Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance
The Antarctic surface mass balance (SMB) has global climatic impacts through its effects on global sea-level rise. The forced increase in Antarctic SMB over the second half of the 20th century was argued to stem from multiple forcing agents, including ozone and ozone-depleting substances (ODSs). Her...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00054669 2024-09-15T17:40:54+00:00 Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance Chemke, Rei Previdi, Michael England, Mark R. Polvani, Lorenzo M. 2020-11 electronic https://doi.org/10.5194/tc-14-4135-2020 https://noa.gwlb.de/receive/cop_mods_00054669 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054320/tc-14-4135-2020.pdf https://tc.copernicus.org/articles/14/4135/2020/tc-14-4135-2020.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-4135-2020 https://noa.gwlb.de/receive/cop_mods_00054669 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054320/tc-14-4135-2020.pdf https://tc.copernicus.org/articles/14/4135/2020/tc-14-4135-2020.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2020 ftnonlinearchiv https://doi.org/10.5194/tc-14-4135-2020 2024-06-26T04:43:09Z The Antarctic surface mass balance (SMB) has global climatic impacts through its effects on global sea-level rise. The forced increase in Antarctic SMB over the second half of the 20th century was argued to stem from multiple forcing agents, including ozone and ozone-depleting substances (ODSs). Here we use ensembles of fixed-forcing model simulations to quantify and contrast the contributions of stratospheric ozone, tropospheric ozone and ODSs to increases in the Antarctic SMB. We show that ODSs and stratospheric ozone make comparable contributions and together account for 44 % of the increase in the annual mean Antarctic SMB over the second half of the 20th century. In contrast, tropospheric ozone has an insignificant impact on the SMB increase. A large portion of the annual mean SMB increase occurs during austral summer, when stratospheric ozone is found to account for 63 % of the increase. Furthermore, we demonstrate that stratospheric ozone increases the SMB by enhancing the meridional mean and eddy flows towards the continent, thus converging more water vapor over the Antarctic. Article in Journal/Newspaper Antarc* Antarctic The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 14 11 4135 4144 |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Chemke, Rei Previdi, Michael England, Mark R. Polvani, Lorenzo M. Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance |
topic_facet |
article Verlagsveröffentlichung |
description |
The Antarctic surface mass balance (SMB) has global climatic impacts through its effects on global sea-level rise. The forced increase in Antarctic SMB over the second half of the 20th century was argued to stem from multiple forcing agents, including ozone and ozone-depleting substances (ODSs). Here we use ensembles of fixed-forcing model simulations to quantify and contrast the contributions of stratospheric ozone, tropospheric ozone and ODSs to increases in the Antarctic SMB. We show that ODSs and stratospheric ozone make comparable contributions and together account for 44 % of the increase in the annual mean Antarctic SMB over the second half of the 20th century. In contrast, tropospheric ozone has an insignificant impact on the SMB increase. A large portion of the annual mean SMB increase occurs during austral summer, when stratospheric ozone is found to account for 63 % of the increase. Furthermore, we demonstrate that stratospheric ozone increases the SMB by enhancing the meridional mean and eddy flows towards the continent, thus converging more water vapor over the Antarctic. |
format |
Article in Journal/Newspaper |
author |
Chemke, Rei Previdi, Michael England, Mark R. Polvani, Lorenzo M. |
author_facet |
Chemke, Rei Previdi, Michael England, Mark R. Polvani, Lorenzo M. |
author_sort |
Chemke, Rei |
title |
Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance |
title_short |
Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance |
title_full |
Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance |
title_fullStr |
Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance |
title_full_unstemmed |
Distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in Antarctic surface mass balance |
title_sort |
distinguishing the impacts of ozone and ozone-depleting substances on the recent increase in antarctic surface mass balance |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-4135-2020 https://noa.gwlb.de/receive/cop_mods_00054669 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054320/tc-14-4135-2020.pdf https://tc.copernicus.org/articles/14/4135/2020/tc-14-4135-2020.pdf |
genre |
Antarc* Antarctic The Cryosphere |
genre_facet |
Antarc* Antarctic The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-4135-2020 https://noa.gwlb.de/receive/cop_mods_00054669 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054320/tc-14-4135-2020.pdf https://tc.copernicus.org/articles/14/4135/2020/tc-14-4135-2020.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-14-4135-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
11 |
container_start_page |
4135 |
op_container_end_page |
4144 |
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1810486968317902848 |