Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica
Trends of carbon monoxide (CO) for the past 100 years are reported as derived from Antarctic firn drilling expeditions. Only one of 3 campaigns provided high quality results. The trend was reconstructed using a firn air model in the forward mode to constrain age distributions and assuming the CO inc...
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European Geosciences Union
2007
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ftnerc:oai:nora.nerc.ac.uk:5444 2024-06-09T07:40:04+00:00 Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica Assonov, S.S. Brenninkmeijer, C.A.M. Jöckel, P. Mulvaney, R. Bernard, S. Chappellaz, J. 2007 text http://nora.nerc.ac.uk/id/eprint/5444/ https://nora.nerc.ac.uk/id/eprint/5444/1/acp-7-295-2007.pdf http://www.atmos-chem-phys.net/7/295/2007/acp-7-295-2007.html https://doi.org/10.5194/acp-7-295-2007 en eng European Geosciences Union https://nora.nerc.ac.uk/id/eprint/5444/1/acp-7-295-2007.pdf Assonov, S.S.; Brenninkmeijer, C.A.M.; Jöckel, P.; Mulvaney, R. orcid:0000-0002-5372-8148 Bernard, S.; Chappellaz, J. 2007 Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica. Atmospheric Chemistry and Physics, 7 (2). 295-308. https://doi.org/10.5194/acp-7-295-2007 <https://doi.org/10.5194/acp-7-295-2007> Glaciology Atmospheric Sciences Publication - Article PeerReviewed 2007 ftnerc https://doi.org/10.5194/acp-7-295-2007 2024-05-15T08:49:44Z Trends of carbon monoxide (CO) for the past 100 years are reported as derived from Antarctic firn drilling expeditions. Only one of 3 campaigns provided high quality results. The trend was reconstructed using a firn air model in the forward mode to constrain age distributions and assuming the CO increase to be proportional to its major source, namely CH4. The results suggest that CO has increased by ~38%, from 38±7 to 52.5±1.5 ppbv over a period of roughly 100 years. The concentrations are on the volumetric scale which corresponds to ~1.08 of the scale used by NOAA/CMDL. The estimated CO increase is somewhat larger than what is estimated from the CO budget estimations and the CH4 growth alone. The most likely explanation might be an increase in biomass burning emissions. Using CH3Cl as another proxy produces a very similar reconstruction. Article in Journal/Newspaper Antarc* Antarctic Antarctica Berkner Island Natural Environment Research Council: NERC Open Research Archive Antarctic Berkner Island ENVELOPE(-48.117,-48.117,-79.333,-79.333) Atmospheric Chemistry and Physics 7 2 295 308 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Glaciology Atmospheric Sciences |
spellingShingle |
Glaciology Atmospheric Sciences Assonov, S.S. Brenninkmeijer, C.A.M. Jöckel, P. Mulvaney, R. Bernard, S. Chappellaz, J. Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica |
topic_facet |
Glaciology Atmospheric Sciences |
description |
Trends of carbon monoxide (CO) for the past 100 years are reported as derived from Antarctic firn drilling expeditions. Only one of 3 campaigns provided high quality results. The trend was reconstructed using a firn air model in the forward mode to constrain age distributions and assuming the CO increase to be proportional to its major source, namely CH4. The results suggest that CO has increased by ~38%, from 38±7 to 52.5±1.5 ppbv over a period of roughly 100 years. The concentrations are on the volumetric scale which corresponds to ~1.08 of the scale used by NOAA/CMDL. The estimated CO increase is somewhat larger than what is estimated from the CO budget estimations and the CH4 growth alone. The most likely explanation might be an increase in biomass burning emissions. Using CH3Cl as another proxy produces a very similar reconstruction. |
format |
Article in Journal/Newspaper |
author |
Assonov, S.S. Brenninkmeijer, C.A.M. Jöckel, P. Mulvaney, R. Bernard, S. Chappellaz, J. |
author_facet |
Assonov, S.S. Brenninkmeijer, C.A.M. Jöckel, P. Mulvaney, R. Bernard, S. Chappellaz, J. |
author_sort |
Assonov, S.S. |
title |
Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica |
title_short |
Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica |
title_full |
Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica |
title_fullStr |
Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica |
title_full_unstemmed |
Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica |
title_sort |
evidence for a co increase in the sh during the 20th century based on firn air samples from berkner island, antarctica |
publisher |
European Geosciences Union |
publishDate |
2007 |
url |
http://nora.nerc.ac.uk/id/eprint/5444/ https://nora.nerc.ac.uk/id/eprint/5444/1/acp-7-295-2007.pdf http://www.atmos-chem-phys.net/7/295/2007/acp-7-295-2007.html https://doi.org/10.5194/acp-7-295-2007 |
long_lat |
ENVELOPE(-48.117,-48.117,-79.333,-79.333) |
geographic |
Antarctic Berkner Island |
geographic_facet |
Antarctic Berkner Island |
genre |
Antarc* Antarctic Antarctica Berkner Island |
genre_facet |
Antarc* Antarctic Antarctica Berkner Island |
op_relation |
https://nora.nerc.ac.uk/id/eprint/5444/1/acp-7-295-2007.pdf Assonov, S.S.; Brenninkmeijer, C.A.M.; Jöckel, P.; Mulvaney, R. orcid:0000-0002-5372-8148 Bernard, S.; Chappellaz, J. 2007 Evidence for a CO increase in the SH during the 20th century based on firn air samples from Berkner Island, Antarctica. Atmospheric Chemistry and Physics, 7 (2). 295-308. https://doi.org/10.5194/acp-7-295-2007 <https://doi.org/10.5194/acp-7-295-2007> |
op_doi |
https://doi.org/10.5194/acp-7-295-2007 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
7 |
container_issue |
2 |
container_start_page |
295 |
op_container_end_page |
308 |
_version_ |
1801383570310168576 |