The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget
We present a 60-year record of the stable isotopes of atmospheric carbon monoxide (CO) from firn air samples collected under the framework of the North Greenland Eemian Ice Drilling (NEEM) project. CO concentration, δ 13 C, and δ 18 O of CO were measured by gas chromatography/isotope ratio mass spec...
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ftdoajarticles:oai:doaj.org/article:e495c2f8a66947ca98cfafb6f831c734 2023-05-15T16:29:57+02:00 The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget Z. Wang J. Chappellaz P. Martinerie K. Park V. Petrenko E. Witrant L. K. Emmons T. Blunier C. A. M. Brenninkmeijer J. E. Mak 2012-05-01T00:00:00Z https://doi.org/10.5194/acp-12-4365-2012 https://doaj.org/article/e495c2f8a66947ca98cfafb6f831c734 EN eng Copernicus Publications http://www.atmos-chem-phys.net/12/4365/2012/acp-12-4365-2012.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-12-4365-2012 1680-7316 1680-7324 https://doaj.org/article/e495c2f8a66947ca98cfafb6f831c734 Atmospheric Chemistry and Physics, Vol 12, Iss 10, Pp 4365-4377 (2012) Physics QC1-999 Chemistry QD1-999 article 2012 ftdoajarticles https://doi.org/10.5194/acp-12-4365-2012 2022-12-30T23:40:29Z We present a 60-year record of the stable isotopes of atmospheric carbon monoxide (CO) from firn air samples collected under the framework of the North Greenland Eemian Ice Drilling (NEEM) project. CO concentration, δ 13 C, and δ 18 O of CO were measured by gas chromatography/isotope ratio mass spectrometry (gc-IRMS) from trapped gases in the firn. We applied LGGE-GIPSA firn air models (Witrant et al., 2011) to correlate gas age with firn air depth and then reconstructed the trend of atmospheric CO and its stable isotopic composition at high northern latitudes since 1950. The most probable firn air model scenarios show that δ 13 C decreased slightly from −25.8‰ in 1950 to −26.4‰ in 2000, then decreased more significantly to −27.2‰ in 2008. δ 18 O decreased more regularly from 9.8‰ in 1950 to 7.1‰ in 2008. Those same scenarios show CO concentration increased gradually from 1950 and peaked in the late 1970s, followed by a gradual decrease to present day values (Petrenko et al., 2012). Results from an isotope mass balance model indicate that a slight increase, followed by a large reduction, in CO derived from fossil fuel combustion has occurred since 1950. The reduction of CO emission from fossil fuel combustion after the mid-1970s is the most plausible mechanism for the drop of CO concentration during this time. Fossil fuel CO emissions decreased as a result of the implementation of catalytic converters and the relative growth of diesel engines, in spite of the global vehicle fleet size having grown several fold over the same time period. Article in Journal/Newspaper Greenland North Greenland Directory of Open Access Journals: DOAJ Articles Greenland Atmospheric Chemistry and Physics 12 10 4365 4377 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 Z. Wang J. Chappellaz P. Martinerie K. Park V. Petrenko E. Witrant L. K. Emmons T. Blunier C. A. M. Brenninkmeijer J. E. Mak The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
We present a 60-year record of the stable isotopes of atmospheric carbon monoxide (CO) from firn air samples collected under the framework of the North Greenland Eemian Ice Drilling (NEEM) project. CO concentration, δ 13 C, and δ 18 O of CO were measured by gas chromatography/isotope ratio mass spectrometry (gc-IRMS) from trapped gases in the firn. We applied LGGE-GIPSA firn air models (Witrant et al., 2011) to correlate gas age with firn air depth and then reconstructed the trend of atmospheric CO and its stable isotopic composition at high northern latitudes since 1950. The most probable firn air model scenarios show that δ 13 C decreased slightly from −25.8‰ in 1950 to −26.4‰ in 2000, then decreased more significantly to −27.2‰ in 2008. δ 18 O decreased more regularly from 9.8‰ in 1950 to 7.1‰ in 2008. Those same scenarios show CO concentration increased gradually from 1950 and peaked in the late 1970s, followed by a gradual decrease to present day values (Petrenko et al., 2012). Results from an isotope mass balance model indicate that a slight increase, followed by a large reduction, in CO derived from fossil fuel combustion has occurred since 1950. The reduction of CO emission from fossil fuel combustion after the mid-1970s is the most plausible mechanism for the drop of CO concentration during this time. Fossil fuel CO emissions decreased as a result of the implementation of catalytic converters and the relative growth of diesel engines, in spite of the global vehicle fleet size having grown several fold over the same time period. |
format |
Article in Journal/Newspaper |
author |
Z. Wang J. Chappellaz P. Martinerie K. Park V. Petrenko E. Witrant L. K. Emmons T. Blunier C. A. M. Brenninkmeijer J. E. Mak |
author_facet |
Z. Wang J. Chappellaz P. Martinerie K. Park V. Petrenko E. Witrant L. K. Emmons T. Blunier C. A. M. Brenninkmeijer J. E. Mak |
author_sort |
Z. Wang |
title |
The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget |
title_short |
The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget |
title_full |
The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget |
title_fullStr |
The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget |
title_full_unstemmed |
The isotopic record of Northern Hemisphere atmospheric carbon monoxide since 1950: implications for the CO budget |
title_sort |
isotopic record of northern hemisphere atmospheric carbon monoxide since 1950: implications for the co budget |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/acp-12-4365-2012 https://doaj.org/article/e495c2f8a66947ca98cfafb6f831c734 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_source |
Atmospheric Chemistry and Physics, Vol 12, Iss 10, Pp 4365-4377 (2012) |
op_relation |
http://www.atmos-chem-phys.net/12/4365/2012/acp-12-4365-2012.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-12-4365-2012 1680-7316 1680-7324 https://doaj.org/article/e495c2f8a66947ca98cfafb6f831c734 |
op_doi |
https://doi.org/10.5194/acp-12-4365-2012 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
12 |
container_issue |
10 |
container_start_page |
4365 |
op_container_end_page |
4377 |
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1766019667105677312 |