Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015
International audience For continental shelf regions, the long‐term trend in sea surface carbon dioxide (CO$_2$) partial pressure (pCO$_2$) and rates of ocean acidification are not accurately known. Here, we investigate the decadal trend of observed wintertime pCO$_2$ as well as computed wintertime...
Published in: | Journal of Geophysical Research: Biogeosciences |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Online Access: | https://hal.science/hal-02379030 https://hal.science/hal-02379030/document https://hal.science/hal-02379030/file/2018JG004992.pdf https://doi.org/10.1029/2018JG004992 |
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English |
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[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU]Sciences of the Universe [physics] |
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[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU]Sciences of the Universe [physics] Omar, Abdirahman M. Thomas, H. Olsen, Are Becker, Meike Skjelvan, Ingunn Reverdin, Gilles Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 |
topic_facet |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU]Sciences of the Universe [physics] |
description |
International audience For continental shelf regions, the long‐term trend in sea surface carbon dioxide (CO$_2$) partial pressure (pCO$_2$) and rates of ocean acidification are not accurately known. Here, we investigate the decadal trend of observed wintertime pCO$_2$ as well as computed wintertime pH and aragonite saturation state (Ω$_{ar}$) in the northern North Sea, using the first decade long monthly underway data from a voluntary observing ship covering the period 2004–2015. We also evaluate how seawater CO$_2$ chemistry, in response to physical and biological processes, drives variations in the above parameters on seasonal and interannual timescales. In the northern North Sea, pCO2, pH, and Ωar are subject to strong seasonal variations with mean wintertime values of 375 ± 11 μatm, 8.17 ± 0.01, and 1.96 ± 0.05. Dissolved inorganic carbon is found to be the primary driver of both seasonal and interannual changes while total alkalinity and sea surface temperature have secondary effects that reduce the changes produced by dissolved inorganic carbon. Average interannual variations during winter are around 3%, 0.1%, and 2% for $p$CO$_2$, pH, and Ω$_{ar}$, respectively and slightly larger in the eastern part of the study area (Skagerrak region) than in the western part (North Atlantic Water region). Statistically significant long‐term trends were found only in the North Atlantic Water region with mean annual rates of 2.39 ± 0.58 μatm/year, −0.0024 ± 0.001 year$^{‐1}$, and −0.010 ± 0.003 year‐1 for pCO$_2$, pH, and Ω$_{ar}$, respectively. The drivers of the observed trends as well as reasons for the lack of statistically significant trends in the Skagerrak region are discussed. |
author2 |
Bjerknes Centre for Climate Research (BCCR) Department of Biological Sciences Bergen (BIO / UiB) University of Bergen (UiB)-University of Bergen (UiB) Institute of Coastal Research Department of Aquatic Resources Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU)-Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) European Project: 654462,H2020,H2020-LCE-2015-1-two-stage,STEMM-CCS(2016) |
format |
Article in Journal/Newspaper |
author |
Omar, Abdirahman M. Thomas, H. Olsen, Are Becker, Meike Skjelvan, Ingunn Reverdin, Gilles |
author_facet |
Omar, Abdirahman M. Thomas, H. Olsen, Are Becker, Meike Skjelvan, Ingunn Reverdin, Gilles |
author_sort |
Omar, Abdirahman M. |
title |
Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 |
title_short |
Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 |
title_full |
Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 |
title_fullStr |
Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 |
title_full_unstemmed |
Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 |
title_sort |
trends of ocean acidification and p co 2 in the northern north sea, 2003–2015 |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02379030 https://hal.science/hal-02379030/document https://hal.science/hal-02379030/file/2018JG004992.pdf https://doi.org/10.1029/2018JG004992 |
genre |
North Atlantic Ocean acidification |
genre_facet |
