The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study
Distributions of total alkalinity (TA), dissolved inorganic carbon (DIC), and other parameters relevant to the marine inorganic carbon system were investigated in shelf and adjacent ocean waters during a U.S. Gulf of Mexico and East Coast Carbon cruise in July–August 2007. TA exhibited near‐conserva...
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crwiley:10.4319/lo.2013.58.1.0325 2024-06-09T07:48:18+00:00 The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study Wang, Zhaohui Aleck Wanninkhof, Rik Cai, Wei-Jun Byrne, Robert H. Hu, Xinping Peng, Tsung-Hung Huang, Wei-Jen 2013 http://dx.doi.org/10.4319/lo.2013.58.1.0325 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2013.58.1.0325 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2013.58.1.0325 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 58, issue 1, page 325-342 ISSN 0024-3590 1939-5590 journal-article 2013 crwiley https://doi.org/10.4319/lo.2013.58.1.0325 2024-05-16T14:26:53Z Distributions of total alkalinity (TA), dissolved inorganic carbon (DIC), and other parameters relevant to the marine inorganic carbon system were investigated in shelf and adjacent ocean waters during a U.S. Gulf of Mexico and East Coast Carbon cruise in July–August 2007. TA exhibited near‐conservative behavior with respect to salinity. Shelf concentrations were generally high in southern waters (Gulf of Mexico and East Florida) and decreased northward from Georgia to the Gulf of Maine. DIC was less variable geographically and exhibited strongly nonconservative behavior. As a result, the ratio of TA to DIC generally decreased northward. The spatial patterns of other CO 2 system parameters closely followed those of the TA : DIC ratio. All sampled shelf waters were supersaturated with respect to aragonite (saturation state Ω A > 1). The most intensely buffered and supersaturated waters (Ω A > 5.0) were in northern Gulf of Mexico river‐plume waters; the least intensely buffered and least supersaturated waters (Ω A < 1.3) were in the deep Gulf of Maine. Due to their relatively low pH, Ω A , and buffer intensity, waters of the northeastern U.S. shelves may be more susceptible to acidification pressures than are their southern counterparts. In the Mid‐Atlantic Bight, alongshore mixing tended to increase DIC concentrations southward, but this effect was largely offset by the opposing effects of biogeochemical processing. In the Gulf of Mexico, downstream increases in Loop Current DIC suggested significant contributions from shelf and gulf waters, estimated at 9.1 × 10 9 mol C d −1 . Off the southeastern U.S., along‐flow chemical changes in the Florida Current were dominated by mixing associated with North Atlantic subtropical recirculation. Article in Journal/Newspaper North Atlantic Wiley Online Library Limnology and Oceanography 58 1 325 342 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Distributions of total alkalinity (TA), dissolved inorganic carbon (DIC), and other parameters relevant to the marine inorganic carbon system were investigated in shelf and adjacent ocean waters during a U.S. Gulf of Mexico and East Coast Carbon cruise in July–August 2007. TA exhibited near‐conservative behavior with respect to salinity. Shelf concentrations were generally high in southern waters (Gulf of Mexico and East Florida) and decreased northward from Georgia to the Gulf of Maine. DIC was less variable geographically and exhibited strongly nonconservative behavior. As a result, the ratio of TA to DIC generally decreased northward. The spatial patterns of other CO 2 system parameters closely followed those of the TA : DIC ratio. All sampled shelf waters were supersaturated with respect to aragonite (saturation state Ω A > 1). The most intensely buffered and supersaturated waters (Ω A > 5.0) were in northern Gulf of Mexico river‐plume waters; the least intensely buffered and least supersaturated waters (Ω A < 1.3) were in the deep Gulf of Maine. Due to their relatively low pH, Ω A , and buffer intensity, waters of the northeastern U.S. shelves may be more susceptible to acidification pressures than are their southern counterparts. In the Mid‐Atlantic Bight, alongshore mixing tended to increase DIC concentrations southward, but this effect was largely offset by the opposing effects of biogeochemical processing. In the Gulf of Mexico, downstream increases in Loop Current DIC suggested significant contributions from shelf and gulf waters, estimated at 9.1 × 10 9 mol C d −1 . Off the southeastern U.S., along‐flow chemical changes in the Florida Current were dominated by mixing associated with North Atlantic subtropical recirculation. |
format |
Article in Journal/Newspaper |
author |
Wang, Zhaohui Aleck Wanninkhof, Rik Cai, Wei-Jun Byrne, Robert H. Hu, Xinping Peng, Tsung-Hung Huang, Wei-Jen |
spellingShingle |
Wang, Zhaohui Aleck Wanninkhof, Rik Cai, Wei-Jun Byrne, Robert H. Hu, Xinping Peng, Tsung-Hung Huang, Wei-Jen The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study |
author_facet |
Wang, Zhaohui Aleck Wanninkhof, Rik Cai, Wei-Jun Byrne, Robert H. Hu, Xinping Peng, Tsung-Hung Huang, Wei-Jen |
author_sort |
Wang, Zhaohui Aleck |
title |
The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study |
title_short |
The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study |
title_full |
The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study |
title_fullStr |
The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study |
title_full_unstemmed |
The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study |
title_sort |
marine inorganic carbon system along the gulf of mexico and atlantic coasts of the united states: insights from a transregional coastal carbon study |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.4319/lo.2013.58.1.0325 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2013.58.1.0325 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2013.58.1.0325 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography volume 58, issue 1, page 325-342 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2013.58.1.0325 |
container_title |
Limnology and Oceanography |
container_volume |
58 |
container_issue |
1 |
container_start_page |
325 |
op_container_end_page |
342 |
_version_ |
1801379965283860480 |