Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM |
title_full_unstemmed |
Arctic climate response to forcing from light-absorbing particles in snow and sea ice in CESM |
title_sort |
arctic climate response to forcing from light-absorbing particles in snow and sea ice in cesm |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/acp-12-7903-2012 https://noa.gwlb.de/receive/cop_mods_00045885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00045505/acp-12-7903-2012.pdf https://acp.copernicus.org/articles/12/7903/2012/acp-12-7903-2012.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
albedo Arctic Arctic Ocean black carbon Sea ice |
genre_facet |
albedo Arctic Arctic Ocean black carbon Sea ice |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-12-7903-2012 https://noa.gwlb.de/receive/cop_mods_00045885 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00045505/acp-12-7903-2012.pdf https://acp.copernicus.org/articles/12/7903/2012/acp-12-7903-2012.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-12-7903-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
17 |
container_start_page |
7903 |
op_container_end_page |
7920 |
_version_ |
1766245489891606528 |