Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios
The northern-high-latitude permafrost contains almost twice the carbon content of the atmosphere, and it is widely considered to be a non-linear and tipping element in the earth's climate system under global warming. Solar geoengineering is a means of mitigating temperature rise and reduces som...
Published in: | Earth System Dynamics |
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Copernicus Publications
2023
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00064650 2023-05-15T17:55:37+02:00 Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios Chen, Yangxin Ji, Duoying Zhang, Qian Moore, John C. Boucher, Olivier Jones, Andy Lurton, Thibaut Mills, Michael J. Niemeier, Ulrike Séférian, Roland Tilmes, Simone 2023-01 electronic https://doi.org/10.5194/esd-14-55-2023 https://noa.gwlb.de/receive/cop_mods_00064650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063391/esd-14-55-2023.pdf https://esd.copernicus.org/articles/14/55/2023/esd-14-55-2023.pdf eng eng Copernicus Publications Earth System Dynamics -- http://www.earth-syst-dynam.net/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2578793 -- 2190-4987 https://doi.org/10.5194/esd-14-55-2023 https://noa.gwlb.de/receive/cop_mods_00064650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063391/esd-14-55-2023.pdf https://esd.copernicus.org/articles/14/55/2023/esd-14-55-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/esd-14-55-2023 2023-01-30T00:13:22Z The northern-high-latitude permafrost contains almost twice the carbon content of the atmosphere, and it is widely considered to be a non-linear and tipping element in the earth's climate system under global warming. Solar geoengineering is a means of mitigating temperature rise and reduces some of the associated climate impacts by increasing the planetary albedo; the permafrost thaw is expected to be moderated under slower temperature rise. We analyze the permafrost response as simulated by five fully coupled earth system models (ESMs) and one offline land surface model under four future scenarios; two solar geoengineering scenarios (G6solar and G6sulfur) based on the high-emission scenario (ssp585) restore the global temperature from the ssp585 levels to the moderate-mitigation scenario (ssp245) levels via solar dimming and stratospheric aerosol injection. G6solar and G6sulfur can slow the northern-high-latitude permafrost degradation but cannot restore the permafrost states from ssp585 to those under ssp245. G6solar and G6sulfur tend to produce a deeper active layer than ssp245 and expose more thawed soil organic carbon (SOC) due to robust residual high-latitude warming, especially over northern Eurasia. G6solar and G6sulfur preserve more SOC of 4.6 ± 4.6 and 3.4 ± 4.8 Pg C (coupled ESM simulations) or 16.4 ± 4.7 and 12.3 ± 7.9 Pg C (offline land surface model simulations), respectively, than ssp585 in the northern near-surface permafrost region. The turnover times of SOC decline slower under G6solar and G6sulfur than ssp585 but faster than ssp245. The permafrost carbon–climate feedback is expected to be weaker under solar geoengineering. Article in Journal/Newspaper permafrost Niedersächsisches Online-Archiv NOA Earth System Dynamics 14 1 55 79 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Chen, Yangxin Ji, Duoying Zhang, Qian Moore, John C. Boucher, Olivier Jones, Andy Lurton, Thibaut Mills, Michael J. Niemeier, Ulrike Séférian, Roland Tilmes, Simone Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
topic_facet |
article Verlagsveröffentlichung |
description |
The northern-high-latitude permafrost contains almost twice the carbon content of the atmosphere, and it is widely considered to be a non-linear and tipping element in the earth's climate system under global warming. Solar geoengineering is a means of mitigating temperature rise and reduces some of the associated climate impacts by increasing the planetary albedo; the permafrost thaw is expected to be moderated under slower temperature rise. We analyze the permafrost response as simulated by five fully coupled earth system models (ESMs) and one offline land surface model under four future scenarios; two solar geoengineering scenarios (G6solar and G6sulfur) based on the high-emission scenario (ssp585) restore the global temperature from the ssp585 levels to the moderate-mitigation scenario (ssp245) levels via solar dimming and stratospheric aerosol injection. G6solar and G6sulfur can slow the northern-high-latitude permafrost degradation but cannot restore the permafrost states from ssp585 to those under ssp245. G6solar and G6sulfur tend to produce a deeper active layer than ssp245 and expose more thawed soil organic carbon (SOC) due to robust residual high-latitude warming, especially over northern Eurasia. G6solar and G6sulfur preserve more SOC of 4.6 ± 4.6 and 3.4 ± 4.8 Pg C (coupled ESM simulations) or 16.4 ± 4.7 and 12.3 ± 7.9 Pg C (offline land surface model simulations), respectively, than ssp585 in the northern near-surface permafrost region. The turnover times of SOC decline slower under G6solar and G6sulfur than ssp585 but faster than ssp245. The permafrost carbon–climate feedback is expected to be weaker under solar geoengineering. |
format |
Article in Journal/Newspaper |
author |
Chen, Yangxin Ji, Duoying Zhang, Qian Moore, John C. Boucher, Olivier Jones, Andy Lurton, Thibaut Mills, Michael J. Niemeier, Ulrike Séférian, Roland Tilmes, Simone |
author_facet |
Chen, Yangxin Ji, Duoying Zhang, Qian Moore, John C. Boucher, Olivier Jones, Andy Lurton, Thibaut Mills, Michael J. Niemeier, Ulrike Séférian, Roland Tilmes, Simone |
author_sort |
Chen, Yangxin |
title |
Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
title_short |
Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
title_full |
Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
title_fullStr |
Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
title_full_unstemmed |
Northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
title_sort |
northern-high-latitude permafrost and terrestrial carbon response to two solar geoengineering scenarios |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/esd-14-55-2023 https://noa.gwlb.de/receive/cop_mods_00064650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063391/esd-14-55-2023.pdf https://esd.copernicus.org/articles/14/55/2023/esd-14-55-2023.pdf |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
Earth System Dynamics -- http://www.earth-syst-dynam.net/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2578793 -- 2190-4987 https://doi.org/10.5194/esd-14-55-2023 https://noa.gwlb.de/receive/cop_mods_00064650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00063391/esd-14-55-2023.pdf https://esd.copernicus.org/articles/14/55/2023/esd-14-55-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/esd-14-55-2023 |
container_title |
Earth System Dynamics |
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14 |
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1 |
container_start_page |
55 |
op_container_end_page |
79 |
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1766163580232663040 |