Anthropogenic carbon distribution in the eastern South Pacific Ocean

We present results of the CO<sub>2</sub>/carbonate system from the BIOSOPE cruise in the Eastern South Pacific Ocean, in an area not sampled previously. In particular, we present estimates of the anthropogenic carbon (<i>C</i>><su...

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Main Authors: C. Goyet, R. Ito Gonçalves, F. Touratier
Format: Article
Language:English
Published: Copernicus Publications 2009-02-01
Series:Biogeosciences
Online Access:http://www.biogeosciences.net/6/149/2009/bg-6-149-2009.pdf
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author C. Goyet
R. Ito Gonçalves
F. Touratier
author_facet C. Goyet
R. Ito Gonçalves
F. Touratier
author_sort C. Goyet
collection DOAJ
description We present results of the CO<sub>2</sub>/carbonate system from the BIOSOPE cruise in the Eastern South Pacific Ocean, in an area not sampled previously. In particular, we present estimates of the anthropogenic carbon (<i>C</i>><sup>TrOCA</sup><sub>ant</sub>) distribution in the upper 1000 m of this region using the TrOCA method. The highest concentrations of <i>C</i><sup>TrOCA</sup><sub>ant</sub> found around 13° S, 132° W and 32° S, 91° W, are higher than 80 μmol.kg<sup>−1</sup> and 70 μmol.kg<sup>−1</sup>, respectively. The lowest concentrations are observed below 800 m depth (≤2 μmol.kg<sup>−1</sup>) and within the Oxygen Minimum Zone (OMZ), mainly around 140° W (<11 μmol.kg<sup>−1</sup>). As a result of the anthropogenic carbon penetration there has been decrease in pH by over 0.1 on an average in the upper 200 m. This work further improves our understanding on the penetration of anthropogenic carbon in the Eastern Pacific Ocean.
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spelling doaj.art-b30f79a3987445dfb7287dff5624c6fb2022-12-21T19:43:14ZengCopernicus PublicationsBiogeosciences1726-41701726-41892009-02-0162149156Anthropogenic carbon distribution in the eastern South Pacific OceanC. GoyetR. Ito GonçalvesF. TouratierWe present results of the CO<sub>2</sub>/carbonate system from the BIOSOPE cruise in the Eastern South Pacific Ocean, in an area not sampled previously. In particular, we present estimates of the anthropogenic carbon (<i>C</i>><sup>TrOCA</sup><sub>ant</sub>) distribution in the upper 1000 m of this region using the TrOCA method. The highest concentrations of <i>C</i><sup>TrOCA</sup><sub>ant</sub> found around 13° S, 132° W and 32° S, 91° W, are higher than 80 μmol.kg<sup>−1</sup> and 70 μmol.kg<sup>−1</sup>, respectively. The lowest concentrations are observed below 800 m depth (≤2 μmol.kg<sup>−1</sup>) and within the Oxygen Minimum Zone (OMZ), mainly around 140° W (<11 μmol.kg<sup>−1</sup>). As a result of the anthropogenic carbon penetration there has been decrease in pH by over 0.1 on an average in the upper 200 m. This work further improves our understanding on the penetration of anthropogenic carbon in the Eastern Pacific Ocean.http://www.biogeosciences.net/6/149/2009/bg-6-149-2009.pdf
spellingShingle C. Goyet
R. Ito Gonçalves
F. Touratier
Anthropogenic carbon distribution in the eastern South Pacific Ocean
Biogeosciences
title Anthropogenic carbon distribution in the eastern South Pacific Ocean
title_full Anthropogenic carbon distribution in the eastern South Pacific Ocean
title_fullStr Anthropogenic carbon distribution in the eastern South Pacific Ocean
title_full_unstemmed Anthropogenic carbon distribution in the eastern South Pacific Ocean
title_short Anthropogenic carbon distribution in the eastern South Pacific Ocean
title_sort anthropogenic carbon distribution in the eastern south pacific ocean
url http://www.biogeosciences.net/6/149/2009/bg-6-149-2009.pdf
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