An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009
The Atlantic and Arctic Oceans are critical components of the global carbon cycle. Here we quantify the net sea-air CO2 flux, for the first time, across different methodologies for consistent time and space scales for the Atlantic and Arctic basins. We present the long-term mean, seasonal cycle, int...
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Online Access: | https://doi.org/10.5194/bg-10-607-2013 https://archimer.ifremer.fr/doc/00153/26409/24508.pdf https://archimer.ifremer.fr/doc/00153/26409/ |
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fttriple:oai:gotriple.eu:10670/1.l0skjd 2023-05-15T14:48:24+02:00 An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 Schuster, U. Mckinley, G. A. Bates, N. Chevallier, F. Doney, S. C. Fay, A. R. Gonzalez-davila, Melchor Gruber, N. Jones, S. Krijnen, J. Landschuetzer, P. Lefevre, N. Manizza, M. Mathis, J. Metzl, N. Olsen, A. Rios, A. F. Roedenbeck, C. Santana-casiano, J. M. Takahashi, T. Wanninkhof, R. Watson, A. J. 2013-01-01 https://doi.org/10.5194/bg-10-607-2013 https://archimer.ifremer.fr/doc/00153/26409/24508.pdf https://archimer.ifremer.fr/doc/00153/26409/ en eng Copernicus Gesellschaft Mbh doi:10.5194/bg-10-607-2013 10670/1.l0skjd https://archimer.ifremer.fr/doc/00153/26409/24508.pdf https://archimer.ifremer.fr/doc/00153/26409/ other Archimer, archive institutionnelle de l'Ifremer Biogeosciences (1726-4170) (Copernicus Gesellschaft Mbh), 2013 , Vol. 10 , N. 1 , P. 607-627 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2013 fttriple https://doi.org/10.5194/bg-10-607-2013 2023-01-22T18:29:16Z The Atlantic and Arctic Oceans are critical components of the global carbon cycle. Here we quantify the net sea-air CO2 flux, for the first time, across different methodologies for consistent time and space scales for the Atlantic and Arctic basins. We present the long-term mean, seasonal cycle, interannual variability and trends in sea-air CO2 flux for the period 1990 to 2009, and assign an uncertainty to each. We use regional cuts from global observations and modeling products, specifically a pCO(2)-based CO2 flux climatology, flux estimates from the inversion of oceanic and atmospheric data, and results from six ocean biogeochemical models. Additionally, we use basin-wide flux estimates from surface ocean pCO(2) observations based on two distinct methodologies. Our estimate of the contemporary sea-air flux of CO2 (sum of anthropogenic and natural components) by the Atlantic between 40 degrees S and 79 degrees N is -0.49 +/- 0.05 Pg C yr(-1), and by the Arctic it is -0.12 +/- 0.06 Pg C yr(-1), leading to a combined sea-air flux of -0.61 +/- 0.06 Pg C yr(-1) for the two decades (negative reflects ocean uptake). We do find broad agreement amongst methodologies with respect to the seasonal cycle in the subtropics of both hemispheres, but not elsewhere. Agreement with respect to detailed signals of interannual variability is poor, and correlations to the North Atlantic Oscillation are weaker in the North Atlantic and Arctic than in the equatorial region and southern subtropics. Linear trends for 1995 to 2009 indicate increased uptake and generally correspond between methodologies in the North Atlantic, but there is disagreement amongst methodologies in the equatorial region and southern subtropics. Text Arctic North Atlantic North Atlantic oscillation Unknown Arctic Biogeosciences 10 1 607 627 |
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English |
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envir geo |
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envir geo Schuster, U. Mckinley, G. A. Bates, N. Chevallier, F. Doney, S. C. Fay, A. R. Gonzalez-davila, Melchor Gruber, N. Jones, S. Krijnen, J. Landschuetzer, P. Lefevre, N. Manizza, M. Mathis, J. Metzl, N. Olsen, A. Rios, A. F. Roedenbeck, C. Santana-casiano, J. M. Takahashi, T. Wanninkhof, R. Watson, A. J. An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 |
