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Southern Ocean CO2 sink: The contribution of the sea ice
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| Zeitschriftentitel: | Journal of Geophysical Research: Oceans |
|---|---|
| Personen und Körperschaften: | , , , , , , , , , , , , |
| In: | Journal of Geophysical Research: Oceans, 119, 2014, 9, S. 6340-6355 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
|
| Schlagwörter: |
| author_facet |
Delille, Bruno Vancoppenolle, Martin Geilfus, Nicolas‐Xavier Tilbrook, Bronte Lannuzel, Delphine Schoemann, Véronique Becquevort, Sylvie Carnat, Gauthier Delille, Daniel Lancelot, Christiane Chou, Lei Dieckmann, Gerhard S. Tison, Jean‐Louis Delille, Bruno Vancoppenolle, Martin Geilfus, Nicolas‐Xavier Tilbrook, Bronte Lannuzel, Delphine Schoemann, Véronique Becquevort, Sylvie Carnat, Gauthier Delille, Daniel Lancelot, Christiane Chou, Lei Dieckmann, Gerhard S. Tison, Jean‐Louis |
|---|---|
| author |
Delille, Bruno Vancoppenolle, Martin Geilfus, Nicolas‐Xavier Tilbrook, Bronte Lannuzel, Delphine Schoemann, Véronique Becquevort, Sylvie Carnat, Gauthier Delille, Daniel Lancelot, Christiane Chou, Lei Dieckmann, Gerhard S. Tison, Jean‐Louis |
| spellingShingle |
Delille, Bruno Vancoppenolle, Martin Geilfus, Nicolas‐Xavier Tilbrook, Bronte Lannuzel, Delphine Schoemann, Véronique Becquevort, Sylvie Carnat, Gauthier Delille, Daniel Lancelot, Christiane Chou, Lei Dieckmann, Gerhard S. Tison, Jean‐Louis Journal of Geophysical Research: Oceans Southern Ocean CO2 sink: The contribution of the sea ice Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography |
| author_sort |
delille, bruno |
| spelling |
Delille, Bruno Vancoppenolle, Martin Geilfus, Nicolas‐Xavier Tilbrook, Bronte Lannuzel, Delphine Schoemann, Véronique Becquevort, Sylvie Carnat, Gauthier Delille, Daniel Lancelot, Christiane Chou, Lei Dieckmann, Gerhard S. Tison, Jean‐Louis 2169-9275 2169-9291 American Geophysical Union (AGU) Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography http://dx.doi.org/10.1002/2014jc009941 <jats:title>Abstract</jats:title><jats:p>We report first direct measurements of the partial pressure of CO<jats:sub>2</jats:sub> (pCO<jats:sub>2</jats:sub>) within Antarctic pack sea ice brines and related CO<jats:sub>2</jats:sub> fluxes across the air‐ice interface. From late winter to summer, brines encased in the ice change from a CO<jats:sub>2</jats:sub> large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO<jats:sub>2</jats:sub> in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO<jats:sub>2</jats:sub> transfer at the air‐sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO<jats:sub>2</jats:sub>. We upscale these observations to the whole Antarctic sea ice cover using the NEMO‐LIM3 large‐scale sea ice‐ocean and provide first estimates of spring and summer CO<jats:sub>2</jats:sub> uptake from the atmosphere by Antarctic sea ice. Over the spring‐summer period, the Antarctic sea ice cover is a net sink of atmospheric CO<jats:sub>2</jats:sub> of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO<jats:sub>2</jats:sub> of the Southern Ocean.</jats:p> Southern Ocean CO<sub>2</sub> sink: The contribution of the sea ice Journal of Geophysical Research: Oceans |
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10.1002/2014jc009941 |
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Journal of Geophysical Research: Oceans |
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| title |
Southern Ocean CO2 sink: The contribution of the sea ice |
| title_unstemmed |
Southern Ocean CO2 sink: The contribution of the sea ice |
| title_full |
Southern Ocean CO2 sink: The contribution of the sea ice |
| title_fullStr |
Southern Ocean CO2 sink: The contribution of the sea ice |
| title_full_unstemmed |
Southern Ocean CO2 sink: The contribution of the sea ice |
| title_short |
Southern Ocean CO2 sink: The contribution of the sea ice |
| title_sort |
southern ocean co<sub>2</sub> sink: the contribution of the sea ice |
| topic |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography |
| url |
http://dx.doi.org/10.1002/2014jc009941 |
| publishDate |
2014 |
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6340-6355 |
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<jats:title>Abstract</jats:title><jats:p>We report first direct measurements of the partial pressure of CO<jats:sub>2</jats:sub> (pCO<jats:sub>2</jats:sub>) within Antarctic pack sea ice brines and related CO<jats:sub>2</jats:sub> fluxes across the air‐ice interface. From late winter to summer, brines encased in the ice change from a CO<jats:sub>2</jats:sub> large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO<jats:sub>2</jats:sub> in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO<jats:sub>2</jats:sub> transfer at the air‐sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO<jats:sub>2</jats:sub>. We upscale these observations to the whole Antarctic sea ice cover using the NEMO‐LIM3 large‐scale sea ice‐ocean and provide first estimates of spring and summer CO<jats:sub>2</jats:sub> uptake from the atmosphere by Antarctic sea ice. Over the spring‐summer period, the Antarctic sea ice cover is a net sink of atmospheric CO<jats:sub>2</jats:sub> of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO<jats:sub>2</jats:sub> of the Southern Ocean.</jats:p> |
