Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean
Fossil fuel use, cement manufacture and land-use changes are the primary sources of anthropogenic carbon dioxide (CO 2 ) to the atmosphere, with the ocean absorbing approximately 30% (Sabine et al., 2004). Ocean uptake and chemical equilibration of anthropogenic CO 2 with seawater results in a gradu...
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ftdoajarticles:oai:doaj.org/article:f4e4ee5b076549bab669ffcf2273a990 2023-05-15T17:28:01+02:00 Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean N. R. Bates M. H. P. Best K. Neely R. Garley A. G. Dickson R. J. Johnson 2012-07-01T00:00:00Z https://doi.org/10.5194/bg-9-2509-2012 https://doaj.org/article/f4e4ee5b076549bab669ffcf2273a990 EN eng Copernicus Publications http://www.biogeosciences.net/9/2509/2012/bg-9-2509-2012.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-9-2509-2012 1726-4170 1726-4189 https://doaj.org/article/f4e4ee5b076549bab669ffcf2273a990 Biogeosciences, Vol 9, Iss 7, Pp 2509-2522 (2012) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2012 ftdoajarticles https://doi.org/10.5194/bg-9-2509-2012 2022-12-31T00:46:49Z Fossil fuel use, cement manufacture and land-use changes are the primary sources of anthropogenic carbon dioxide (CO 2 ) to the atmosphere, with the ocean absorbing approximately 30% (Sabine et al., 2004). Ocean uptake and chemical equilibration of anthropogenic CO 2 with seawater results in a gradual reduction in seawater pH and saturation states (Ω) for calcium carbonate (CaCO 3 ) minerals in a process termed ocean acidification. Assessing the present and future impact of ocean acidification on marine ecosystems requires detection of the multi-decadal rate of change across ocean basins and at ocean time-series sites. Here, we show the longest continuous record of ocean CO 2 changes and ocean acidification in the North Atlantic subtropical gyre near Bermuda from 1983–2011. Dissolved inorganic carbon (DIC) and partial pressure of CO 2 ( p CO 2 ) increased in surface seawater by ~40 μmol kg −1 and ~50 μatm (~20%), respectively. Increasing Revelle factor ( β ) values imply that the capacity of North Atlantic surface waters to absorb CO 2 has also diminished. As indicators of ocean acidification, seawater pH decreased by ~0.05 (0.0017 yr −1 ) and ω values by ~7–8%. Such data provide critically needed multi-decadal information for assessing the North Atlantic Ocean CO 2 sink and the pH changes that determine marine ecosystem responses to ocean acidification. Article in Journal/Newspaper North Atlantic Ocean acidification Directory of Open Access Journals: DOAJ Articles Biogeosciences 9 7 2509 2522 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
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Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 N. R. Bates M. H. P. Best K. Neely R. Garley A. G. Dickson R. J. Johnson Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Fossil fuel use, cement manufacture and land-use changes are the primary sources of anthropogenic carbon dioxide (CO 2 ) to the atmosphere, with the ocean absorbing approximately 30% (Sabine et al., 2004). Ocean uptake and chemical equilibration of anthropogenic CO 2 with seawater results in a gradual reduction in seawater pH and saturation states (Ω) for calcium carbonate (CaCO 3 ) minerals in a process termed ocean acidification. Assessing the present and future impact of ocean acidification on marine ecosystems requires detection of the multi-decadal rate of change across ocean basins and at ocean time-series sites. Here, we show the longest continuous record of ocean CO 2 changes and ocean acidification in the North Atlantic subtropical gyre near Bermuda from 1983–2011. Dissolved inorganic carbon (DIC) and partial pressure of CO 2 ( p CO 2 ) increased in surface seawater by ~40 μmol kg −1 and ~50 μatm (~20%), respectively. Increasing Revelle factor ( β ) values imply that the capacity of North Atlantic surface waters to absorb CO 2 has also diminished. As indicators of ocean acidification, seawater pH decreased by ~0.05 (0.0017 yr −1 ) and ω values by ~7–8%. Such data provide critically needed multi-decadal information for assessing the North Atlantic Ocean CO 2 sink and the pH changes that determine marine ecosystem responses to ocean acidification. |
format |
Article in Journal/Newspaper |
author |
N. R. Bates M. H. P. Best K. Neely R. Garley A. G. Dickson R. J. Johnson |
author_facet |
N. R. Bates M. H. P. Best K. Neely R. Garley A. G. Dickson R. J. Johnson |
author_sort |
N. R. Bates |
title |
Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean |
title_short |
Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean |
title_full |
Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean |
title_fullStr |
Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean |
title_full_unstemmed |
Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean |
title_sort |
detecting anthropogenic carbon dioxide uptake and ocean acidification in the north atlantic ocean |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/bg-9-2509-2012 https://doaj.org/article/f4e4ee5b076549bab669ffcf2273a990 |
genre |
North Atlantic Ocean acidification |
genre_facet |
North Atlantic Ocean acidification |
op_source |
Biogeosciences, Vol 9, Iss 7, Pp 2509-2522 (2012) |
op_relation |
http://www.biogeosciences.net/9/2509/2012/bg-9-2509-2012.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-9-2509-2012 1726-4170 1726-4189 https://doaj.org/article/f4e4ee5b076549bab669ffcf2273a990 |
op_doi |
https://doi.org/10.5194/bg-9-2509-2012 |
container_title |
Biogeosciences |
container_volume |
9 |
container_issue |
7 |
container_start_page |
2509 |
op_container_end_page |
2522 |
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1766120458519838720 |