An assessment of the Atlantic and Arctic sea–air CO2 fluxes, 1990–2009
Schuster, Ute at al. 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...
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ftcsic:oai:digital.csic.es:10261/91764 2024-02-11T10:00:34+01:00 An assessment of the Atlantic and Arctic sea–air CO2 fluxes, 1990–2009 Schuster, Ute Ríos, Aida F. Watson, Andrew J. 2013 http://hdl.handle.net/10261/91764 https://doi.org/10.5194/bg-10-607-2013 en eng European Geosciences Union Copernicus Publications #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/264879 Publisher’s version http://dx.doi.org/10.5194/bg-10-607-2013 Biogeosciences 10: 607-627 (2013) 1726-4170 http://hdl.handle.net/10261/91764 doi:10.5194/bg-10-607-2013 1726-4189 open artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.5194/bg-10-607-2013 2024-01-16T09:56:26Z Schuster, Ute at al. 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 pCO2-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 pCO2 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° S and 79° 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. U. Schuster has been supported by EU grants IP 511176-2 (CARBOOCEAN), 212196 (COCOS), and 264879 (CARBOCHANGE), and UK NERC grant NE/H017046/1 (UKOARP). G. A. McKinley and A. Fay thank NASA for support (NNX08AR68G, NNX11AF53G). P. Landsch ̈ utzer has been supported by EU grant 238366 (GREENCYCLESII). N. Metzl acknowledges ... Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) Arctic Biogeosciences 10 1 607 627 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
language |
English |
description |
Schuster, Ute at al. 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 pCO2-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 pCO2 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° S and 79° 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. U. Schuster has been supported by EU grants IP 511176-2 (CARBOOCEAN), 212196 (COCOS), and 264879 (CARBOCHANGE), and UK NERC grant NE/H017046/1 (UKOARP). G. A. McKinley and A. Fay thank NASA for support (NNX08AR68G, NNX11AF53G). P. Landsch ̈ utzer has been supported by EU grant 238366 (GREENCYCLESII). N. Metzl acknowledges ... |
format |
Article in Journal/Newspaper |
author |
Schuster, Ute Ríos, Aida F. Watson, Andrew J. |
spellingShingle |
Schuster, Ute Ríos, Aida F. Watson, Andrew J. An assessment of the Atlantic and Arctic sea–air CO2 fluxes, 1990–2009 |
author_facet |
Schuster, Ute Ríos, Aida F. Watson, Andrew J. |
author_sort |
Schuster, Ute |
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 |
European Geosciences Union |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/91764 https://doi.org/10.5194/bg-10-607-2013 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/264879 Publisher’s version http://dx.doi.org/10.5194/bg-10-607-2013 Biogeosciences 10: 607-627 (2013) 1726-4170 http://hdl.handle.net/10261/91764 doi:10.5194/bg-10-607-2013 1726-4189 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/bg-10-607-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
1 |
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607 |
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627 |
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