Climate pathways behind phytoplankton-induced atmospheric warming
We investigate the ways in which marine biologically mediated heating increases the surface atmospheric temperature. While the effects of phytoplankton light absorption on the ocean have gained attention over the past years, the impact of this biogeophysical mechanism on the atmosphere is still uncl...
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2022
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00059893 2024-09-15T18:35:29+00:00 Climate pathways behind phytoplankton-induced atmospheric warming Asselot, Rémy Lunkeit, Frank Holden, Philip B. Hense, Inga 2022-01 electronic https://doi.org/10.5194/bg-19-223-2022 https://noa.gwlb.de/receive/cop_mods_00059893 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059542/bg-19-223-2022.pdf https://bg.copernicus.org/articles/19/223/2022/bg-19-223-2022.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-19-223-2022 https://noa.gwlb.de/receive/cop_mods_00059893 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059542/bg-19-223-2022.pdf https://bg.copernicus.org/articles/19/223/2022/bg-19-223-2022.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2022 ftnonlinearchiv https://doi.org/10.5194/bg-19-223-2022 2024-06-26T04:34:57Z We investigate the ways in which marine biologically mediated heating increases the surface atmospheric temperature. While the effects of phytoplankton light absorption on the ocean have gained attention over the past years, the impact of this biogeophysical mechanism on the atmosphere is still unclear. Phytoplankton light absorption warms the surface of the ocean, which in turn affects the air–sea heat and CO2 exchanges. However, the contribution of air–sea heat versus CO2 fluxes in the phytoplankton-induced atmospheric warming has not been yet determined. Different so-called climate pathways are involved. We distinguish heat exchange, CO2 exchange, dissolved CO2, solubility of CO2 and sea-ice-covered area. To shed more light on this subject, we employ the EcoGEnIE Earth system model that includes a new light penetration scheme and isolate the effects of individual fluxes. Our results indicate that phytoplankton-induced changes in air–sea CO2 exchange warm the atmosphere by 0.71 ∘C due to higher greenhouse gas concentrations. The phytoplankton-induced changes in air–sea heat exchange cool the atmosphere by 0.02 ∘C due to a larger amount of outgoing longwave radiation. Overall, the enhanced air–sea CO2 exchange due to phytoplankton light absorption is the main driver in the biologically induced atmospheric heating. Article in Journal/Newspaper Sea ice Niedersächsisches Online-Archiv NOA Biogeosciences 19 1 223 239 |
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article Verlagsveröffentlichung Asselot, Rémy Lunkeit, Frank Holden, Philip B. Hense, Inga Climate pathways behind phytoplankton-induced atmospheric warming |
topic_facet |
article Verlagsveröffentlichung |
description |
We investigate the ways in which marine biologically mediated heating increases the surface atmospheric temperature. While the effects of phytoplankton light absorption on the ocean have gained attention over the past years, the impact of this biogeophysical mechanism on the atmosphere is still unclear. Phytoplankton light absorption warms the surface of the ocean, which in turn affects the air–sea heat and CO2 exchanges. However, the contribution of air–sea heat versus CO2 fluxes in the phytoplankton-induced atmospheric warming has not been yet determined. Different so-called climate pathways are involved. We distinguish heat exchange, CO2 exchange, dissolved CO2, solubility of CO2 and sea-ice-covered area. To shed more light on this subject, we employ the EcoGEnIE Earth system model that includes a new light penetration scheme and isolate the effects of individual fluxes. Our results indicate that phytoplankton-induced changes in air–sea CO2 exchange warm the atmosphere by 0.71 ∘C due to higher greenhouse gas concentrations. The phytoplankton-induced changes in air–sea heat exchange cool the atmosphere by 0.02 ∘C due to a larger amount of outgoing longwave radiation. Overall, the enhanced air–sea CO2 exchange due to phytoplankton light absorption is the main driver in the biologically induced atmospheric heating. |
format |
Article in Journal/Newspaper |
author |
Asselot, Rémy Lunkeit, Frank Holden, Philip B. Hense, Inga |
author_facet |
Asselot, Rémy Lunkeit, Frank Holden, Philip B. Hense, Inga |
author_sort |
Asselot, Rémy |
title |
Climate pathways behind phytoplankton-induced atmospheric warming |
title_short |
Climate pathways behind phytoplankton-induced atmospheric warming |
title_full |
Climate pathways behind phytoplankton-induced atmospheric warming |
title_fullStr |
Climate pathways behind phytoplankton-induced atmospheric warming |
title_full_unstemmed |
Climate pathways behind phytoplankton-induced atmospheric warming |
title_sort |
climate pathways behind phytoplankton-induced atmospheric warming |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/bg-19-223-2022 https://noa.gwlb.de/receive/cop_mods_00059893 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059542/bg-19-223-2022.pdf https://bg.copernicus.org/articles/19/223/2022/bg-19-223-2022.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-19-223-2022 https://noa.gwlb.de/receive/cop_mods_00059893 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00059542/bg-19-223-2022.pdf https://bg.copernicus.org/articles/19/223/2022/bg-19-223-2022.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-19-223-2022 |
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Biogeosciences |
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19 |
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1 |
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223 |
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239 |
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1810478666081107968 |