North Atlantic Ocean acidification |
op_source |
ISSN: 2169-8953 Journal of Geophysical Research: Biogeosciences https://hal.science/hal-02379030 Journal of Geophysical Research: Biogeosciences, 2019, 124 (10), pp.3088-3103. ⟨10.1029/2018JG004992⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JG004992 info:eu-repo/grantAgreement//654462/EU/Strategies for Environmental Monitoring of Marine Carbon Capture and Storage/STEMM-CCS hal-02379030 https://hal.science/hal-02379030 https://hal.science/hal-02379030/document https://hal.science/hal-02379030/file/2018JG004992.pdf doi:10.1029/2018JG004992 WOS: 000493032400001 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018JG004992 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
124 |
container_issue |
10 |
container_start_page |
3088 |
op_container_end_page |
3103 |
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spelling |
ftuniparissaclay:oai:HAL:hal-02379030v1 2024-05-19T07:44:55+00:00 Trends of ocean acidification and p CO 2 in the Northern North Sea, 2003–2015 Omar, Abdirahman M. Thomas, H. Olsen, Are Becker, Meike Skjelvan, Ingunn Reverdin, Gilles Bjerknes Centre for Climate Research (BCCR) Department of Biological Sciences Bergen (BIO / UiB) University of Bergen (UiB)-University of Bergen (UiB) Institute of Coastal Research Department of Aquatic Resources Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU)-Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet (SLU) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) European Project: 654462,H2020,H2020-LCE-2015-1-two-stage,STEMM-CCS(2016) 2019-10-09 https://hal.science/hal-02379030 https://hal.science/hal-02379030/document https://hal.science/hal-02379030/file/2018JG004992.pdf https://doi.org/10.1029/2018JG004992 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JG004992 info:eu-repo/grantAgreement//654462/EU/Strategies for Environmental Monitoring of Marine Carbon Capture and Storage/STEMM-CCS hal-02379030 https://hal.science/hal-02379030 https://hal.science/hal-02379030/document https://hal.science/hal-02379030/file/2018JG004992.pdf doi:10.1029/2018JG004992 WOS: 000493032400001 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 2169-8953 Journal of Geophysical Research: Biogeosciences https://hal.science/hal-02379030 Journal of Geophysical Research: Biogeosciences, 2019, 124 (10), pp.3088-3103. ⟨10.1029/2018JG004992⟩ [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2019 ftuniparissaclay https://doi.org/10.1029/2018JG004992 2024-04-22T17:33:49Z International audience For continental shelf regions, the long‐term trend in sea surface carbon dioxide (CO$_2$) partial pressure (pCO$_2$) and rates of ocean acidification are not accurately known. Here, we investigate the decadal trend of observed wintertime pCO$_2$ as well as computed wintertime pH and aragonite saturation state (Ω$_{ar}$) in the northern North Sea, using the first decade long monthly underway data from a voluntary observing ship covering the period 2004–2015. We also evaluate how seawater CO$_2$ chemistry, in response to physical and biological processes, drives variations in the above parameters on seasonal and interannual timescales. In the northern North Sea, pCO2, pH, and Ωar are subject to strong seasonal variations with mean wintertime values of 375 ± 11 μatm, 8.17 ± 0.01, and 1.96 ± 0.05. Dissolved inorganic carbon is found to be the primary driver of both seasonal and interannual changes while total alkalinity and sea surface temperature have secondary effects that reduce the changes produced by dissolved inorganic carbon. Average interannual variations during winter are around 3%, 0.1%, and 2% for $p$CO$_2$, pH, and Ω$_{ar}$, respectively and slightly larger in the eastern part of the study area (Skagerrak region) than in the western part (North Atlantic Water region). Statistically significant long‐term trends were found only in the North Atlantic Water region with mean annual rates of 2.39 ± 0.58 μatm/year, −0.0024 ± 0.001 year$^{‐1}$, and −0.010 ± 0.003 year‐1 for pCO$_2$, pH, and Ω$_{ar}$, respectively. The drivers of the observed trends as well as reasons for the lack of statistically significant trends in the Skagerrak region are discussed. Article in Journal/Newspaper North Atlantic Ocean acidification Archives ouvertes de Paris-Saclay Journal of Geophysical Research: Biogeosciences 124 10 3088 3103 |