Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone
The fate of the Southern Ocean atmospheric CO(2) sink is under question. Here we assess seasonal to decadal changes of surface fCO(2) within an extended sink area along the track between Kerguelen and Amsterdam islands in the subantarctic zone. Data from 17 oceanographic cruises were used, from 1991...
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ftarchimer:oai:archimer.ifremer.fr:25557 2023-05-15T18:25:33+02:00 Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone Lourantou, Anna Metzl, Nicolas 2011-12 application/pdf https://archimer.ifremer.fr/doc/00144/25557/23706.pdf https://doi.org/10.1029/2011GL049614 https://archimer.ifremer.fr/doc/00144/25557/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00144/25557/23706.pdf doi:10.1029/2011GL049614 https://archimer.ifremer.fr/doc/00144/25557/ 2011 by the American Geophysical Union. info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2011-12 , Vol. 38 , P. - Kerguelen air-sea CO2 fluxes carbon cycle frontal region island mass effect subantarctic zone text Publication info:eu-repo/semantics/article 2011 ftarchimer https://doi.org/10.1029/2011GL049614 2021-09-23T20:23:16Z The fate of the Southern Ocean atmospheric CO(2) sink is under question. Here we assess seasonal to decadal changes of surface fCO(2) within an extended sink area along the track between Kerguelen and Amsterdam islands in the subantarctic zone. Data from 17 oceanographic cruises were used, from 1991 to 2011 and two distinct regions were examined, separated by the Subantarctic Front (SAF). The region south of the SAF displays a strong summer phytoplankton bloom of up to -28 mmol C m(-2) d(-1) within a calm area, constrained by physics and topography. On an annual basis, this region is a 6-fold more important sink than that deduced from Takahashi climatology, highlighting the importance of key-areas separate examination before proceeding to spatial integration. Our data point towards a decadal decline of the CO(2) sink in the Southern part of the SAF, most probably due to both warming and less Fe input to surface waters from reduced water mixing. Citation: Lourantou, A., and N. Metzl (2011), Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone, Geophys. Res. Lett., 38, L23608, doi:10.1029/2011GL049614. Article in Journal/Newspaper Southern Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Kerguelen Southern Ocean Geophysical Research Letters 38 23 n/a n/a |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Kerguelen air-sea CO2 fluxes carbon cycle frontal region island mass effect subantarctic zone |
spellingShingle |
Kerguelen air-sea CO2 fluxes carbon cycle frontal region island mass effect subantarctic zone Lourantou, Anna Metzl, Nicolas Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
topic_facet |
Kerguelen air-sea CO2 fluxes carbon cycle frontal region island mass effect subantarctic zone |
description |
The fate of the Southern Ocean atmospheric CO(2) sink is under question. Here we assess seasonal to decadal changes of surface fCO(2) within an extended sink area along the track between Kerguelen and Amsterdam islands in the subantarctic zone. Data from 17 oceanographic cruises were used, from 1991 to 2011 and two distinct regions were examined, separated by the Subantarctic Front (SAF). The region south of the SAF displays a strong summer phytoplankton bloom of up to -28 mmol C m(-2) d(-1) within a calm area, constrained by physics and topography. On an annual basis, this region is a 6-fold more important sink than that deduced from Takahashi climatology, highlighting the importance of key-areas separate examination before proceeding to spatial integration. Our data point towards a decadal decline of the CO(2) sink in the Southern part of the SAF, most probably due to both warming and less Fe input to surface waters from reduced water mixing. Citation: Lourantou, A., and N. Metzl (2011), Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone, Geophys. Res. Lett., 38, L23608, doi:10.1029/2011GL049614. |
format |
Article in Journal/Newspaper |
author |
Lourantou, Anna Metzl, Nicolas |
author_facet |
Lourantou, Anna Metzl, Nicolas |
author_sort |
Lourantou, Anna |
title |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_short |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_full |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_fullStr |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_full_unstemmed |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_sort |
decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
publisher |
Amer Geophysical Union |
publishDate |
2011 |
url |
https://archimer.ifremer.fr/doc/00144/25557/23706.pdf https://doi.org/10.1029/2011GL049614 https://archimer.ifremer.fr/doc/00144/25557/ |
geographic |
Kerguelen Southern Ocean |
geographic_facet |
Kerguelen Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2011-12 , Vol. 38 , P. - |
op_relation |
https://archimer.ifremer.fr/doc/00144/25557/23706.pdf doi:10.1029/2011GL049614 https://archimer.ifremer.fr/doc/00144/25557/ |
op_rights |
2011 by the American Geophysical Union. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2011GL049614 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
23 |
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n/a |
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n/a |
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1766207088160145408 |