Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis
Climatology-based storage rate of anthropogenic CO2 (Cant, referred to year 2000) in the North-East Atlantic (53 ± 9 kmol s−1, 0.020 ± 0.003 Pg-C yr−1) is described on annual mean terms. Cant advection (32 ± 14 kmol s−1) occurs mostly in the upper 1800 m and contributes to 60% of the Cant storage ra...
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ftnerc:oai:nora.nerc.ac.uk:521095 2023-05-15T17:35:23+02:00 Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis Carracedo Segade, L.I. Pérez, F.F. Gilcoto, M. Velo, A. Padín, A. Rosón, G. 2018 text http://nora.nerc.ac.uk/id/eprint/521095/ https://nora.nerc.ac.uk/id/eprint/521095/1/Carracedo_etal_Authors_Version.pdf https://doi.org/10.1016/j.pocean.2018.01.009 en eng https://nora.nerc.ac.uk/id/eprint/521095/1/Carracedo_etal_Authors_Version.pdf Carracedo Segade, L.I.; Pérez, F.F.; Gilcoto, M.; Velo, A.; Padín, A.; Rosón, G. 2018 Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis. Progress in Oceanography, 161. 78-86. https://doi.org/10.1016/j.pocean.2018.01.009 <https://doi.org/10.1016/j.pocean.2018.01.009> Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1016/j.pocean.2018.01.009 2023-02-04T19:47:10Z Climatology-based storage rate of anthropogenic CO2 (Cant, referred to year 2000) in the North-East Atlantic (53 ± 9 kmol s−1, 0.020 ± 0.003 Pg-C yr−1) is described on annual mean terms. Cant advection (32 ± 14 kmol s−1) occurs mostly in the upper 1800 m and contributes to 60% of the Cant storage rate. The Azores and Portugal Currents act as ‘Cant streams’ importing 389 ± 90 kmol s−1, most of which recirculates southwards with the Canary Current (−214 ± 34 kmol s−1). The Azores Counter Current (−79 ± 36 kmol s−1) and the northward-flowing Mediterranean Water advective branch (−31 ± 12 kmol s−1) comprise secondary Cant export routes. By means of Cant transport decomposition, we find horizontal circulation to represent 11% of the Cant storage rate, while overturning circulation is the main driver (48% of the Cant storage rate). Within the domain of this study, overturning circulation is a key mechanism by which Cant in the upper layer (0–500 dbar) is drawdown (74 ± 14 kmol s−1) to intermediate levels (500–2000 dbar), and entrained (37 ± 7 kmol s−1) into the Mediterranean Outflow Water to form Mediterranean Water. This newly formed water mass partly exports Cant to the North Atlantic at a rate of −39 ± 9 kmol s−1 and partly contributes to the Cant storage in the North-East Atlantic (with up to 0.015 ± 0.006 Pg-C yr−1). Closing the Cant budget, 40% of the Cant storage in the North-East Atlantic is attributable to anthropogenic CO2 uptake from the atmosphere (21 ± 10 kmol s−1). Article in Journal/Newspaper North Atlantic North East Atlantic Natural Environment Research Council: NERC Open Research Archive Progress in Oceanography 161 78 86 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
Climatology-based storage rate of anthropogenic CO2 (Cant, referred to year 2000) in the North-East Atlantic (53 ± 9 kmol s−1, 0.020 ± 0.003 Pg-C yr−1) is described on annual mean terms. Cant advection (32 ± 14 kmol s−1) occurs mostly in the upper 1800 m and contributes to 60% of the Cant storage rate. The Azores and Portugal Currents act as ‘Cant streams’ importing 389 ± 90 kmol s−1, most of which recirculates southwards with the Canary Current (−214 ± 34 kmol s−1). The Azores Counter Current (−79 ± 36 kmol s−1) and the northward-flowing Mediterranean Water advective branch (−31 ± 12 kmol s−1) comprise secondary Cant export routes. By means of Cant transport decomposition, we find horizontal circulation to represent 11% of the Cant storage rate, while overturning circulation is the main driver (48% of the Cant storage rate). Within the domain of this study, overturning circulation is a key mechanism by which Cant in the upper layer (0–500 dbar) is drawdown (74 ± 14 kmol s−1) to intermediate levels (500–2000 dbar), and entrained (37 ± 7 kmol s−1) into the Mediterranean Outflow Water to form Mediterranean Water. This newly formed water mass partly exports Cant to the North Atlantic at a rate of −39 ± 9 kmol s−1 and partly contributes to the Cant storage in the North-East Atlantic (with up to 0.015 ± 0.006 Pg-C yr−1). Closing the Cant budget, 40% of the Cant storage in the North-East Atlantic is attributable to anthropogenic CO2 uptake from the atmosphere (21 ± 10 kmol s−1). |
format |
Article in Journal/Newspaper |
author |
Carracedo Segade, L.I. Pérez, F.F. Gilcoto, M. Velo, A. Padín, A. Rosón, G. |
spellingShingle |
Carracedo Segade, L.I. Pérez, F.F. Gilcoto, M. Velo, A. Padín, A. Rosón, G. Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis |
author_facet |
Carracedo Segade, L.I. Pérez, F.F. Gilcoto, M. Velo, A. Padín, A. Rosón, G. |
author_sort |
Carracedo Segade, L.I. |
title |
Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis |
title_short |
Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis |
title_full |
Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis |
title_fullStr |
Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis |
title_full_unstemmed |
Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis |
title_sort |
role of the circulation on the anthropogenic co 2 inventory in the north-east atlantic: a climatological analysis |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/521095/ https://nora.nerc.ac.uk/id/eprint/521095/1/Carracedo_etal_Authors_Version.pdf https://doi.org/10.1016/j.pocean.2018.01.009 |
genre |
North Atlantic North East Atlantic |
genre_facet |
North Atlantic North East Atlantic |
op_relation |
https://nora.nerc.ac.uk/id/eprint/521095/1/Carracedo_etal_Authors_Version.pdf Carracedo Segade, L.I.; Pérez, F.F.; Gilcoto, M.; Velo, A.; Padín, A.; Rosón, G. 2018 Role of the circulation on the anthropogenic CO 2 inventory in the North-East Atlantic: A climatological analysis. Progress in Oceanography, 161. 78-86. https://doi.org/10.1016/j.pocean.2018.01.009 <https://doi.org/10.1016/j.pocean.2018.01.009> |
op_doi |
https://doi.org/10.1016/j.pocean.2018.01.009 |
container_title |
Progress in Oceanography |
container_volume |
161 |
container_start_page |
78 |
op_container_end_page |
86 |
_version_ |
1766134536073117696 |