Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period
We investigate the changes in terrestrial natural methane emissions between the Last Glacial Maximum (LGM) and preindustrial (PI) periods by performing time-slice experiments with a methane-enabled version of MPI-ESM, the Max Planck Institute Earth System Model. We consider all natural sources of me...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00051050 2023-05-15T16:40:57+02:00 Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period Kleinen, Thomas Mikolajewicz, Uwe Brovkin, Victor 2020-03 electronic https://doi.org/10.5194/cp-16-575-2020 https://noa.gwlb.de/receive/cop_mods_00051050 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050707/cp-16-575-2020.pdf https://cp.copernicus.org/articles/16/575/2020/cp-16-575-2020.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-16-575-2020 https://noa.gwlb.de/receive/cop_mods_00051050 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050707/cp-16-575-2020.pdf https://cp.copernicus.org/articles/16/575/2020/cp-16-575-2020.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2020 ftnonlinearchiv https://doi.org/10.5194/cp-16-575-2020 2022-02-08T22:36:34Z We investigate the changes in terrestrial natural methane emissions between the Last Glacial Maximum (LGM) and preindustrial (PI) periods by performing time-slice experiments with a methane-enabled version of MPI-ESM, the Max Planck Institute Earth System Model. We consider all natural sources of methane except for emissions from wild animals and geological sources, i.e. emissions from wetlands, fires, and termites. Changes are dominated by changes in tropical wetland emissions, with mid-to-high-latitude wetlands playing a secondary role, and all other natural sources being of minor importance. The emissions are determined by the interplay of vegetation productivity, a function of CO2 and temperature; source area size, affected by sea level and ice sheet extent; and the state of the West African monsoon, with increased emissions from northern Africa during strong monsoon phases. We show that it is possible to explain the difference in atmospheric methane between LGM and PI purely by changes in emissions. As emissions more than double between LGM and PI, changes in the atmospheric lifetime of CH4, as proposed in other studies, are not required. Article in Journal/Newspaper Ice Sheet Niedersächsisches Online-Archiv NOA Climate of the Past 16 2 575 595 |
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article Verlagsveröffentlichung Kleinen, Thomas Mikolajewicz, Uwe Brovkin, Victor Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period |
topic_facet |
article Verlagsveröffentlichung |
description |
We investigate the changes in terrestrial natural methane emissions between the Last Glacial Maximum (LGM) and preindustrial (PI) periods by performing time-slice experiments with a methane-enabled version of MPI-ESM, the Max Planck Institute Earth System Model. We consider all natural sources of methane except for emissions from wild animals and geological sources, i.e. emissions from wetlands, fires, and termites. Changes are dominated by changes in tropical wetland emissions, with mid-to-high-latitude wetlands playing a secondary role, and all other natural sources being of minor importance. The emissions are determined by the interplay of vegetation productivity, a function of CO2 and temperature; source area size, affected by sea level and ice sheet extent; and the state of the West African monsoon, with increased emissions from northern Africa during strong monsoon phases. We show that it is possible to explain the difference in atmospheric methane between LGM and PI purely by changes in emissions. As emissions more than double between LGM and PI, changes in the atmospheric lifetime of CH4, as proposed in other studies, are not required. |
format |
Article in Journal/Newspaper |
author |
Kleinen, Thomas Mikolajewicz, Uwe Brovkin, Victor |
author_facet |
Kleinen, Thomas Mikolajewicz, Uwe Brovkin, Victor |
author_sort |
Kleinen, Thomas |
title |
Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period |
title_short |
Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period |
title_full |
Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period |
title_fullStr |
Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period |
title_full_unstemmed |
Terrestrial methane emissions from the Last Glacial Maximum to the preindustrial period |
title_sort |
terrestrial methane emissions from the last glacial maximum to the preindustrial period |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/cp-16-575-2020 https://noa.gwlb.de/receive/cop_mods_00051050 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050707/cp-16-575-2020.pdf https://cp.copernicus.org/articles/16/575/2020/cp-16-575-2020.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-16-575-2020 https://noa.gwlb.de/receive/cop_mods_00051050 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00050707/cp-16-575-2020.pdf https://cp.copernicus.org/articles/16/575/2020/cp-16-575-2020.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/cp-16-575-2020 |
container_title |
Climate of the Past |
container_volume |
16 |
container_issue |
2 |
container_start_page |
575 |
op_container_end_page |
595 |
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1766031381108883456 |