Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean
Measured concentrations of CO 2 , O 2 , and related chemical species in a section across the Florida Straits and in the open Atlantic Ocean at approximately 25°N, have been combined with estimates of oceanic mass transport to estimate both the gross transport of CO 2 by the ocean at this latitude an...
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American Association for the Advancement of Science (AAAS)
1989
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Online Access: | http://dx.doi.org/10.1126/science.246.4929.477 https://www.science.org/doi/pdf/10.1126/science.246.4929.477 |
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craaas:10.1126/science.246.4929.477 2024-06-23T07:55:02+00:00 Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean Brewer, Peter G. Goyet, Catherine Dyrssen, David 1989 http://dx.doi.org/10.1126/science.246.4929.477 https://www.science.org/doi/pdf/10.1126/science.246.4929.477 en eng American Association for the Advancement of Science (AAAS) Science volume 246, issue 4929, page 477-479 ISSN 0036-8075 1095-9203 journal-article 1989 craaas https://doi.org/10.1126/science.246.4929.477 2024-05-24T12:53:41Z Measured concentrations of CO 2 , O 2 , and related chemical species in a section across the Florida Straits and in the open Atlantic Ocean at approximately 25°N, have been combined with estimates of oceanic mass transport to estimate both the gross transport of CO 2 by the ocean at this latitude and the net CO 2 flux from exchange with the atmosphere. The northward flux was 63.9 × 10 6 moles per second (mol/s); the southward flux was 64.6 × 10 6 mol/s. These values yield a net CO 2 flux of 0.7 × 10 6 mol/s (0.26 ± 0.03 gigaton of C per year) southward. The North Atlantic Ocean has been considered to be a strong sink for atmospheric CO 2 , yet these results show that the net flux in 1988 across 25°N was small. For O 2 the equivalent signal is 4.89 × 10 6 mol/s northward and 6.97 × 10 6 mol/s southward, and the net transport is 2.08 × 10 6 mol/s or three times the net CO 2 flux. These data suggest that the North Atlantic Ocean is today a relatively small sink for atmospheric CO 2 , in spite of its large heat loss, but a larger sink for O 2 because of the additive effects of chemical and thermal pumping on the CO 2 cycle but their near equal and opposite effects on the CO 2 cycle. Article in Journal/Newspaper North Atlantic AAAS Resource Center (American Association for the Advancement of Science) Science 246 4929 477 479 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Measured concentrations of CO 2 , O 2 , and related chemical species in a section across the Florida Straits and in the open Atlantic Ocean at approximately 25°N, have been combined with estimates of oceanic mass transport to estimate both the gross transport of CO 2 by the ocean at this latitude and the net CO 2 flux from exchange with the atmosphere. The northward flux was 63.9 × 10 6 moles per second (mol/s); the southward flux was 64.6 × 10 6 mol/s. These values yield a net CO 2 flux of 0.7 × 10 6 mol/s (0.26 ± 0.03 gigaton of C per year) southward. The North Atlantic Ocean has been considered to be a strong sink for atmospheric CO 2 , yet these results show that the net flux in 1988 across 25°N was small. For O 2 the equivalent signal is 4.89 × 10 6 mol/s northward and 6.97 × 10 6 mol/s southward, and the net transport is 2.08 × 10 6 mol/s or three times the net CO 2 flux. These data suggest that the North Atlantic Ocean is today a relatively small sink for atmospheric CO 2 , in spite of its large heat loss, but a larger sink for O 2 because of the additive effects of chemical and thermal pumping on the CO 2 cycle but their near equal and opposite effects on the CO 2 cycle. |
format |
Article in Journal/Newspaper |
author |
Brewer, Peter G. Goyet, Catherine Dyrssen, David |
spellingShingle |
Brewer, Peter G. Goyet, Catherine Dyrssen, David Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean |
author_facet |
Brewer, Peter G. Goyet, Catherine Dyrssen, David |
author_sort |
Brewer, Peter G. |
title |
Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean |
title_short |
Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean |
title_full |
Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean |
title_fullStr |
Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean |
title_full_unstemmed |
Carbon Dioxide Transport by Ocean Currents at 25°N Latitude in the Atlantic Ocean |
title_sort |
carbon dioxide transport by ocean currents at 25°n latitude in the atlantic ocean |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1989 |
url |
http://dx.doi.org/10.1126/science.246.4929.477 https://www.science.org/doi/pdf/10.1126/science.246.4929.477 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Science volume 246, issue 4929, page 477-479 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.246.4929.477 |
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Science |
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246 |
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4929 |
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477 |
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479 |
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1802647424238354432 |