topic_facet |
envir geo |
description |
The Atlantic and Arctic Oceans are critical components of the global carbon cycle. Here we quantify the net sea-air CO2 flux, for the first time, across different methodologies for consistent time and space scales for the Atlantic and Arctic basins. We present the long-term mean, seasonal cycle, interannual variability and trends in sea-air CO2 flux for the period 1990 to 2009, and assign an uncertainty to each. We use regional cuts from global observations and modeling products, specifically a pCO(2)-based CO2 flux climatology, flux estimates from the inversion of oceanic and atmospheric data, and results from six ocean biogeochemical models. Additionally, we use basin-wide flux estimates from surface ocean pCO(2) observations based on two distinct methodologies. Our estimate of the contemporary sea-air flux of CO2 (sum of anthropogenic and natural components) by the Atlantic between 40 degrees S and 79 degrees N is -0.49 +/- 0.05 Pg C yr(-1), and by the Arctic it is -0.12 +/- 0.06 Pg C yr(-1), leading to a combined sea-air flux of -0.61 +/- 0.06 Pg C yr(-1) for the two decades (negative reflects ocean uptake). We do find broad agreement amongst methodologies with respect to the seasonal cycle in the subtropics of both hemispheres, but not elsewhere. Agreement with respect to detailed signals of interannual variability is poor, and correlations to the North Atlantic Oscillation are weaker in the North Atlantic and Arctic than in the equatorial region and southern subtropics. Linear trends for 1995 to 2009 indicate increased uptake and generally correspond between methodologies in the North Atlantic, but there is disagreement amongst methodologies in the equatorial region and southern subtropics. |
format |
Text |
author |
Schuster, U. Mckinley, G. A. Bates, N. Chevallier, F. Doney, S. C. Fay, A. R. Gonzalez-davila, Melchor Gruber, N. Jones, S. Krijnen, J. Landschuetzer, P. Lefevre, N. Manizza, M. Mathis, J. Metzl, N. Olsen, A. Rios, A. F. Roedenbeck, C. Santana-casiano, J. M. Takahashi, T. Wanninkhof, R. Watson, A. J. |
author_facet |
Schuster, U. Mckinley, G. A. Bates, N. Chevallier, F. Doney, S. C. Fay, A. R. Gonzalez-davila, Melchor Gruber, N. Jones, S. Krijnen, J. Landschuetzer, P. Lefevre, N. Manizza, M. Mathis, J. Metzl, N. Olsen, A. Rios, A. F. Roedenbeck, C. Santana-casiano, J. M. Takahashi, T. Wanninkhof, R. Watson, A. J. |
author_sort |
Schuster, U. |
title |
An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 |
title_short |
An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 |
title_full |
An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 |
title_fullStr |
An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 |
title_full_unstemmed |
An assessment of the Atlantic and Arctic sea-air CO2 fluxes, 1990-2009 |
title_sort |
assessment of the atlantic and arctic sea-air co2 fluxes, 1990-2009 |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2013 |
url |
https://doi.org/10.5194/bg-10-607-2013 https://archimer.ifremer.fr/doc/00153/26409/24508.pdf https://archimer.ifremer.fr/doc/00153/26409/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
Archimer, archive institutionnelle de l'Ifremer Biogeosciences (1726-4170) (Copernicus Gesellschaft Mbh), 2013 , Vol. 10 , N. 1 , P. 607-627 |
op_relation |
doi:10.5194/bg-10-607-2013 10670/1.l0skjd https://archimer.ifremer.fr/doc/00153/26409/24508.pdf https://archimer.ifremer.fr/doc/00153/26409/ |
op_rights |
other |
op_doi |
https://doi.org/10.5194/bg-10-607-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
1 |
container_start_page |
607 |
op_container_end_page |
627 |
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1766319476571111424 |