Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers
We compare estimates of the anthropogenic CO2 content of seawater samples from the subpolar North Atlantic Ocean calculated on the basis of a back-calculation technique with measurements of the chlorofluorocarbon CFC-11. Estimated anthropogenic CO2 concentrations are in the range 10–80 µmol kg-1, wh...
Published in: | Geophysical Research Letters |
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Language: | English |
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AGU (American Geophysical Union)
1999
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Online Access: | https://oceanrep.geomar.de/id/eprint/4413/ https://oceanrep.geomar.de/id/eprint/4413/1/K-rtzinger_et_al-1999-Geophysical_Research_Letters.pdf https://doi.org/10.1029/1999GL900432 |
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ftoceanrep:oai:oceanrep.geomar.de:4413 2023-05-15T17:28:06+02:00 Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers Körtzinger, Arne Rhein, Monika Mintrop, Ludger 1999 text https://oceanrep.geomar.de/id/eprint/4413/ https://oceanrep.geomar.de/id/eprint/4413/1/K-rtzinger_et_al-1999-Geophysical_Research_Letters.pdf https://doi.org/10.1029/1999GL900432 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/4413/1/K-rtzinger_et_al-1999-Geophysical_Research_Letters.pdf Körtzinger, A. , Rhein, M. and Mintrop, L. (1999) Anthropogenic CO2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers. Open Access Geophysical Research Letters, 26 . pp. 2065-2068. DOI 10.1029/1999GL900432 <https://doi.org/10.1029/1999GL900432>. doi:10.1029/1999GL900432 info:eu-repo/semantics/openAccess Article PeerReviewed 1999 ftoceanrep https://doi.org/10.1029/1999GL900432 2023-04-07T14:49:31Z We compare estimates of the anthropogenic CO2 content of seawater samples from the subpolar North Atlantic Ocean calculated on the basis of a back-calculation technique with measurements of the chlorofluorocarbon CFC-11. Estimated anthropogenic CO2 concentrations are in the range 10–80 µmol kg-1, while CFC-11 concentrations cover the full range from below detection limit to > 5 pmol kg-1 in waters at atmospheric equilibrium. The majority of the data points show a linear correlation between anthropogenic CO2 concentrations and CFC-11 saturation, which can only be explained by the strongly advective nature of the North Atlantic Ocean. Only deep eastern basin samples deviate from this general observation in that they show still significant concentrations of anthropogenic CO2 where CFC-11 is no longer detectable. In order to remove the influence of the Revelle factor reflected in the anthropogenic CO2 concentrations we have calculated 'excess' pCO2, showing an even tighter linear correlation with atmospheric equilibrium concentrations of CFC-11. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Geophysical Research Letters 26 14 2065 2068 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
We compare estimates of the anthropogenic CO2 content of seawater samples from the subpolar North Atlantic Ocean calculated on the basis of a back-calculation technique with measurements of the chlorofluorocarbon CFC-11. Estimated anthropogenic CO2 concentrations are in the range 10–80 µmol kg-1, while CFC-11 concentrations cover the full range from below detection limit to > 5 pmol kg-1 in waters at atmospheric equilibrium. The majority of the data points show a linear correlation between anthropogenic CO2 concentrations and CFC-11 saturation, which can only be explained by the strongly advective nature of the North Atlantic Ocean. Only deep eastern basin samples deviate from this general observation in that they show still significant concentrations of anthropogenic CO2 where CFC-11 is no longer detectable. In order to remove the influence of the Revelle factor reflected in the anthropogenic CO2 concentrations we have calculated 'excess' pCO2, showing an even tighter linear correlation with atmospheric equilibrium concentrations of CFC-11. |
format |
Article in Journal/Newspaper |
author |
Körtzinger, Arne Rhein, Monika Mintrop, Ludger |
spellingShingle |
Körtzinger, Arne Rhein, Monika Mintrop, Ludger Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers |
author_facet |
Körtzinger, Arne Rhein, Monika Mintrop, Ludger |
author_sort |
Körtzinger, Arne |
title |
Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers |
title_short |
Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers |
title_full |
Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers |
title_fullStr |
Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers |
title_full_unstemmed |
Anthropogenic CO 2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers |
title_sort |
anthropogenic co 2 and cfcs in the north atlantic ocean - a comparison of man-made tracers |
publisher |
AGU (American Geophysical Union) |
publishDate |
1999 |
url |
https://oceanrep.geomar.de/id/eprint/4413/ https://oceanrep.geomar.de/id/eprint/4413/1/K-rtzinger_et_al-1999-Geophysical_Research_Letters.pdf https://doi.org/10.1029/1999GL900432 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/4413/1/K-rtzinger_et_al-1999-Geophysical_Research_Letters.pdf Körtzinger, A. , Rhein, M. and Mintrop, L. (1999) Anthropogenic CO2 and CFCs in the North Atlantic Ocean - a comparison of man-made tracers. Open Access Geophysical Research Letters, 26 . pp. 2065-2068. DOI 10.1029/1999GL900432 <https://doi.org/10.1029/1999GL900432>. doi:10.1029/1999GL900432 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/1999GL900432 |
container_title |
Geophysical Research Letters |
container_volume |
26 |
container_issue |
14 |
container_start_page |
2065 |
op_container_end_page |
2068 |
_version_ |
1766120567212081152 |