Heterogeneity of impacts of high CO2 on the North Western European shelf
The increase in atmospheric CO2 is a dual threat to the marine environment: from one side it drives climate change, leading to modifications in water temperature, circulation patterns and stratification intensity; on the other side it causes a decrease in marine pH (ocean acidification, or OA) due t...
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Online Access: | http://hdl.handle.net/11250/226307 https://doi.org/10.5194/bg-11-601-2014 |
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ftnorskinstvf:oai:niva.brage.unit.no:11250/226307 2023-05-15T17:51:55+02:00 Heterogeneity of impacts of high CO2 on the North Western European shelf Artioli, Yuri Blackford, Jerry C. Nondal, Gisle Bellerby, Richard Wakelin, Sarah L. Holt, Jason T. Butenschön, Momme Allen, Julian Icarus 2014-11-19T09:06:23Z application/pdf http://hdl.handle.net/11250/226307 https://doi.org/10.5194/bg-11-601-2014 eng eng European Geosciences Union http://www.biogeosciences.net/11/601/2014/bg-11-601-2014.pdf EPOCA: 211384 EC/FP7: MEECE 212085 ROAM: NE/H017372/1 Artioli, Y. et al., 2014. Heterogeneity of impacts of high CO2 on the North Western European shelf. Biogeosciences 11(3) 601-612. urn:issn:1726-4170 http://hdl.handle.net/11250/226307 https://doi.org/10.5194/bg-11-601-2014 cristin:1160577 CC Attribution 3.0 License https://creativecommons.org/licenses/by/3.0/ http://www.biogeosciences.net/general_information/license_and_copyright.html The authors CC-BY Biogeosciences VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452 Journal article Peer reviewed 2014 ftnorskinstvf https://doi.org/10.5194/bg-11-601-2014 2023-02-21T08:45:12Z The increase in atmospheric CO2 is a dual threat to the marine environment: from one side it drives climate change, leading to modifications in water temperature, circulation patterns and stratification intensity; on the other side it causes a decrease in marine pH (ocean acidification, or OA) due to the increase in dissolved CO2. Assessing the com- bined impact of climate change and OA on marine ecosystems is a challenging task. The response of the ecosystem to a single driver can be highly variable and remains still uncertain; additionally the interaction between these can be either synergistic or antagonistic. In this work we use the coupled oceanographic–ecosystem model POLCOMS-ERSEM driven by climate forcing to study the interaction between climate change and OA. We focus in particular on carbonate chemistry, primary and secondary production. The model has been run in three different configurations in order to assess separately the impacts of climate change on net primary production and of OA on the carbonate chemistry, which have been strongly supported by scientific literature, from the impact of biological feedbacks of OA on the ecosystem, whose uncertainty still has to be well constrained. The global mean of the projected decrease of pH at the end of the century is about 0.27 pH units, but the model shows significant interaction among the drivers and high variability in the temporal and spatial response. As a result of this high variability, critical tipping point can be locally and/or temporally reached: e.g. undersaturation with respect to aragonite is projected to occur in the deeper part of the central North Sea during sum- mer. Impacts of climate change and of OA on primary and secondary production may have similar magnitude, compensating in some area and exacerbating in others. Article in Journal/Newspaper Ocean acidification Norwegian Institute for Water research: NIVA Open Access Archive (Brage) Biogeosciences 11 3 601 612 |
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Open Polar |
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Norwegian Institute for Water research: NIVA Open Access Archive (Brage) |
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ftnorskinstvf |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452 |
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VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452 Artioli, Yuri Blackford, Jerry C. Nondal, Gisle Bellerby, Richard Wakelin, Sarah L. Holt, Jason T. Butenschön, Momme Allen, Julian Icarus Heterogeneity of impacts of high CO2 on the North Western European shelf |
topic_facet |
VDP::Matematikk og naturvitenskap: 400::Geofag: 450::Oseanografi: 452 |
description |
The increase in atmospheric CO2 is a dual threat to the marine environment: from one side it drives climate change, leading to modifications in water temperature, circulation patterns and stratification intensity; on the other side it causes a decrease in marine pH (ocean acidification, or OA) due to the increase in dissolved CO2. Assessing the com- bined impact of climate change and OA on marine ecosystems is a challenging task. The response of the ecosystem to a single driver can be highly variable and remains still uncertain; additionally the interaction between these can be either synergistic or antagonistic. In this work we use the coupled oceanographic–ecosystem model POLCOMS-ERSEM driven by climate forcing to study the interaction between climate change and OA. We focus in particular on carbonate chemistry, primary and secondary production. The model has been run in three different configurations in order to assess separately the impacts of climate change on net primary production and of OA on the carbonate chemistry, which have been strongly supported by scientific literature, from the impact of biological feedbacks of OA on the ecosystem, whose uncertainty still has to be well constrained. The global mean of the projected decrease of pH at the end of the century is about 0.27 pH units, but the model shows significant interaction among the drivers and high variability in the temporal and spatial response. As a result of this high variability, critical tipping point can be locally and/or temporally reached: e.g. undersaturation with respect to aragonite is projected to occur in the deeper part of the central North Sea during sum- mer. Impacts of climate change and of OA on primary and secondary production may have similar magnitude, compensating in some area and exacerbating in others. |
format |
Article in Journal/Newspaper |
author |
Artioli, Yuri Blackford, Jerry C. Nondal, Gisle Bellerby, Richard Wakelin, Sarah L. Holt, Jason T. Butenschön, Momme Allen, Julian Icarus |
author_facet |
Artioli, Yuri Blackford, Jerry C. Nondal, Gisle Bellerby, Richard Wakelin, Sarah L. Holt, Jason T. Butenschön, Momme Allen, Julian Icarus |
author_sort |
Artioli, Yuri |
title |
Heterogeneity of impacts of high CO2 on the North Western European shelf |
title_short |
Heterogeneity of impacts of high CO2 on the North Western European shelf |
title_full |
Heterogeneity of impacts of high CO2 on the North Western European shelf |
title_fullStr |
Heterogeneity of impacts of high CO2 on the North Western European shelf |
title_full_unstemmed |
Heterogeneity of impacts of high CO2 on the North Western European shelf |
title_sort |
heterogeneity of impacts of high co2 on the north western european shelf |
publisher |
European Geosciences Union |
publishDate |
2014 |
url |
http://hdl.handle.net/11250/226307 https://doi.org/10.5194/bg-11-601-2014 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Biogeosciences |
op_relation |
http://www.biogeosciences.net/11/601/2014/bg-11-601-2014.pdf EPOCA: 211384 EC/FP7: MEECE 212085 ROAM: NE/H017372/1 Artioli, Y. et al., 2014. Heterogeneity of impacts of high CO2 on the North Western European shelf. Biogeosciences 11(3) 601-612. urn:issn:1726-4170 http://hdl.handle.net/11250/226307 https://doi.org/10.5194/bg-11-601-2014 cristin:1160577 |
op_rights |
CC Attribution 3.0 License https://creativecommons.org/licenses/by/3.0/ http://www.biogeosciences.net/general_information/license_and_copyright.html The authors |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-11-601-2014 |
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Biogeosciences |
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11 |
container_issue |
3 |
container_start_page |
601 |
op_container_end_page |
612 |
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1766159209256189952 |