Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period
Carbonyl sulfide (COS) is the most abundant sulfur gas in the atmosphere with links to terrestrial and oceanic productivity. We measured COS in ice core air from an intermediate-depth ice core from the South Pole using both dry and wet extraction methods, recovering a 52 500-year record. We find evi...
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ftdoajarticles:oai:doaj.org/article:ea8853c1aa8647a8896d114c18108895 2024-09-15T18:11:54+00:00 Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period M. Aydin M. R. Nicewonger G. L. Britten D. Winski M. Whelan J. D. Patterson E. Osterberg C. F. Lee T. Harder K. J. Callahan D. Ferris E. S. Saltzman 2024-08-01T00:00:00Z https://doi.org/10.5194/cp-20-1885-2024 https://doaj.org/article/ea8853c1aa8647a8896d114c18108895 EN eng Copernicus Publications https://cp.copernicus.org/articles/20/1885/2024/cp-20-1885-2024.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-20-1885-2024 1814-9324 1814-9332 https://doaj.org/article/ea8853c1aa8647a8896d114c18108895 Climate of the Past, Vol 20, Pp 1885-1917 (2024) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2024 ftdoajarticles https://doi.org/10.5194/cp-20-1885-2024 2024-09-02T15:34:37Z Carbonyl sulfide (COS) is the most abundant sulfur gas in the atmosphere with links to terrestrial and oceanic productivity. We measured COS in ice core air from an intermediate-depth ice core from the South Pole using both dry and wet extraction methods, recovering a 52 500-year record. We find evidence for COS production in the firn, altering the atmospheric signal preserved in the ice core. Mean sea salt aerosol concentrations from the same depth are a good proxy for the COS production, which disproportionately impacts the measurements from glacial period ice with high sea salt aerosol concentrations. The COS measurements are corrected using sea salt sodium (ssNa) as a proxy for the excess COS resulting from the production. The ssNa-corrected COS record displays substantially less COS in the glacial period atmosphere than the Holocene and a 2 to 4-fold COS rise during the deglaciation synchronous with the associated climate signal. The deglacial COS rise was primarily source driven. Oceanic emissions in the form of COS, carbon disulfide ( CS 2 ), and dimethylsulfide (DMS) are collectively the largest natural source of atmospheric COS. A large increase in ocean COS emissions during the deglaciation suggests enhancements in emissions of ocean sulfur gases via processes that involve ocean productivity, although we cannot quantify individual contributions from each gas. Article in Journal/Newspaper ice core South pole Directory of Open Access Journals: DOAJ Articles Climate of the Past 20 8 1885 1917 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 M. Aydin M. R. Nicewonger G. L. Britten D. Winski M. Whelan J. D. Patterson E. Osterberg C. F. Lee T. Harder K. J. Callahan D. Ferris E. S. Saltzman Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
Carbonyl sulfide (COS) is the most abundant sulfur gas in the atmosphere with links to terrestrial and oceanic productivity. We measured COS in ice core air from an intermediate-depth ice core from the South Pole using both dry and wet extraction methods, recovering a 52 500-year record. We find evidence for COS production in the firn, altering the atmospheric signal preserved in the ice core. Mean sea salt aerosol concentrations from the same depth are a good proxy for the COS production, which disproportionately impacts the measurements from glacial period ice with high sea salt aerosol concentrations. The COS measurements are corrected using sea salt sodium (ssNa) as a proxy for the excess COS resulting from the production. The ssNa-corrected COS record displays substantially less COS in the glacial period atmosphere than the Holocene and a 2 to 4-fold COS rise during the deglaciation synchronous with the associated climate signal. The deglacial COS rise was primarily source driven. Oceanic emissions in the form of COS, carbon disulfide ( CS 2 ), and dimethylsulfide (DMS) are collectively the largest natural source of atmospheric COS. A large increase in ocean COS emissions during the deglaciation suggests enhancements in emissions of ocean sulfur gases via processes that involve ocean productivity, although we cannot quantify individual contributions from each gas. |
format |
Article in Journal/Newspaper |
author |
M. Aydin M. R. Nicewonger G. L. Britten D. Winski M. Whelan J. D. Patterson E. Osterberg C. F. Lee T. Harder K. J. Callahan D. Ferris E. S. Saltzman |
author_facet |
M. Aydin M. R. Nicewonger G. L. Britten D. Winski M. Whelan J. D. Patterson E. Osterberg C. F. Lee T. Harder K. J. Callahan D. Ferris E. S. Saltzman |
author_sort |
M. Aydin |
title |
Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period |
title_short |
Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period |
title_full |
Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period |
title_fullStr |
Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period |
title_full_unstemmed |
Carbonyl sulfide measurements from a South Pole ice core and implications for atmospheric variability since the last glacial period |
title_sort |
carbonyl sulfide measurements from a south pole ice core and implications for atmospheric variability since the last glacial period |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/cp-20-1885-2024 https://doaj.org/article/ea8853c1aa8647a8896d114c18108895 |
genre |
ice core South pole |
genre_facet |
ice core South pole |
op_source |
Climate of the Past, Vol 20, Pp 1885-1917 (2024) |
op_relation |
https://cp.copernicus.org/articles/20/1885/2024/cp-20-1885-2024.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-20-1885-2024 1814-9324 1814-9332 https://doaj.org/article/ea8853c1aa8647a8896d114c18108895 |
op_doi |
https://doi.org/10.5194/cp-20-1885-2024 |
container_title |
Climate of the Past |
container_volume |
20 |
container_issue |
8 |
container_start_page |
1885 |
op_container_end_page |
1917 |
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1810449477525307392 |