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| author | Delille, Bruno, Vancoppenolle, Martin, Geilfus, Nicolas‐Xavier, Tilbrook, Bronte, Lannuzel, Delphine, Schoemann, Véronique, Becquevort, Sylvie, Carnat, Gauthier, Delille, Daniel, Lancelot, Christiane, Chou, Lei, Dieckmann, Gerhard S., Tison, Jean‐Louis |
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| description | <jats:title>Abstract</jats:title><jats:p>We report first direct measurements of the partial pressure of CO<jats:sub>2</jats:sub> (pCO<jats:sub>2</jats:sub>) within Antarctic pack sea ice brines and related CO<jats:sub>2</jats:sub> fluxes across the air‐ice interface. From late winter to summer, brines encased in the ice change from a CO<jats:sub>2</jats:sub> large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO<jats:sub>2</jats:sub> in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO<jats:sub>2</jats:sub> transfer at the air‐sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO<jats:sub>2</jats:sub>. We upscale these observations to the whole Antarctic sea ice cover using the NEMO‐LIM3 large‐scale sea ice‐ocean and provide first estimates of spring and summer CO<jats:sub>2</jats:sub> uptake from the atmosphere by Antarctic sea ice. Over the spring‐summer period, the Antarctic sea ice cover is a net sink of atmospheric CO<jats:sub>2</jats:sub> of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO<jats:sub>2</jats:sub> of the Southern Ocean.</jats:p> |
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| spelling | Delille, Bruno Vancoppenolle, Martin Geilfus, Nicolas‐Xavier Tilbrook, Bronte Lannuzel, Delphine Schoemann, Véronique Becquevort, Sylvie Carnat, Gauthier Delille, Daniel Lancelot, Christiane Chou, Lei Dieckmann, Gerhard S. Tison, Jean‐Louis 2169-9275 2169-9291 American Geophysical Union (AGU) Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography http://dx.doi.org/10.1002/2014jc009941 <jats:title>Abstract</jats:title><jats:p>We report first direct measurements of the partial pressure of CO<jats:sub>2</jats:sub> (pCO<jats:sub>2</jats:sub>) within Antarctic pack sea ice brines and related CO<jats:sub>2</jats:sub> fluxes across the air‐ice interface. From late winter to summer, brines encased in the ice change from a CO<jats:sub>2</jats:sub> large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO<jats:sub>2</jats:sub> in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO<jats:sub>2</jats:sub> transfer at the air‐sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO<jats:sub>2</jats:sub>. We upscale these observations to the whole Antarctic sea ice cover using the NEMO‐LIM3 large‐scale sea ice‐ocean and provide first estimates of spring and summer CO<jats:sub>2</jats:sub> uptake from the atmosphere by Antarctic sea ice. Over the spring‐summer period, the Antarctic sea ice cover is a net sink of atmospheric CO<jats:sub>2</jats:sub> of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO<jats:sub>2</jats:sub> of the Southern Ocean.</jats:p> Southern Ocean CO<sub>2</sub> sink: The contribution of the sea ice Journal of Geophysical Research: Oceans |
| spellingShingle | Delille, Bruno, Vancoppenolle, Martin, Geilfus, Nicolas‐Xavier, Tilbrook, Bronte, Lannuzel, Delphine, Schoemann, Véronique, Becquevort, Sylvie, Carnat, Gauthier, Delille, Daniel, Lancelot, Christiane, Chou, Lei, Dieckmann, Gerhard S., Tison, Jean‐Louis, Journal of Geophysical Research: Oceans, Southern Ocean CO2 sink: The contribution of the sea ice, Earth and Planetary Sciences (miscellaneous), Space and Planetary Science, Geochemistry and Petrology, Geophysics, Oceanography |
| title | Southern Ocean CO2 sink: The contribution of the sea ice |
| title_full | Southern Ocean CO2 sink: The contribution of the sea ice |
| title_fullStr | Southern Ocean CO2 sink: The contribution of the sea ice |
| title_full_unstemmed | Southern Ocean CO2 sink: The contribution of the sea ice |
| title_short | Southern Ocean CO2 sink: The contribution of the sea ice |
| title_sort | southern ocean co<sub>2</sub> sink: the contribution of the sea ice |
| title_unstemmed | Southern Ocean CO2 sink: The contribution of the sea ice |
| topic | Earth and Planetary Sciences (miscellaneous), Space and Planetary Science, Geochemistry and Petrology, Geophysics, Oceanography |
| url | http://dx.doi.org/10.1002/2014jc009941 |